STD Tuning Drivetrain Tail yoke interchangeable across all the transmissions?

Tail yoke interchangeable across all the transmissions?

Tail yoke interchangeable across all the transmissions?

 
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winmutt
bitbanger

3,468
08-26-2013, 07:18 AM #1
I've found out that the PO of my transmission stuck a 80mm flexdisk on a smaller yoke. Minimally I'd like to get an 80mm yoke on there, ideally I'd like to swap the 110m? yoke from a 87 300d on there. Is the output shaft the same across all these trans?

Can I pull the yoke with trans in car (at the junkyard?).

1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42
winmutt
08-26-2013, 07:18 AM #1

I've found out that the PO of my transmission stuck a 80mm flexdisk on a smaller yoke. Minimally I'd like to get an 80mm yoke on there, ideally I'd like to swap the 110m? yoke from a 87 300d on there. Is the output shaft the same across all these trans?

Can I pull the yoke with trans in car (at the junkyard?).


1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42

winmutt
bitbanger

3,468
08-26-2013, 07:25 AM #2
I dont get it. I put an 80mm on there and it was too big. The yoke ears on the trans are bent back, maybe thats the only problem. So confusing...

1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42
winmutt
08-26-2013, 07:25 AM #2

I dont get it. I put an 80mm on there and it was too big. The yoke ears on the trans are bent back, maybe thats the only problem. So confusing...


1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42

aaa
GT2256V

913
08-26-2013, 11:50 PM #3
I don't think the 110mm will fit on a manual trans, the place where the rear mount bolts on gets in the way. On the w202 the tailhousing and rear mount are different, allowing for a larger yoke size.
aaa
08-26-2013, 11:50 PM #3

I don't think the 110mm will fit on a manual trans, the place where the rear mount bolts on gets in the way. On the w202 the tailhousing and rear mount are different, allowing for a larger yoke size.

SurfRodder
Jackass Extraordinaire

611
09-03-2013, 01:51 AM #4
^^this, I had to hack the hell outta my case to make the 110mm fit. I'll post pics later when I'm on the big machine.

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
09-03-2013, 01:51 AM #4

^^this, I had to hack the hell outta my case to make the 110mm fit. I'll post pics later when I'm on the big machine.


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

Greazzer
Superturbo

1,278
09-03-2013, 06:22 AM #5
Howdy,

I got one. I will post some pictures and take some measurements this evening.

Ninth Year Anniversary with STD on 1-9-2020

visit:  www.dieselfuelinjector.guru

Project 2018: Really get the car finished -- Turbo OM617 greater than 175 MPH goal.

RED W123 - left Germany as 240D in 1982.  Full AMG body kit less rear apron, 2:65LSD, five speed Getrag 717.400, manual steering, read leather interior, manual brake conversion, electric water pump (EWP), and a bunch of other goodies ...
Greazzer
09-03-2013, 06:22 AM #5

Howdy,

I got one. I will post some pictures and take some measurements this evening.


Ninth Year Anniversary with STD on 1-9-2020

visit:  www.dieselfuelinjector.guru

Project 2018: Really get the car finished -- Turbo OM617 greater than 175 MPH goal.

RED W123 - left Germany as 240D in 1982.  Full AMG body kit less rear apron, 2:65LSD, five speed Getrag 717.400, manual steering, read leather interior, manual brake conversion, electric water pump (EWP), and a bunch of other goodies ...

winmutt
bitbanger

3,468
09-03-2013, 08:50 AM #6
(09-03-2013, 06:22 AM)Greazzer Howdy,

I got one. I will post some pictures and take some measurements this evening.

You have an 80mm yoke?

1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42
winmutt
09-03-2013, 08:50 AM #6

(09-03-2013, 06:22 AM)Greazzer Howdy,

I got one. I will post some pictures and take some measurements this evening.

You have an 80mm yoke?


1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42

Greazzer
Superturbo

1,278
09-03-2013, 11:58 AM #7
I will take some pictures and measure it. Maybe I'm wrong. I will post pictures of the mic's results also.

Ninth Year Anniversary with STD on 1-9-2020

visit:  www.dieselfuelinjector.guru

Project 2018: Really get the car finished -- Turbo OM617 greater than 175 MPH goal.

RED W123 - left Germany as 240D in 1982.  Full AMG body kit less rear apron, 2:65LSD, five speed Getrag 717.400, manual steering, read leather interior, manual brake conversion, electric water pump (EWP), and a bunch of other goodies ...
Greazzer
09-03-2013, 11:58 AM #7

I will take some pictures and measure it. Maybe I'm wrong. I will post pictures of the mic's results also.


Ninth Year Anniversary with STD on 1-9-2020

visit:  www.dieselfuelinjector.guru

Project 2018: Really get the car finished -- Turbo OM617 greater than 175 MPH goal.

RED W123 - left Germany as 240D in 1982.  Full AMG body kit less rear apron, 2:65LSD, five speed Getrag 717.400, manual steering, read leather interior, manual brake conversion, electric water pump (EWP), and a bunch of other goodies ...

winmutt
bitbanger

3,468
09-03-2013, 12:03 PM #8
Whats it off of or where is it from? Any chance it has the flex disk on it (easiest way to measure).

1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42
winmutt
09-03-2013, 12:03 PM #8

Whats it off of or where is it from? Any chance it has the flex disk on it (easiest way to measure).


1987 300D Sturmmachine
1991 300D Nearly Perfect
1985 300D Weekend/Camping/Dog car
1974 L508D Motoroam Monarch "NightMare"
OBK #42

Greazzer
Superturbo

1,278
09-03-2013, 03:15 PM #9
Rolf,

I am thinking I got a different / wrong part. Here are 2 pictures. It's 80mm on center of each hole on each dogear.

If its the wrong part, my bad.
Attached Files
Image(s)
       

Ninth Year Anniversary with STD on 1-9-2020

visit:  www.dieselfuelinjector.guru

Project 2018: Really get the car finished -- Turbo OM617 greater than 175 MPH goal.

RED W123 - left Germany as 240D in 1982.  Full AMG body kit less rear apron, 2:65LSD, five speed Getrag 717.400, manual steering, read leather interior, manual brake conversion, electric water pump (EWP), and a bunch of other goodies ...
Greazzer
09-03-2013, 03:15 PM #9

Rolf,

I am thinking I got a different / wrong part. Here are 2 pictures. It's 80mm on center of each hole on each dogear.

If its the wrong part, my bad.

Attached Files
Image(s)
       

Ninth Year Anniversary with STD on 1-9-2020

visit:  www.dieselfuelinjector.guru

Project 2018: Really get the car finished -- Turbo OM617 greater than 175 MPH goal.

RED W123 - left Germany as 240D in 1982.  Full AMG body kit less rear apron, 2:65LSD, five speed Getrag 717.400, manual steering, read leather interior, manual brake conversion, electric water pump (EWP), and a bunch of other goodies ...

SurfRodder
Jackass Extraordinaire

611
09-03-2013, 11:11 PM #10
(09-03-2013, 03:15 PM)Greazzer It's 80mm on center of each hole on each dogear.

The usual measurement is from center of one bolt hole to the center of the opposite side (i.e. 180* apart...when all six fasteners are present, as in looking at the flexdisc which is why Rolf suggested that) I usually take a flexdisc and tighten two bolts down (with washers/spacers as necessary...which I didn't do in the first pic below so my reading is off my 1mm) and then turn the bolt heads so the outside "flats" are parallel to each other. Then when you measure the distance from the outside flat of each bolt head to the outside flat of the opposite one and subtract the size of the (one) bolt head from the total measurement, you have the center to center hole distance.

   
   
So in the above example I take 128mm (or 129 because I know what its supposed to be when torqued down properly) and subtract 19mm from that to get 109mm (or the actual value of 110mm when everything is tight).

Now you CAN use the measurements that you took and use some slightly fancy math figure out the actual Bolt Circle Diameter (BCD). But Im a little too toasty to attempt that right now (13 hours days are taking their toll on me). Knowing that the measurements you have are taken 120* apart means that you basically measured one side of a triangle with 80mm sides. Then you gotta determine the smallest circle that triangle will fit into to translate that into BCD. Anyway, much easier to just measure the flex disc.

nice caliper by the way...
This post was last modified: 09-03-2013, 11:18 PM 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
09-03-2013, 11:11 PM #10

(09-03-2013, 03:15 PM)Greazzer It's 80mm on center of each hole on each dogear.

The usual measurement is from center of one bolt hole to the center of the opposite side (i.e. 180* apart...when all six fasteners are present, as in looking at the flexdisc which is why Rolf suggested that) I usually take a flexdisc and tighten two bolts down (with washers/spacers as necessary...which I didn't do in the first pic below so my reading is off my 1mm) and then turn the bolt heads so the outside "flats" are parallel to each other. Then when you measure the distance from the outside flat of each bolt head to the outside flat of the opposite one and subtract the size of the (one) bolt head from the total measurement, you have the center to center hole distance.

   
   
So in the above example I take 128mm (or 129 because I know what its supposed to be when torqued down properly) and subtract 19mm from that to get 109mm (or the actual value of 110mm when everything is tight).

Now you CAN use the measurements that you took and use some slightly fancy math figure out the actual Bolt Circle Diameter (BCD). But Im a little too toasty to attempt that right now (13 hours days are taking their toll on me). Knowing that the measurements you have are taken 120* apart means that you basically measured one side of a triangle with 80mm sides. Then you gotta determine the smallest circle that triangle will fit into to translate that into BCD. Anyway, much easier to just measure the flex disc.

nice caliper by the way...


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

Greazzer
Superturbo

1,278
09-04-2013, 06:03 AM #11
Let me track down a flex disk. I am thinking my math was never up to par ... LOL ...

I am thinking is then probably the wrong part ... my bad.

Ninth Year Anniversary with STD on 1-9-2020

visit:  www.dieselfuelinjector.guru

Project 2018: Really get the car finished -- Turbo OM617 greater than 175 MPH goal.

RED W123 - left Germany as 240D in 1982.  Full AMG body kit less rear apron, 2:65LSD, five speed Getrag 717.400, manual steering, read leather interior, manual brake conversion, electric water pump (EWP), and a bunch of other goodies ...
Greazzer
09-04-2013, 06:03 AM #11

Let me track down a flex disk. I am thinking my math was never up to par ... LOL ...

I am thinking is then probably the wrong part ... my bad.


Ninth Year Anniversary with STD on 1-9-2020

visit:  www.dieselfuelinjector.guru

Project 2018: Really get the car finished -- Turbo OM617 greater than 175 MPH goal.

RED W123 - left Germany as 240D in 1982.  Full AMG body kit less rear apron, 2:65LSD, five speed Getrag 717.400, manual steering, read leather interior, manual brake conversion, electric water pump (EWP), and a bunch of other goodies ...

 
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