Torque tube coupler question
Thread Starter
Le Mans Master
Joined: May 2008
Posts: 5,892
Likes: 47
From: Helotes TEXAS
Torque tube coupler question
I have found several threads referring to the BMW couplers.
I'm getting ready to redo my clutch and figured I'd replace the couplers while the torque tube is out.
Which would you guys recommend, BMW or GM OEM couplers ?
Also, can a solid aluminum coupler be used at either end ?
I'm getting ready to redo my clutch and figured I'd replace the couplers while the torque tube is out.
Which would you guys recommend, BMW or GM OEM couplers ?
Also, can a solid aluminum coupler be used at either end ?
Last edited by Sinister-one; Jan 26, 2015 at 10:54 AM.
Team Owner
Joined: Sep 2001
Posts: 23,283
Likes: 906
From: Lake Elsinore, CA
Upgraded my drive shaft recently with poly and solid couplers and an LG carbon fiber drive shaft.
Stocker
Poly and sold couplers
New assembly
Poly coupler
Solid coupler
One of the stock giubos - personally, I would do new GM couplers if I were going that route.
Stocker
Poly and sold couplers
New assembly
Poly coupler
Solid coupler
One of the stock giubos - personally, I would do new GM couplers if I were going that route.
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Team Owner
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From: Lake Elsinore, CA
Team Owner
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
GM couplers FTW! 
For the type of work you're doing Ray, you'd notice a definite increase in annoying NVH if you used solids, etc..
I also look at it this way, if the (genuine) GM units are good enough for a factory ZR1, they're good enough for the vast majority of C5s, even those with some more serious mods.
HTH
Last edited by LoneStarFRC; Jan 26, 2015 at 08:54 PM.
Racer
Joined: Aug 2007
Posts: 311
Likes: 5
From: Montgomery Alabama
I have the bearings and all I just need to know the rear bearing housing diameter the part that bolts to the rear bell housing so when I go to press out the bearing I can sit it inside of a tube per say to push the shaft out , if that makes since.
http://i131.photobucket.com/albums/p...ps686109ff.jpg
http://i131.photobucket.com/albums/p...ps686109ff.jpg
Last edited by 04tripleblkcoupe; Jan 26, 2015 at 09:46 PM. Reason: added info
Team Owner
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Also, as long as your old bolts are good, I'd recommend doing a thorough job of cleaning the threads of all remnants of the thread locker. A decent wire brush along with some acetone (for dissolving the TL) works well. I'd also run a thread chaser through to clean the internal threads. Reapply some fresh TL and your good when torquing them down.
Team Owner
Joined: Sep 2001
Posts: 23,283
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From: Lake Elsinore, CA
Also, as long as your old bolts are good, I'd recommend doing a thorough job of cleaning the threads of all remnants of the thread locker. A decent wire brush along with some acetone (for dissolving the TL) works well. I'd also run a thread chaser through to clean the internal threads. Reapply some fresh TL and your good when torquing them down.
04tripleblkcoupe, sorry but the drive shaft is already back in the car so I can't measure the housing ID.
Team Owner
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
I have the bearings and all I just need to know the rear bearing housing diameter the part that bolts to the rear bell housing so when I go to press out the bearing I can sit it inside of a tube per say to push the shaft out , if that makes since.
http://i131.photobucket.com/albums/p...ps686109ff.jpg
http://i131.photobucket.com/albums/p...ps686109ff.jpg
https://www.motionindustries.com/pro...p?sku=00048573
OD = 68 mm
ID = 40 mm
Thread Starter
Le Mans Master
Joined: May 2008
Posts: 5,892
Likes: 47
From: Helotes TEXAS
Also, as long as your old bolts are good, I'd recommend doing a thorough job of cleaning the threads of all remnants of the thread locker. A decent wire brush along with some acetone (for dissolving the TL) works well. I'd also run a thread chaser through to clean the internal threads. Reapply some fresh TL and your good when torquing them down.
The coupler kits I ordered come with bolts. Should I just clean up and reuse the old one ?
Team Owner
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Pretty fair. Looks like you're continuing to have fun with your ride(s) over there in SA! I see your posts here quite frequently.
It's really dependent on the condition of your old ones. According to what he said, Patches cleaned up and reused his, and from the pix he posted I thought they were new! 
A wire wheel chucked up in an electric drill, and liberal use of acetone, really goes a long way in removing/dissolving the old thread-locker material and running a thread chaser in the female holes to ensure they're clean is also important.
Personally, I used new ones last time when I installed my DSS 3" aluminum drive shaft, as my old ones were in a sketchy state. I also installed three new bearings and oil slinger as well.
A wire wheel chucked up in an electric drill, and liberal use of acetone, really goes a long way in removing/dissolving the old thread-locker material and running a thread chaser in the female holes to ensure they're clean is also important. Personally, I used new ones last time when I installed my DSS 3" aluminum drive shaft, as my old ones were in a sketchy state. I also installed three new bearings and oil slinger as well.
Thread Starter
Le Mans Master
Joined: May 2008
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From: Helotes TEXAS
Okay heres another option question.....
Since Patches installed an aluminum coupler at the rearend section of the TT and a poly coupler at the other end........
How would a poly coupler at the rearend section of the TT and an OEM coupler at the other end work ??
Just curious.....
Since Patches installed an aluminum coupler at the rearend section of the TT and a poly coupler at the other end........
How would a poly coupler at the rearend section of the TT and an OEM coupler at the other end work ??
Just curious.....
Team Owner
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Okay heres another option question.....
Since Patches installed an aluminum coupler at the rearend section of the TT and a poly coupler at the other end........
How would a poly coupler at the rearend section of the TT and an OEM coupler at the other end work ??
Just curious.....
Since Patches installed an aluminum coupler at the rearend section of the TT and a poly coupler at the other end........
How would a poly coupler at the rearend section of the TT and an OEM coupler at the other end work ??
Just curious.....
Of course your hp levels and intended usage are obvious factors too. Also, keep in mind Ed has chosen a CF drive shaft, and this may play a part as well (torsional stiffness, etc).
It might be best for him to answer that.