STD
Flex disks. - Printable Version

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RE: Flex disks. - 95e300dez - 04-15-2013

That's what I was thinking of doing they use stainless steel flex packs on helicopters for the tail rotor drive shaft and the tail booms flex quite a bit under load. I was wondering if someone had a drawing of the bolt pattern then you could have water jet cut thin plates like .020 and then stack them on the outside of the disk to reinforce it.
(04-15-2013, 02:10 AM)Eric78 Just wondering, if someone were to sandwich the standard flex disks between steel plates would it be effective at taking extra abuse without sacrificing too much vibration dampening?


RE: Flex disks. - raysorenson - 04-15-2013

This has been done.
http://www.peachparts.com/shopforum/performance-paddock/315302-driveline-upgrades.html

RE: Flex disks. - winmutt - 04-15-2013

Based on that this should fit? http://www.summitracing.com/parts/ptp-4-1651/overview/make/chrysler/model/300

IIRC the 87 300d is 110mm. Can anyone confirm? And what the 602 used? I have a stock 603 rear sizing and a 602/190 upfront.

Anyone have a chart yet?

RE: Flex disks. - 95e300dez - 04-15-2013

That solution is not much help it really doesn't increase the strength of the flex disk it just contains it if the disck fails. I was thinking of a flex pack from a blackhawk on the outside of our rubber disk. They are thin disks layered to give the strength and durability. They also connect to both sides. blackhawk flex pack
(04-15-2013, 11:21 AM)raysorenson This has been done.
http://www.peachparts.com/shopforum/performance-paddock/315302-driveline-upgrades.html


RE: Flex disks. - Druk - 04-15-2013

(04-15-2013, 02:10 AM)Eric78 Just wondering, if someone were to sandwich the standard flex disks between steel plates would it be effective at taking extra abuse without sacrificing too much vibration dampening?

I asked the shaft makers about this before it was ordered and their reply was that the slight flex imparted by the disc might allow the spicer to run out of line slightly and cause balance issues.

BTW. Just returned from a large classic car show in Germany and noticed that W113, W108 and W111 (to name but a few) models all have spicer shafts as standard.

RE: Flex disks. - sassparilla_kid - 04-16-2013

Would a flex disc be considered a disc coupling? If so I'm using this topic for a paper for my industrial materials class

RE: Flex disks. - EDH_Performance - 04-19-2013

BMW e39 530D and E60 530D flexdiscs are 110mm and REAL beefy! Weighs twice as much as the mb 110mm discsWink

RE: Flex disks. - raysorenson - 04-19-2013

For clarity, the 110 fits the W124 stuff. Revshift makes a 110 guibo too. The W201 flex discs are 90mm.

RE: Flex disks. - winmutt - 04-19-2013

(04-19-2013, 04:49 AM)EDH_Performance BMW e39 530D and E60 530D flexdiscs are 110mm and REAL beefy! Weighs twice as much as the mb 110mm discsWink

That is invaluable information! Do you happen to know what the difference in thickness is?

RE: Flex disks. - winmutt - 04-19-2013

(04-19-2013, 02:43 PM)raysorenson For clarity, the 110 fits the W124 stuff. Revshift makes a 110 guibo too. The W201 flex discs are 90mm.

Even on the 2.6 190e?

I have a 110 in the rear and a 90 on the front IIRC. Anyone know of any cars that cross with the 90mm?

RE: Flex disks. - tjts1 - 04-19-2013

When preping for my 5 speed swap I measured the distance between the screw holes in the flex disk. The 300d was 100mm between holes, the 190e 2.6 was 80mm. I think thats how they are generally measured.

Going from memory here:
190e 2.3, 2.6 and 260e have 80mm flex disk, 25mm center support spline.
300e has 80mm flex disk, 30mm center support spline
300d turbo (87) has 100mm flex disk, 30mm center support spline

RE: Flex disks. - aaa - 04-20-2013

Isn't there a 90mm? Pretty sure the w123 and 300e had a slightly larger disk than the 190e.

RE: Flex disks. - tjts1 - 04-20-2013

(04-20-2013, 02:08 AM)aaa Isn't there a 90mm? Pretty sure the w123 and 300e had a slightly larger disk than the 190e.
Heres the 87 260e rear DS from the JY I have in my trunk right now. Measuring from the center of 1 hole to the other its precisely 80mm.
http://i.imgur.com/HoOVbae.jpg

Looking at the rockauto catalog, the 260e, 300e and 190e 2.6 use the same PN guibo flex joint.
http://www.rockauto.com/catalog/x,carcode,1193082,parttype,10701
http://www.rockauto.com/catalog/x,carcode,1193824,parttype,10701
http://www.rockauto.com/catalog/x,carcode,1192643,parttype,10701

The only difference between the 260e and 300e DS as far as I can tell is the spline where the 2 drive shafts meet and the center support.
300e and 300d is 30mm
http://www.rockauto.com/catalog/x,carcode,1193824,parttype,12743
while 260e and 190e are 25mm
http://www.rockauto.com/catalog/x,carcode,1193082,parttype,12743
http://www.rockauto.com/catalog/x,carcode,1192643,parttype,12743

So if you want to make a 190e 5spd fit in a 300d without having to modify any parts or find a rare 300e 5 speed you would use:
190e 5spd
190e front DS
260e rear DS
190e/260e/300e 80mm differential flange.

This would obviously leave you with the weaker 80mm guibos but I can live with that.

RE: Flex disks. - Druk - 04-20-2013

The standard for measuring the distance of bolts in a circle is known as the PCD or pitch circle diameter. In the US it's expressed as BCD or bolt circle dia.

http://en.wikipedia.org/wiki/Wheel_sizing#Bolt_circle

so by measuring across from one bolt center to another is giving an incorrect number as far as catalogue reference is concerned.


.

RE: Flex disks. - tjts1 - 04-20-2013

To each his own I guess. It doesn't change the fact that they use the same PN.

RE: Flex disks. - SurfRodder - 04-20-2013

(04-16-2013, 08:10 PM)sassparilla_kid Would a flex disc be considered a disc coupling? If so I'm using this topic for a paper for my industrial materials class

yes, in the roughest sense:
http://en.wikipedia.org/wiki/Disc_coupling
however, there's no "thin discs" inside the flexdisc that I can recall, just metal sleeves/bushings that are arranged around the axis of the DS and held in place by rubber...there may be a "disc" that helps retain their position, but I dont think so recalling the remnants of one Uro flexdisk I installed years ago...so I guess it would be prudent to verify with whomever is going to read/grade your paper that they agree it meets the reqs...

RE: Flex disks. - raysorenson - 04-21-2013

The 124 dimensions I quoted were taken the same way.

[Image: 1f3704e7-3cf8-4e73-8c8b-3cff55cbb399_zpsb1e46aa8.jpg]
(04-19-2013, 06:02 PM)winmutt I have a 110 in the rear and a 90 on the front IIRC. Anyone know of any cars that cross with the 90mm?

This is what I have too. I haven't found another vehicle with the 90mm BCD guibo.

RE: Flex disks. - winmutt - 08-24-2013

Found this gem (https://www.powertrainindustries.com/catalogs_type.htm?type=Rubber+Flex+Discs&PHPSESSID=gt9ptjqale9dvpslouljjfd1n0):

Rubber Flex Discs
PART NUMBER MAKE BOLT CIRCLE DIA BOLTS HOLES BOLT HOLE DIA BOLT HOLE LENGTH NOTES OE PART NUMBER
2355-10 Toyota 6 8mm ID/ 12mm OD Aluminum disc with rubber insert for Toyota Previa accessory driveshaft
2355-12 Toyota 6 8mm ID/ 14mm OD Aluminum disc with rubber insert for Toyota Previa accessory driveshaft
2755-113 BMW 76mm 8 10mm 38mm 26111106113
2755-583 BMW 105mm 6 14mm 38mm
2755-832 BMW 96mm 6 12mm 45.25mm
2755-837 BMW 96mm 6 10mm 45.25mm
2755-863 BMW 74mm 6 10mm 26.15mm
3055-40 Merkur 105mm 6 12mm 46mm
3055-961 Land Rover 96mm 6 12mm 30mm 50mm hole in center
GA000-003 Industrial 220mm 6 24.15mm
GA000-012 Industrial 120mm 6 14.09mm
GA000-012-Z1 Industrial 120mm 6 10.15/14.09mm
GA000-012-Z2 Industrial 120mm 6 10.15mm
GA000-013 Industrial 80mm 6 12.15mm
GA000-014 Industrial 106mm 6 14.09mm
GA000-014-Z1 Industrial 106mm 6 10.15/14.09mm
GA000-014-Z2 Industrial 106mm 6 10.15mm
GA000-015 Industrial 120mm 6 16.15mm
GA000-016 Industrial 120mm 6 16.15mm
GA000-017 Industrial 75mm 6 10.15mm
GA000-018 Industrial 140mm 6 16.15mm
GA000-018-Z1 Industrial 140mm 6 18.15mm
GA000-018-Z2 Industrial 140mm 6 21.9/16.15mm
GA000-019 Industrial 140mm 6 18.15mm
GA000-019-Z1 Industrial 140mm 6 16.15mm
GA000-019-Z2 Industrial 140mm 6 21.9/16.15mm
GA000-023 Industrial 80mm 6 12.15mm
GA000-024 Industrial 75mm 6 10.15mm
GA000-025 Industrial 85mm 6 10.15mm
GA000-026 Industrial 160mm 6 20.15mm
GA000-027 Industrial 180mm 6 22.15mm
GA000-028 Industrial 160mm 6 26.1mm
GA000-029 Industrial 96mm 6 12.15mm
GA000-030 Industrial 180mm 6 22.15mm
GAB-106 BMW 105mm 6 14mm 38mm 3er, 5er, 7er, 8er, Z8 26111229065
GAB-111 BMW 110mm 6 14mm 40mm 8er 26111227419
GAB-112 BMW 110mm 6 14mm 40mm 8er
GAB-73 BMW 78mm 6 12mm 32mm 1er, 3er, 5er 26111227869
GAB-74 BMW 78mm 6 12mm 32mm 3er, 5er, Z3, Z4 26111227410
GAB-82 BMW 96mm 6 12mm 35mm M3, M5, Z3, Z4 26112226527
GAB-83 BMW 96mm 6 12mm 30mm M3
GAB-84 BMW 96mm 6 12mm
GAB-87 BMW 96mm 6 12mm 30mm 3er, 5er, 7er, X3, X5, X6 26111229360
GAB01-002 BMW 105mm 6 14mm 38mm M5 26112228781
GAB01-003 BMW 110mm 6 12mm 42mm 3er, 5er, 7er, X3 21117572664
GAB01-009 BMW 78mm 6 10mm 28mm 1er, 3er, 5er, X1, Z3, Z4 26111225624
GAB01-015 BMW 78mm 6 10mm 28mm X5, X6, 325xi, 330xi 26117503159
GAB01-016 BMW 105mm 6 10mm 35.50mm 3er, 5er, 6er, 7er, X1 26117573276
GAB01-017 BMW 96mm 6 12mm 30mm X3, X5, X6, 3er, 5er, 7er 26117511454, 26112226842
GAB01-020 BMW 105mm 6 12mm 41.5mm 3er, 5er, 6er, 7er 26117518443
GAB01-021 BMW 96mm 6 10mm 33.5mm 1er, 3er, 5er, X1
GAB01-023 BMW 96mm 6 12mm 32mm 5er, 6er
GAB01-024 BMW 110mm 6 12mm M3, M5, M6 26112282573
GAB01-026 BMW 110mm 6 12mm 38.5mm 1er, 5er, 6er, 7er
GAB01-027 BMW 110mm 6 12mm 42mm 1er, 3er, 5er, 6er, 7er, X3
GAB01-028 BMW 105mm 6 12mm 41.5mm 1er, 3er, 5er, 6er, 7er, X1, Z4
GAC02-001 Chrysler 100mm 6 12mm 32mm 5127289AA
GAC02-002 Chrysler 110mm 6 12mm 35mm 5127291AA, 5144110115
GAC02-004 Multiple 110mm 6 12mm 38mm
GAC02-008 Mercedes 100mm 6 12mm 35mm
GAD-110 Mercedes 80mm 6 10mm 26mm 190er, 200er, 250er, 300er, C 180, C 200, C 220, E 200, E 220, E 300 2024101015
GAD-110-AZ Mercedes 80mm 6 10mm 26/33.65mm 190er, 200er, 250er, C 200, C 220, E 200, E 220 2024101215
GAD-129 Mercedes 90mm 6 10mm 28.5mm 190er, 200er, 220er, 230er, 250er, 260er, 300er, C 180, C 200, C 220, C 230, C 240, C 250, CLK 200, E 200, E 220, E 230, E 240, E 250, E 280, E 300, E320, SLK 200 2024101315
GAD-129-AZ Mercedes 90mm 6 10mm 28.5/36.5mm
GAD-134 Mercedes 110mm 6 12mm 35mm 400er, 420er, 500er, C 43, CLK 430, E 50, E 55, E 300, E 420, E 430, S 300, S 420, S 430, S 500, SL 500 2304100115, 1404100415, 2104100615
GAD-134-AZ Mercedes 110mm 6 12mm 35/43mm 400er, 500er, E 270, E 320, S 300, S 420, S 500 1404100315
GAD-135 Mercedes 100mm 6 12mm 30mm 280er, 300er, C 36, C 200, C 220, C 230, C 250, C 280, CLK 200, CLK 230, CLK 320, E 280, E 290, E 320, S 280, S 320, SL 280, SL 320 1294100015, 2104100815
GAD-136 Mercedes 100mm 6 12mm 32mm C 36, C 180, C 200, C 220, C 230, C 240, C 250, C 280, C 300, C 320, C 350, CLK 200, CLK 230, CLK 240, CLK 280, CLK 320, E 200, E 220, E 240, E 250, E 280, E 320, E 430, GLK 250, GLK 280, GLK 320, S 280, S 320, S 500, SL 280, SLK 200, SLK 230
GAD-136-AZ Mercedes 100mm 6 12mm 32/40mm C 200, C 230, C 240, C 320, CLK 240, E 200, E 220, E 250, E 280, E 320, S 350, SL 280
GAD-138 Mercedes 110mm 8 12mm 30mm 300er, 420er, 600er, S 420, S 500, S 600, SL 600 1294100115
GAD-138-AZ Mercedes 110mm 8 12mm 30/38mm 300er, S 350, S 400
GAD-139 Mercedes 100mm 6 12mm 30mm 280er, 300er, C 36, C 200, C 220, C 230, C 250, C 280, CLK 200, CLK 230, CLK 320, E 280, E 290, E 320, S 280, S 320, SL 280, SL 320 2104100816, 1704100015, 2104100815
GAD-139-AZ Mercedes 100mm 6 12mm 30/38mm
GAD-141 Mercedes 90mm 6 10mm 37.4/34mm 190er, 200er, 220er, 230er, 240er, 250er, 260er, 280er, 300er, E 200, E 220, E 250, E 300 1244100615
GAD-142 Mercedes 90mm 6 10mm 36.5mm C 200, C 220, CLK 200, E 220, E 240, E 250, SLK 200
GAD-142-AZ Mercedes 90mm 6 10mm 36.5/44.5mm C 200, C 220, CLK 200, E 200, E 220, E 230, E 240, SLK 200
GAD-145 Mercedes 80mm 6 10mm 36.5mm C 180, C 200, C 220, E 200, E 220
GAD-145-AZ Mercedes 80mm 6 10mm 36.5/44.5mm C 180, C 200, C 220, E 200, E 220
GAD-156 Mercedes 100mm 6 12mm 36/40mm 280er, 300er, C 200, C 230, C 250, CLK 200, CLK 230, E 200, E 280, S 280, S 320, SL 280 1244110515, 1294100215, 2104101115, 1244100815
GAD-156-AZ Mercedes 100mm 6 12mm 36/48mm 280er, 300er, C 200, C 230, C 250, CLK 200, CLK 230, E 200, E 280, S 280, S 320, SL 281
GAD01-003 Mercedes 90mm 6 10mm 32mm C 240, C 320
GAD01-005 Mercedes 120mm 8 12mm 36mm C 240, C 320, S63, S65, S 320, S 350, S 420, S 450, S 500, S 600
GAD01-010 Mercedes 110mm 6 12mm 35mm C 32, C 220, C 270, C 320, C 350, CL 500, CLC 220, CLK 270, CLK 320, CLK 350, CLK 500, E 350, GL 320, GL 350, GL 420, GL 450, GL 550, ML 63, ML 250, ML 280, ML 300, ML 320, ML 350, ML 420, ML 450, ML 500, R 63, R 280, R 300, R 320, R 350, R 500, R 5
GAD01-010-Z Mercedes 110mm 6 12mm 35/43mm
GAD01-017 Mercedes 110mm 8 12mm C 30, C 55, S 500
GAD01-019 Mercedes 100mm 6 12mm SLK 200, SLK 280, SLK 300
GAD01-020 Mercedes 110mm 6 12mm
GAD03-001 Mercedes 110mm 6 12mm
GAD03-001-Z Mercedes 110mm 6 12mm
GAF-21 Ford 100mm 6 12mm 38.5mm
GAF-30 Ford 96mm 6 12mm Scorpio
GAF-41 Ford 96mm 6 12mm 30mm Escort, Granada, Sierra, Scorpio, Transit
GAF-42 Ford 96mm 6 12mm 32mm
GAF-43 Ford 96mm 6 12mm 30mm Scorpio
GAF01-001 Ford 105mm 6 12mm
GAF01-002 Ford 120mm 6 14mm 43.5mm
GAF01-003 Ford 105mm 6 12mm 35mm Transit
GAF02-002 Industrial 200mm 6 24mm
GAG-1 96mm 6 12mm 30mm
GAG03-001 105mm 6 12mm 35mm
GAG03-004 80mm 6 10mm
GAG03-007 Cadillac 105mm 6 12mm 35mm CTS, SRX, Camaro V6
GAH04-001 Hyundai 78mm 6 12mm 32mm Santa FE, Tucson, Sportage
GAH04-002 Hyundai 96mm 6 12mm 30mm Starex
GAH04-003 Hyundai 90mm 6 10mm 32mm Santa FE, Veracruz
GAH04-005 Hyundai 105mm 6 12mm 35mm Genesis
GAI-1 61mm 4 8.5mm 15mm
GAJ-1 96mm 6 12mm 35mm
GAO-12 Opel 96mm 6 10mm 30mm
GAO-13 Opel 96mm 6 12mm 30mm
GAO-14 Opel 96mm 6 12mm
GAO-15 Opel 78mm 6 10mm 28mm Omega, Carlton
GAO-21 Opel 96mm 6 12mm 30mm
GAO-54 Opel 52mm 4 8.5mm 12mm
GAO-60 GM 50mm 4 8mm 12.5mm
GAO01-001 Opel 96mm 6 12mm 30mm Omega, Monza, Rekord, Senator, Carlton
GAP01-002 Porsche 78mm 6 10mm 23mm
GAP01-003 Multiple 110mm 6 12mm 38mm Cayenne, Camaro V8 2153131800009, 7L0521403
GAR01-001 Rolls Royce 110mm 6 12mm 38.5mm Phantom, Ghost, 7er
GAR02-001 Rolls Royce 96mm 6 12mm 30mm
GAR03-001 Multiple 80mm 6 10mm 28.5mm
GAR03-002 Chrysler 80mm 6 10mm 28.5mm Pacifica
GAR03-003 Rolls Royce 80mm 6 10mm 36.5mm
GAS04-001 78mm 6 10mm 28mm
GAU01-001 Pontiac 96mm 6 12mm 35mm GTO 92148358
GAU01-002 100mm 6 12mm 40mm
GAU01-005 Cadillac 96mm 6 12mm 30mm CTS
GAU01-006 GM 78mm 6 12mm 32mm Corvette
GAU01-008 Cadillac 96mm 6 12mm 38mm CTS
GAU01-011 96mm 6 12mm 30mm
GAU01-012 Pontiac 110mm 6 12mm 38.50mm GTO 92255734
GAV-22Z VW 96mm 6 21mm
GAV-23Z VW 96mm 6 21mm Rallye Golf, Golf, Passat, Jetta
GAV-26 VW 96mm 6 10/21mm 25/29mm
GAV-28 VW 96mm 6 10mm 34mm
GAV-28Z VW 96mm 6 10mm A3, S3, Octavia, Bora, Golf, Sharan
GAV01-001 VW 120mm 6 10mm 23mm Steel shield, 3 holes threaded, Transporter T4
GAV01-003 VW 105mm 6 10mm 26mm Steel shield, A3, TT, S3, Leon, Altea, Octavia, Golf, Bora, Caddy, Passat, New Beetle
GAV01-004 VW 96mm 6 10mm 32mm Alhambra, Sharan
GAV01-006 VW 60mm 6 7mm
GAV01-007-Z VW 105mm 6 10mm 30mm Steel shield
GD-190 BMW 50mm 4
GD-268 BMW 50mm 4 8mm
GD-60 BMW 50mm 4 8mm
GD-64 BMW 96mm 6 12mm 30mm 5er, 6er, 7er, M535, Z4 26111109603
GD-72 BMW 78mm 6 10mm
GD-90 BMW 50mm 4 8mm 20mm 3er
GF-6S 48.5mm 4 8mm 20mm
GLD01-004 Mercedes 50mm 4 9mm
GLD01-007 Mercedes 52mm 4 9mm
GLV-103 66mm 4 12mm
GLV03-001 56mm 4 9mm
GLX-68 BMW 50mm 4 10mm 13mm 3er, 5er, 6er, 7er, 8er, M5, M535, M635, Z1
GN-102 Mercedes Benz 61mm 4 8mm 11mm
GN-120 Mercedes Benz 90mm 6 14mm 23mm 190er, 200er, 220er, 230er, 250er, 280er, 300er 1084100115
GN-126 Mercedes Benz 90mm 6 10mm 26mm 200er, 220er, 230er, 240er, 250er, 280er, 300er 1234100015, 1084100115
GN-128 Mercedes Benz 90mm 6 10mm 26mm 190er, 220er, 230er, 240er, 250er, 280er, 300er, 350er, 380er, C 180, C 200, C 220, C 230, C 240, CLK 200, E 220, E 250, SLK 200 1264100215
GN-132 Mercedes Benz 110mm 6 12mm 26mm 300er, 350er, 380er, 420er, 450er, 500er, 560er, E 300 1264100415
GN-140 Mercedes Benz 90mm 6 10mm 29 mm 250er, 280er 1264100115
GN-145 Mercedes Benz 80mm 6 10mm 29/40mm 190er, 200er, 250er, E 200
GN-146 Mercedes Benz 80mm 6 10mm 29/38 mm 190er, 100er, E 200
GPD-3 VW 50mm 4 8mm 12.5mm Transporter T3
GPD-3-1 50mm 4 8mm
GT-15 Fiat 61mm 4 8mm 14.5mm
GUK-2 50mm 4 8mm
S33L Industrial 200mm 6 24mm
S34 Industrial 220mm 6 24.15mm
S43L Industrial 261.3mm 8 24mm
S53L Industrial 323.6mm 10 24mm
S63L Industrial 386.4mm 12 24mm
S73L Industrial 449.4mm 14 24mm
S83L Industrial 512.6mm 16 24mm
S93L Industrial 575.9mm 18 24mm
TTR03-003 78mm 3 12.5mm Dampner only
TTV01-003 96mm 6 10mm 35mm Has GAV-26 inside of steel dampner
TTV01-004 96mm 6 10.85mm 40mm Has GAV01-008 inside of steel dampner

RE: Flex disks. - winmutt - 08-26-2013

80mm "hard" flexdisk kit part # is 202 410 10 15

RE: Flex disks. - SurfRodder - 09-01-2013

edit: sorry for the Juggernaut of a post...but lots of good info compiled in one place...

So I called RevShift on Friday and spoke with a guy named John that verified the measurements of their 110mm E46 flex disc here:
https://www.revshift.com/shop/revshift-flex-disc-lk-110mm/12mm-.php

He measured one he had available as being 33mm thick at face to face and 35mm bushing "length" i.e. the bushings stick out about 2mm from the face of the disc (to be clear he used 1.3" and 1&3/8" and I converted that to metric). If these measurments are correct, these bushings then stick out about 0.5mm less than the stock M-B flex discs that I measured...more likely they are the same and the slight differences between measurements, etc. 0.5mm is not a whole lot at any rate.

I measured my '87 300D discs (Jurid brand with part # 126 411 0215, in case anyone cares) at 110mm BCD, 12mm bolt holes (bushing ID) 18mm bushing OD and 23.5mm thick with 26mm long bushings.

With my 5-speed swap and 400E rear subframe/late 300E 2.65:1 diff, I have installed the front half of a w126 560SE(L) and the stock 300D rear shaft (also swapped in a w126 diff input flange to mate up with larger BCD pattern shaft). I had to rig in a cobbled together Center Support Bearing/bushing (CSB) from 2 donors to get me going in the interim while I decide how to proceed. My setup BARELY fits between the output of the 5 speed and the input of the diff (real pain to R&R, i.e. virtually no play, maybe 1-2mm fore to aft).

I have measured the rear (stock 300D w124) shaft to be 31" from the front of the "knuckle" on the shaft side of the Universal joint to the aft end of the 3 prong mating surface, and that the CSB placement with my (somewhat rare) setup appears to be about 1&3/8" too far forward (CSB wants to ride 1.375" too far forward) to mount properly. So if I wanted to maintain the same no play situation in the shaft, I would need about a 29&5/8" long shaft, but since I would like about 1" of play(nt to mention "proper" CSB placement), I am considering using a late model 300E (1993+ IIRC) rear shaft which measures 28.125 using the same measurement points as above. But it has the smaller 100mm pattern BCD.

So, I am now looking into using one of the above E46 revshift flexdiscs to push the front half back about 10mm (3/8"), plus the rear shaft from the later big diff 300e which should give me pretty close to what I need. Now, if I can only find a flex disc that is about the same (or perhaps 1/8-1/4" thicker) as stock on the revshift(or similar) website I will be golden(as long as the diff input flanges are of compareable installed length).

For reference, the 300e flexdisk (Stock M-B marked with part # 210 411 0515) that I have is 100mm BCD with 12mm bushing ID and 18mm bushing OD, 27.5mm thick disc and 30mm long bushings.

So, using Rolf's "gem" (GREAT resource BTW, I esp. appreciate the ability to sort by various dimensions like BCD) above, I found these:

2009-2010 Chrysler 300
Chrysler/Mopar P/N: 5127289AA
https://www.powertrainindustries.com/story/GAC02-001?PHPSESSID=s9bd1eso0ia768p7heo3so85h0
or on ebay using the referenced part#: http://www.ebay.ca/itm/NEW-DRIVESHAFT-COUPLING-OEM-5127289AA-/161018792426

and:
"Mercedes" no models listed: 100mm BCD with 35mm bolt hole (bushing) length
https://www.powertrainindustries.com/story/GAC02-008
P/N cross reference: 1294100015, 2104100815

and:
Mercedes NOTES = 280er, 300er, C 36, C 200, C 220, C 230, C 250, C 280, CLK 200, CLK 230, CLK 320, E 280, E 290, E 320, S 280, S 320, SL 280, SL 320,
100mm BCD with 30mm bushing length
P/N cross reference: 1294100015, 2104100815
https://www.powertrainindustries.com/catalogs_type.htm?type=Rubber%20Flex%20Discs&filter_string=&filter_key=part_number&filter_val=GAD-135

and:
Mercedes NOTES = C 36, C 180, C 200, C 220, C 230, C 240, C 250, C 280, C 300, C 320, C 350, CLK 200, CLK 230, CLK 240, CLK 280, CLK 320, E 200, E 220, E 240, E 250, E 280, E 320, E 430, GLK 250, GLK 280, GLK 320, S 280, S 320, S 500, SL 280, SLK 200, SLK 230,
100mm BCD with 32mm bushing length
P/N cross reference: 1294100015, 2104100815
https://www.powertrainindustries.com/catalogs_type.htm?type=Rubber%20Flex%20Discs&filter_string=&filter_key=part_number&filter_val=GAD-136

and:
Mercedes NOTES = C 200, C 230, C 240, C 320, CLK 240, E 200, E 220, E 250, E 280, E 320, S 350, SL 280,
100mm BCD with 32/40mm bushing length
P/N cross reference: 1294100015, 2104100815
https://www.powertrainindustries.com/catalogs_type.htm?type=Rubber%20Flex%20Discs&filter_string=&filter_key=part_number&filter_val=GAD-136-AZ

and:
Mercedes NOTES = 280er, 300er, C 36, C 200, C 220, C 230, C 250, C 280, CLK 200, CLK 230, CLK 320, E 280, E 290, E 320, S 280, S 320, SL 280, SL 320,
100mm BCD with 30mm bushing length
P/N cross reference: 2104100816, 1704100015, 2104100815
https://www.powertrainindustries.com/catalogs_type.htm?type=Rubber%20Flex%20Discs&filter_string=&filter_key=part_number&filter_val=GAD-139

and:
Mercedes same models as previous most likely, thickness difference due either to different trans or use of 1 vs 2 flexdiscs (or both?!?!)
100mm BCD with 30/38mm
https://www.powertrainindustries.com/catalogs_type.htm?type=Rubber%20Flex%20Discs&filter_string=&filter_key=part_number&filter_val=GAD-139-AZ

and:
Mercedes NOTES = 280er, 300er, C 200, C 230, C 250, CLK 200, CLK 230, E 200, E 280, S 280, S 320, SL 280
100mm BCD with 36/40mm bushing length
P/N cross reference: 1244110515, 1294100215, 2104101115, 1244100815
https://www.powertrainindustries.com/catalogs_type.htm?type=Rubber%20Flex%20Discs&filter_string=&filter_key=part_number&filter_val=GAD-156

and:
Mercedes same as previous but with 36/48mm bushing length
https://www.powertrainindustries.com/catalogs_type.htm?type=Rubber%20Flex%20Discs&filter_string=&filter_key=part_number&filter_val=GAD-156-AZ

and:
Mercedes SLK 200, SLK 280, SLK 300
100mm BCD with ?? bushing length
https://www.powertrainindustries.com/catalogs_type.htm?type=Rubber%20Flex%20Discs&filter_string=&filter_key=part_number&filter_val=GAD01-019

and:
Ford?? Mustang maybe??
100mm BCD with 38.5mm bushing length
https://www.powertrainindustries.com/catalogs_type.htm?type=Rubber%20Flex%20Discs&filter_string=&filter_key=part_number&filter_val=GAF-21

and:
Ford again
with 40mm long bushings
https://www.powertrainindustries.com/catalogs_type.htm?type=Rubber%20Flex%20Discs&filter_string=&filter_key=part_number&filter_val=GAU01-002


Note: all the above parts utilize the same 12mm bolt hole diameter as M-B uses (unclear as to whether or not the OD is the same, but it likely is).

I was going to order 2 of their e46 discs on Friday and have a aft section from a w126 560SEL cut down and balanced to use all the same size BCD but now I am considering using the larger Revshift flex disk for the front half and maybe trying to get them to make up some of the above (like the 8th one from the top, 7th M-B one listed; i.e. this one: https://www.powertrainindustries.com/catalogs_type.htm?type=Rubber%20Flex%20Discs&filter_string=&filter_key=part_number&filter_val=GAD-156) discs but in 30-33mm. I'd much prefer to have one of their discs in the rear as well(even moreso with the smaller BCD), and the specified thickness is about 3/8" thicker than a stock w124 300D disc, so I SHOULD therefore have about 3/4" of play in the splined section (3/8 "longer" front shaft, with 3/8" plus 28&1/8 rear shaft gives me a 28&7/8" effective rear shaft length vs. the 29&5/8" needed to keep the thing the same total lenght it is now, i.e too long) so that should be close the ideal setup for me.

You guys are gonna have to do the math for your particular setups, but a 30-33mm thick disc should provide a good fit for most, on the shorter side would work best for me (and most likely you guys too).

At any rate, Im posting this to see what kind of interest there is in these to see what we can work out with them for perhaps a 100mm BCD on a 30mm (or 33mm if that thick disc, if that is some sort of standard stock size for them bushing wise) I am assuming they would want several orders up front to make a new product.

RE: Flex disks. - maxypriest - 09-02-2013

Druk - That is superb.

RE: Flex disks. - EmJay - 09-06-2013

What I was wondering is if it would be possible to make an adapter to bolt onto the flex disc that would allow for a u-joint setup? This would allow for a single piece drive shaft, something easier to balance. Perfect for bastard swaps.

RE: Flex disks. - Druk - 09-07-2013

(09-06-2013, 11:28 PM)EmJay What I was wondering is if it would be possible to make an adapter to bolt onto the flex disc that would allow for a u-joint setup? This would allow for a single piece drive shaft, something easier to balance. Perfect for bastard swaps.


Refer back to posts #35 and #39.

As a follow-up the car's now been on the road for 2 months or so and done maybe 3000miles. There's no perceptible difference in driving with a steel shaft as against a flexy one. My system for the speedo also works well with readings comparing to a TomTom of max 2mph difference.

RE: Flex disks. - raysorenson - 09-07-2013

Druk, I would be a fool not to ask if you would share the cad/cam file for the adapter. :-)

RE: Flex disks. - EmJay - 09-08-2013

i sent him a pm asking the very same thing!

RE: Flex disks. - Druk - 09-08-2013

(09-08-2013, 12:54 PM)EmJay i sent him a pm asking the very same thing!

I replied to you on email. Did you receive that?

RE: Flex disks. - EmJay - 09-08-2013

Never got the email from you Druk, I sent you my email address to you in a new PM, I didn't know which address you tried to send it to.