RPM's polyurethane TT couplers
Thread Starter
Melting Slicks
Joined: Feb 2003
Posts: 2,966
Likes: 22
From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11
RPM's polyurethane TT couplers
I thought I post some pictures of the RPM's polyurethane couplers while I was installing these on a 99 torque tube. These are a better option than using the billet aluminum couplers IMHO. Take a look.
Melting Slicks
Joined: Sep 2006
Posts: 2,736
Likes: 7
From: Redding CA
The poly's are definitely the way to go though in my opinion if you're all the way in there already.
I didn't realize that poly's were available and thought the only option was rubber or aluminum
Melting Slicks
Joined: Aug 2004
Posts: 2,237
Likes: 9
From: Springhill FL
Those poly's do look nice..however my OEM bushings said "made in Germany" just the same as the BMW units that went in and replaced them. lasted for 125K for me..
The poly's are definitely the way to go though in my opinion if you're all the way in there already.
I didn't realize that poly's were available and thought the only option was rubber or aluminum
The poly's are definitely the way to go though in my opinion if you're all the way in there already.
I didn't realize that poly's were available and thought the only option was rubber or aluminum
Last edited by MawneeC5; Oct 2, 2010 at 03:26 PM.
Thread Starter
Melting Slicks
Joined: Feb 2003
Posts: 2,966
Likes: 22
From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11
Yeah, this is on RPM's website under "new products". I haven't put this in the car yet but I'll post the first drive impressions when I get to drive it. Click below for the details.
RPM poly couplers
RPM poly couplers
Melting Slicks
Joined: Sep 2006
Posts: 2,736
Likes: 7
From: Redding CA
Don't get on it if you think your TT bushing are going out..
Melting Slicks
Joined: Mar 2009
Posts: 2,300
Likes: 115
From: Odessa FL
St. Jude Donor '10-'12-'13-'14-'15-'16-'17
Yeah, this is on RPM's website under "new products". I haven't put this in the car yet but I'll post the first drive impressions when I get to drive it. Click below for the details.
RPM poly couplers
RPM poly couplers
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Tech Contributor
Joined: May 2008
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From: Howell Michigan
St. Jude Donor '09-'10-'11
For the price, I would stick with stock units. For what it's worth, they are propshaft couplings, not torque tube couplings. The torque tube is the stationery tube that the propshaft and couplings rotate in.
Thread Starter
Melting Slicks
Joined: Feb 2003
Posts: 2,966
Likes: 22
From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11
Team Owner
Joined: Dec 2008
Posts: 35,874
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From: Honolulu HI
Those poly's do look nice..however my OEM bushings said "made in Germany" just the same as the BMW units that went in and replaced them. lasted for 125K for me..
The poly's are definitely the way to go though in my opinion if you're all the way in there already.
I didn't realize that poly's were available and thought the only option was rubber or aluminum
The poly's are definitely the way to go though in my opinion if you're all the way in there already.
I didn't realize that poly's were available and thought the only option was rubber or aluminum
http://www.zip-corvette.com/ProductD...L2-SR&CTitle=&
Le Mans Master
Joined: Feb 2007
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From: Oviedo Florida
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I have a set of the 10mm couplers and I think the driveshaft
kind of feels tighter. Probably the combination of the Yank
stall and the FLT tranny all combined together. I run alot
of horsepower and I am more confident with the RPM couplers
instead of the stock couplers. The price of $375 is not cheap
but you can see the quality.
kind of feels tighter. Probably the combination of the Yank
stall and the FLT tranny all combined together. I run alot
of horsepower and I am more confident with the RPM couplers
instead of the stock couplers. The price of $375 is not cheap
but you can see the quality.
Melting Slicks
Joined: Dec 2003
Posts: 3,315
Likes: 17
From: Near Jacksonville Fl.
The RPM couplers are $375.00 per pair.
FWIW, the later cars come with 12mm bolts the only difference is is the bolt and the bolt hole through the coupler.
Le Mans Master
Joined: Jul 2000
Posts: 7,638
Likes: 326
From: Greenville SC
I see, thought it was for a pair.
I thought the 12mm was the thickness of the base.
Didn't they change this due to the problems? Doesn't the larger hole disperse the stress more evenly, and makes it harder to push a large object through something (rubber) than a smaller one?
I thought the 12mm was the thickness of the base.
Didn't they change this due to the problems? Doesn't the larger hole disperse the stress more evenly, and makes it harder to push a large object through something (rubber) than a smaller one?
Tech Contributor
Joined: Jan 2007
Posts: 19,425
Likes: 1,146
From: Dyer, IN
I see, thought it was for a pair.
I thought the 12mm was the thickness of the base.
Didn't they change this due to the problems? Doesn't the larger hole disperse the stress more evenly, and makes it harder to push a large object through something (rubber) than a smaller one?
I thought the 12mm was the thickness of the base.
Didn't they change this due to the problems? Doesn't the larger hole disperse the stress more evenly, and makes it harder to push a large object through something (rubber) than a smaller one?
Le Mans Master
Joined: Jun 2002
Posts: 8,352
Likes: 103
From: In the pit, trying to love someone.
The later tubes also have a thicker shaft... 63mm VS 55 mm.