Limited Slip from Jeep Cherokee into W123/W126 3.07?
Limited Slip from Jeep Cherokee into W123/W126 3.07?
12-27-2013, 10:40 PM
#1
Doing some research, I have found that the Jeep Cherokee with the 4.0 and a manual transmission came with a 3.07:1 gearset and, sometimes, limited slip. The limited slip clutches are apparently $60-70 and meant to be replaced every 60,000 miles. At least around here, the yards are plentiful with Jeep Cherokees, so the parts should be widely available, and that's a WHOLE lot cheaper than $1,000+ for the rare Mercedes clutches.
I'm intrigued as to whether I could swap one of the following between the Jeep and a 3.07 Mercedes differential:
1) The LSD components
2) The gears
3) The diff
The main issue I'd see with swapping the diff or gears is that they would have to fit the Mercedes structure. Apparently, the Jeep used 27-spline axle shafts between 1991 and 1996, which is what Mercedes used, so this might sync. I don't know what I'd do about the carrier (as far as which one I'd use, if either).
I'm going to keep an eye out for a Cherokee with 4.0 and 5-speed in the yards so that I can take the diff to bits and see if it looks swappable. Anyone have any thoughts on this?
Here's the Jeep:
![[Image: 586073d1363393537-dana-35-lsd-forumrunne...192800.jpg]](http://www.jeepforum.com/forum/attachments/f9/586073d1363393537-dana-35-lsd-forumrunner_20130315_192800.jpg)
Here's the 'Benz:
This post was last modified: 12-28-2013, 11:02 PM by Jooseppi Luna.
Attached Files
Image(s)-Jooseppi
1982 300SD -- 211k, Texas car, tranny issues
1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod
. Given to me by JB3, who got it from purplecomputer.Some blasphemous vehicles in the fleet as well -- 2004 Corolla 5-speed and 1994 Buick Century
2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."
Jooseppi Luna
12-27-2013, 10:40 PM #1EDIT:I somehow managed to pull an idiot and give you a picture of a Ford 8.8 instead of a Dana 35. That is fixed now -- the pictured Jeep diff is most definitely a Dana 35 with limited slip.
Doing some research, I have found that the Jeep Cherokee with the 4.0 and a manual transmission came with a 3.07:1 gearset and, sometimes, limited slip. The limited slip clutches are apparently $60-70 and meant to be replaced every 60,000 miles. At least around here, the yards are plentiful with Jeep Cherokees, so the parts should be widely available, and that's a WHOLE lot cheaper than $1,000+ for the rare Mercedes clutches.
I'm intrigued as to whether I could swap one of the following between the Jeep and a 3.07 Mercedes differential:
1) The LSD components
2) The gears
3) The diff
The main issue I'd see with swapping the diff or gears is that they would have to fit the Mercedes structure. Apparently, the Jeep used 27-spline axle shafts between 1991 and 1996, which is what Mercedes used, so this might sync. I don't know what I'd do about the carrier (as far as which one I'd use, if either).
I'm going to keep an eye out for a Cherokee with 4.0 and 5-speed in the yards so that I can take the diff to bits and see if it looks swappable. Anyone have any thoughts on this?
Here's the Jeep:
Here's the 'Benz:
Attached Files
Image(s)-Jooseppi
1982 300SD -- 211k, Texas car, tranny issues
1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod
. Given to me by JB3, who got it from purplecomputer.Some blasphemous vehicles in the fleet as well -- 2004 Corolla 5-speed and 1994 Buick Century
2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."
12-28-2013, 01:38 AM
#2
That being said, 4.0s with manuals are not that common, I usually see 5 speeds beind the 2.5L 4 bangers and they have much taller gears.
This post was last modified: 12-28-2013, 01:39 AM by SurfRodder.
W123 Mods: 4 speed ** manual climate control ** '85 Kalitucky intake ** manual windows & full tint ** Euro headlights retrofit w/bixenon projectors ** 4 brake light mod ** Vogtland 50mm drop front & Lesjofors S600 drop rear springs ** 16" rims ** late w126 brake spindles, rotors & calipers ** full suspension rehab ** Bilstein HDs ** AL129X alternator & 1/0 starter and charging cables ** 300GD clutch/flywheel ** AFCO 80103N radiator & Earl's 41610 oil cooler ** custom block-off plate, remote oil filter & t-stat ** MW IP w/ tomnik's 6.5mm 'Holly' elements **
S124 Mods: 400E Rear subframe ** SL600 Brakes ** Late 300E 210mm diff ** SLK230 6 speed ** 17" CLK rims ** Vented RF Fender ** Facelift Hood, Headlights, and Lower Cladding **
OBK# 62
SurfRodder
12-28-2013, 01:38 AM #2interesting... I have owned several XJ's throughout the years. I currently have a couple of WJ (99-03ish Grand Cherokee) axle shafts (same axle as the XJ Cherokee, just longer halfs) sitting in my garage right now as well as a couple of M-B half shafts... I ill look at comparing them tomorrow and will post pics as long as I get off work early enough to feel like going out there and looking for shit.
That being said, 4.0s with manuals are not that common, I usually see 5 speeds beind the 2.5L 4 bangers and they have much taller gears.
W123 Mods: 4 speed ** manual climate control ** '85 Kalitucky intake ** manual windows & full tint ** Euro headlights retrofit w/bixenon projectors ** 4 brake light mod ** Vogtland 50mm drop front & Lesjofors S600 drop rear springs ** 16" rims ** late w126 brake spindles, rotors & calipers ** full suspension rehab ** Bilstein HDs ** AL129X alternator & 1/0 starter and charging cables ** 300GD clutch/flywheel ** AFCO 80103N radiator & Earl's 41610 oil cooler ** custom block-off plate, remote oil filter & t-stat ** MW IP w/ tomnik's 6.5mm 'Holly' elements **
S124 Mods: 400E Rear subframe ** SL600 Brakes ** Late 300E 210mm diff ** SLK230 6 speed ** 17" CLK rims ** Vented RF Fender ** Facelift Hood, Headlights, and Lower Cladding **
OBK# 62
12-28-2013, 08:53 AM
#3
(12-28-2013, 01:38 AM)SurfRodder interesting... I have owned several XJ's throughout the years. I currently have a couple of WJ (99-03ish Grand Cherokee) axle shafts (same axle as the XJ Cherokee, just longer halfs) sitting in my garage right now as well as a couple of M-B half shafts... I ill look at comparing them tomorrow and will post pics as long as I get off work early enough to feel like going out there and looking for shit.Cool! If they're from a Grand Cherokee with the Dana 35, they should have the same spline count. If they're from a Dana 44, they should have a spline count of 30. It looks like the Dana 44 came with the V8s and the Dana 35 with the I6, which makes sense.
(12-28-2013, 01:38 AM)SurfRodder That being said, 4.0s with manuals are not that common, I usually see 5 speeds beind the 2.5L 4 bangers and they have much taller gears.True. But they are common enough that I could go buy one from Craigslist tomorrow and have more than one to pick from, and certainly more common and cheaper that 6.9s and 560SECs.
Yeesh... I see your point. The closest yard with one of these cars is in PA. I guess I'll just keep looking.
This post was last modified: 12-28-2013, 09:02 AM by Jooseppi Luna.
-Jooseppi
1982 300SD -- 211k, Texas car, tranny issues
1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod
. Given to me by JB3, who got it from purplecomputer.Some blasphemous vehicles in the fleet as well -- 2004 Corolla 5-speed and 1994 Buick Century
2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."
Jooseppi Luna
12-28-2013, 08:53 AM #3(12-28-2013, 01:38 AM)SurfRodder interesting... I have owned several XJ's throughout the years. I currently have a couple of WJ (99-03ish Grand Cherokee) axle shafts (same axle as the XJ Cherokee, just longer halfs) sitting in my garage right now as well as a couple of M-B half shafts... I ill look at comparing them tomorrow and will post pics as long as I get off work early enough to feel like going out there and looking for shit.Cool! If they're from a Grand Cherokee with the Dana 35, they should have the same spline count. If they're from a Dana 44, they should have a spline count of 30. It looks like the Dana 44 came with the V8s and the Dana 35 with the I6, which makes sense.
(12-28-2013, 01:38 AM)SurfRodder That being said, 4.0s with manuals are not that common, I usually see 5 speeds beind the 2.5L 4 bangers and they have much taller gears.True. But they are common enough that I could go buy one from Craigslist tomorrow and have more than one to pick from, and certainly more common and cheaper that 6.9s and 560SECs.
Yeesh... I see your point. The closest yard with one of these cars is in PA. I guess I'll just keep looking.
-Jooseppi
1982 300SD -- 211k, Texas car, tranny issues
1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod
. Given to me by JB3, who got it from purplecomputer.Some blasphemous vehicles in the fleet as well -- 2004 Corolla 5-speed and 1994 Buick Century
2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."
12-28-2013, 09:20 AM
#4
Perhaps this could be an alternative.
'05 Jeep Liberty CRD - 160k
'06.5 VW Jetta TDI - 230k
'82 MB 300TD - 116k (motor going to raysorenson)
'81 MB 300TD - 195k (parting out)
'71 Jeep DJ5 - diesel conversion project
I don't know how helpful this is but my understanding is that all Jeep/Kaiser/AMC DJ5 Postal Jeeps (RHD RWD) came equipped with a Dana 44 LSD 3.08.
Perhaps this could be an alternative.
'05 Jeep Liberty CRD - 160k
'06.5 VW Jetta TDI - 230k
'82 MB 300TD - 116k (motor going to raysorenson)
'81 MB 300TD - 195k (parting out)
'71 Jeep DJ5 - diesel conversion project
12-28-2013, 09:25 AM
#5
(12-28-2013, 09:20 AM)CRD4x4 I don't know how helpful this is but my understanding is that all Jeep/Kaiser/AMC DJ5 Postal Jeeps (RHD RWD) came equipped with a Dana 44 LSD 3.08.
Perhaps this could be an alternative.
Interesting. Although I think that the Dana 44 was a 30-spline, that would still have the LSD goodies. Thanks for the tip.
This post was last modified: 12-28-2013, 09:27 AM by Jooseppi Luna.
-Jooseppi
1982 300SD -- 211k, Texas car, tranny issues
1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod
. Given to me by JB3, who got it from purplecomputer.Some blasphemous vehicles in the fleet as well -- 2004 Corolla 5-speed and 1994 Buick Century
2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."
Jooseppi Luna
12-28-2013, 09:25 AM #5For the record, all Dana 35 diffs were 27-spline and they came in a multitude of ratios; so if this mod works, it wouldn't be limited to the 3.07.
(12-28-2013, 09:20 AM)CRD4x4 I don't know how helpful this is but my understanding is that all Jeep/Kaiser/AMC DJ5 Postal Jeeps (RHD RWD) came equipped with a Dana 44 LSD 3.08.
Perhaps this could be an alternative.
Interesting. Although I think that the Dana 44 was a 30-spline, that would still have the LSD goodies. Thanks for the tip.
-Jooseppi
1982 300SD -- 211k, Texas car, tranny issues
1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod
. Given to me by JB3, who got it from purplecomputer.Some blasphemous vehicles in the fleet as well -- 2004 Corolla 5-speed and 1994 Buick Century
2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."
12-28-2013, 11:21 AM
#6
-Jooseppi
1982 300SD -- 211k, Texas car, tranny issues
1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod
. Given to me by JB3, who got it from purplecomputer.Some blasphemous vehicles in the fleet as well -- 2004 Corolla 5-speed and 1994 Buick Century
2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."
Jooseppi Luna
12-28-2013, 11:21 AM #6OK, extrapolating from Car-Part.com, the Wrangler 4.0 5-speed also came with Dana 35 3.07. I might look for one in Jeep circles, since those guys seem to like playing with differentials.
-Jooseppi
1982 300SD -- 211k, Texas car, tranny issues
1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod
. Given to me by JB3, who got it from purplecomputer.Some blasphemous vehicles in the fleet as well -- 2004 Corolla 5-speed and 1994 Buick Century
2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."
12-28-2013, 08:08 PM
#7
(12-28-2013, 01:38 AM)SurfRodder interesting... I have owned several XJ's throughout the years. I currently have a couple of WJ (99-03ish Grand Cherokee) axle shafts (same axle as the XJ Cherokee, just longer halfs) sitting in my garage right now as well as a couple of M-B half shafts... I ill look at comparing them tomorrow and will post pics as long as I get off work early enough to feel like going out there and looking for ****.
That being said, 4.0s with manuals are not that common, I usually see 5 speeds beind the 2.5L 4 bangers and they have much taller gears.
D35 axle shaft diameter is 1.18". D44 is 1.31".
EDIT: 1.18" = 2.9972 cm, so basically 3 cm. This is good, as I'm willing to bet the 'Benz is metric.
This post was last modified: 12-28-2013, 09:45 PM by Jooseppi Luna.
-Jooseppi
1982 300SD -- 211k, Texas car, tranny issues
1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod
. Given to me by JB3, who got it from purplecomputer.Some blasphemous vehicles in the fleet as well -- 2004 Corolla 5-speed and 1994 Buick Century
2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."
Jooseppi Luna
12-28-2013, 08:08 PM #7(12-28-2013, 01:38 AM)SurfRodder interesting... I have owned several XJ's throughout the years. I currently have a couple of WJ (99-03ish Grand Cherokee) axle shafts (same axle as the XJ Cherokee, just longer halfs) sitting in my garage right now as well as a couple of M-B half shafts... I ill look at comparing them tomorrow and will post pics as long as I get off work early enough to feel like going out there and looking for ****.
That being said, 4.0s with manuals are not that common, I usually see 5 speeds beind the 2.5L 4 bangers and they have much taller gears.
D35 axle shaft diameter is 1.18". D44 is 1.31".
EDIT: 1.18" = 2.9972 cm, so basically 3 cm. This is good, as I'm willing to bet the 'Benz is metric.
-Jooseppi
1982 300SD -- 211k, Texas car, tranny issues
1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod
. Given to me by JB3, who got it from purplecomputer.Some blasphemous vehicles in the fleet as well -- 2004 Corolla 5-speed and 1994 Buick Century
2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."
12-28-2013, 08:23 PM
#8
[/quote]
How does this compare to Merc applications?
'05 Jeep Liberty CRD - 160k
'06.5 VW Jetta TDI - 230k
'82 MB 300TD - 116k (motor going to raysorenson)
'81 MB 300TD - 195k (parting out)
'71 Jeep DJ5 - diesel conversion project
D35 axle shaft diameter is 1.18". D44 is 1.31".
[/quote]
How does this compare to Merc applications?
'05 Jeep Liberty CRD - 160k
'06.5 VW Jetta TDI - 230k
'82 MB 300TD - 116k (motor going to raysorenson)
'81 MB 300TD - 195k (parting out)
'71 Jeep DJ5 - diesel conversion project
12-28-2013, 08:33 PM
#9
(12-28-2013, 08:23 PM)CRD4x4 D35 axle shaft diameter is 1.18". D44 is 1.31".
How does this compare to Merc applications?
[/quote]
That's what I'm hoping SurfRodder can tell us.
Also, if the Mercedes and Jeep use the same tooth counts (likely), it might be possible to mash together a combination of the two gearsets to create one diff. For example, take the Jeep carrier and swap in the Mercedes gears that connect to the axles -- the little gears that are actually clutched.
This post was last modified: 12-28-2013, 08:37 PM by Jooseppi Luna.
-Jooseppi
1982 300SD -- 211k, Texas car, tranny issues
1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod
. Given to me by JB3, who got it from purplecomputer.Some blasphemous vehicles in the fleet as well -- 2004 Corolla 5-speed and 1994 Buick Century
2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."
Jooseppi Luna
12-28-2013, 08:33 PM #9(12-28-2013, 08:23 PM)CRD4x4 D35 axle shaft diameter is 1.18". D44 is 1.31".
How does this compare to Merc applications?
[/quote]
That's what I'm hoping SurfRodder can tell us.
Also, if the Mercedes and Jeep use the same tooth counts (likely), it might be possible to mash together a combination of the two gearsets to create one diff. For example, take the Jeep carrier and swap in the Mercedes gears that connect to the axles -- the little gears that are actually clutched.
-Jooseppi
1982 300SD -- 211k, Texas car, tranny issues
1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod
. Given to me by JB3, who got it from purplecomputer.Some blasphemous vehicles in the fleet as well -- 2004 Corolla 5-speed and 1994 Buick Century
2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."
12-28-2013, 10:18 PM
#10
Looking at axle pictures online, it looks like the ratio between the size of the shaft and the size of the big can that's right before the shaft is 4<4.5:1. The size of the "can" on my 'SD is right about 12.7 cm... so that sets us up for a shaft diameter right around 3 cm.
This is looking more feasible.
I'm going to try find a Dana 35 in JY and see how the carrier plays with the '84 'TD they have in there. Sheesh, if the ring gear is interchangeable between the two without any more than minor drilling (which would resolve the issue of which pinion to use), any ratio Dana 35 would do.
This post was last modified: 12-28-2013, 10:47 PM by Jooseppi Luna.
-Jooseppi
1982 300SD -- 211k, Texas car, tranny issues
1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod
. Given to me by JB3, who got it from purplecomputer.Some blasphemous vehicles in the fleet as well -- 2004 Corolla 5-speed and 1994 Buick Century
2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."
Jooseppi Luna
12-28-2013, 10:18 PM #10HOOO boy...
Looking at axle pictures online, it looks like the ratio between the size of the shaft and the size of the big can that's right before the shaft is 4<4.5:1. The size of the "can" on my 'SD is right about 12.7 cm... so that sets us up for a shaft diameter right around 3 cm.
This is looking more feasible.
I'm going to try find a Dana 35 in JY and see how the carrier plays with the '84 'TD they have in there. Sheesh, if the ring gear is interchangeable between the two without any more than minor drilling (which would resolve the issue of which pinion to use), any ratio Dana 35 would do.
-Jooseppi
1982 300SD -- 211k, Texas car, tranny issues
1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod
. Given to me by JB3, who got it from purplecomputer.Some blasphemous vehicles in the fleet as well -- 2004 Corolla 5-speed and 1994 Buick Century
2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."
12-29-2013, 01:05 AM
#11
(12-28-2013, 08:33 PM)Jooseppi LunaLooks like I have the D44 shafts (makes sense since I have the rare rear D44 in my XJ and thats where these shafts will end up if I ever get to swapping in these axles and the matching front steering & axle setup, likely be 2016 before I get to that) from a WJ GC... They measure 1.3" on my calipers.(12-28-2013, 08:23 PM)CRD4x4 D35 axle shaft diameter is 1.18". D44 is 1.31".How does this compare to Merc applications?
That's what I'm hoping SurfRodder can tell us.
I have been meaning to pull a couple of shafts from a junker to get dimensions (mainly length so I know how much to trim from the WJ shafts when the time comes. If I get around to that soon, Ill post up the other dimensions as well. That being said, if you found those numbers on pirate4x4 or a Jeep specific site, theyre likely correct.
(12-28-2013, 08:33 PM)Jooseppi Luna Also, if the Mercedes and Jeep use the same tooth counts (likely), it might be possible to mash together a combination of the two gearsets to create one diff. For example, take the Jeep carrier and swap in the Mercedes gears that connect to the axles -- the little gears that are actually clutched.This actually seems promising as well. grabbing a junker setup and prooving the concept would be awesome because then you can buy all kinds of aftermarket lockers/lim. slips...very intriguing...
This post was last modified: 12-29-2013, 01:05 AM by SurfRodder.
W123 Mods: 4 speed ** manual climate control ** '85 Kalitucky intake ** manual windows & full tint ** Euro headlights retrofit w/bixenon projectors ** 4 brake light mod ** Vogtland 50mm drop front & Lesjofors S600 drop rear springs ** 16" rims ** late w126 brake spindles, rotors & calipers ** full suspension rehab ** Bilstein HDs ** AL129X alternator & 1/0 starter and charging cables ** 300GD clutch/flywheel ** AFCO 80103N radiator & Earl's 41610 oil cooler ** custom block-off plate, remote oil filter & t-stat ** MW IP w/ tomnik's 6.5mm 'Holly' elements **
S124 Mods: 400E Rear subframe ** SL600 Brakes ** Late 300E 210mm diff ** SLK230 6 speed ** 17" CLK rims ** Vented RF Fender ** Facelift Hood, Headlights, and Lower Cladding **
OBK# 62
SurfRodder
12-29-2013, 01:05 AM #11(12-28-2013, 08:33 PM)Jooseppi LunaLooks like I have the D44 shafts (makes sense since I have the rare rear D44 in my XJ and thats where these shafts will end up if I ever get to swapping in these axles and the matching front steering & axle setup, likely be 2016 before I get to that) from a WJ GC... They measure 1.3" on my calipers.(12-28-2013, 08:23 PM)CRD4x4 D35 axle shaft diameter is 1.18". D44 is 1.31".How does this compare to Merc applications?
That's what I'm hoping SurfRodder can tell us.
I have been meaning to pull a couple of shafts from a junker to get dimensions (mainly length so I know how much to trim from the WJ shafts when the time comes. If I get around to that soon, Ill post up the other dimensions as well. That being said, if you found those numbers on pirate4x4 or a Jeep specific site, theyre likely correct.
(12-28-2013, 08:33 PM)Jooseppi Luna Also, if the Mercedes and Jeep use the same tooth counts (likely), it might be possible to mash together a combination of the two gearsets to create one diff. For example, take the Jeep carrier and swap in the Mercedes gears that connect to the axles -- the little gears that are actually clutched.This actually seems promising as well. grabbing a junker setup and prooving the concept would be awesome because then you can buy all kinds of aftermarket lockers/lim. slips...very intriguing...
W123 Mods: 4 speed ** manual climate control ** '85 Kalitucky intake ** manual windows & full tint ** Euro headlights retrofit w/bixenon projectors ** 4 brake light mod ** Vogtland 50mm drop front & Lesjofors S600 drop rear springs ** 16" rims ** late w126 brake spindles, rotors & calipers ** full suspension rehab ** Bilstein HDs ** AL129X alternator & 1/0 starter and charging cables ** 300GD clutch/flywheel ** AFCO 80103N radiator & Earl's 41610 oil cooler ** custom block-off plate, remote oil filter & t-stat ** MW IP w/ tomnik's 6.5mm 'Holly' elements **
S124 Mods: 400E Rear subframe ** SL600 Brakes ** Late 300E 210mm diff ** SLK230 6 speed ** 17" CLK rims ** Vented RF Fender ** Facelift Hood, Headlights, and Lower Cladding **
OBK# 62
12-29-2013, 11:27 AM
#12
The O.D. of the carrier bearing outer races has to be the same as the Merc races, if they're larger you have to line bore the case precisely AND machine a new select fit snap ring groove AND find a new snap ring to fit that is available in various widths.
The distance between the carrier bearing outer races has to be the same or slightly less than the same measurement on the merc carrier or you can't use the select fit snap rings to set backlash.
The ring gear has to be centered by a step in the carrier. This step has to be so close to the inner diameter of the ring gear that it is typically a loose press fit. The bolts do not center the ring gear and should not be trusted to do so.
The ring gear seating surface has to be spaced, L to R, in the same place with both carriers. You may have around .04" or so to play with as far as snap rings to move the carrier L or R to get backlash right.
The assembled carrier, ring gear and bearing cones must slip in and out of the case with the pinion gear in place. If you've ever pulled a carrier out of a merc case, you know exactly what I'm talking about. The stock stuff barely fits and it takes a minute to figure out how to position the carrier into the correct (and only) position to remove it.
Not hatin' here, just making sure you know what you're up against.
raysorenson
12-29-2013, 11:27 AM #12List of things that have to work besides axle splines if the Heep carrier is used:
The O.D. of the carrier bearing outer races has to be the same as the Merc races, if they're larger you have to line bore the case precisely AND machine a new select fit snap ring groove AND find a new snap ring to fit that is available in various widths.
The distance between the carrier bearing outer races has to be the same or slightly less than the same measurement on the merc carrier or you can't use the select fit snap rings to set backlash.
The ring gear has to be centered by a step in the carrier. This step has to be so close to the inner diameter of the ring gear that it is typically a loose press fit. The bolts do not center the ring gear and should not be trusted to do so.
The ring gear seating surface has to be spaced, L to R, in the same place with both carriers. You may have around .04" or so to play with as far as snap rings to move the carrier L or R to get backlash right.
The assembled carrier, ring gear and bearing cones must slip in and out of the case with the pinion gear in place. If you've ever pulled a carrier out of a merc case, you know exactly what I'm talking about. The stock stuff barely fits and it takes a minute to figure out how to position the carrier into the correct (and only) position to remove it.
Not hatin' here, just making sure you know what you're up against.
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