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RPM's polyurethane TT couplers

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Old Oct 3, 2010 | 08:36 PM
  #21  
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Originally Posted by 95wht6spd
base = (Rubber ring the metal tubes are in)
Then that's not really possible is it? 12mm is less than 1/2 inch, and the bushing clearly is thicker than that......
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Old Oct 3, 2010 | 10:25 PM
  #22  
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Originally Posted by MTPZ06
These have been around for a while, but I haven't seen any feedback...

http://www.zip-corvette.com/ProductD...L2-SR&CTitle=&
You have now. I have the 12mm Six Shooters installed (2). Approx. 2100 miles on them. No NVH issues at all. Time will tell of course. Got mine from Summit before they raised their prices.
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Old Oct 3, 2010 | 10:27 PM
  #23  
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Originally Posted by ragtopws6
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
Pretty sure those are made by Drive Shaft Shop. They appear sturdy.
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Old Oct 4, 2010 | 09:15 AM
  #24  
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Those couplers are made by the Driveshaft Shop. We have them in some high horsepower cars right now. We have been selling them for quite a while now with great success. The 12mm refers to the size of the bolt. However, the 12mm couplers are a little thicker than the 10mm couplers. We can get them in 10mm or 12mm.
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Old Oct 4, 2010 | 09:27 AM
  #25  
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Originally Posted by ragtopws6
Later ones have 12 mm. The price listed are EACH! I rather put on parts from a well known and proven drivetrain company.
Obviously you might not know who we are. We have been building HD drivetrains longer then most of the Specialty Corvette shops have been in business. We build a ton of diffs from 63's to new 2010's. We were the company that got DTS building the bearing kits that now are provided to everyone. We do not get ours there, but I personally gave Gordon over there the part numbers on all the bearings. This was back in 98 or 99 sometime when most shops were still "re-using" bearings in those diffs.
The couplers we sell are made by Energy Suspension, they are constructed out of an aluminum ring with poly inserts. I don't think you will find stronger setup without going to full aluminum which is what I use in my car below. I would not recommend full aluminum on both ends for and aluminum driveshaft, this car uses a carbon shaft. We used to supply several of the WC Corvettes and Rolex cars untill they started running sequential box's and don't use the Corvette diffs anymore. So please don't mislead and say we do not know drivelines, yes we have a catalog and sell retail but we also have a very extensive rebuild and service department.
Justin
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[IMG][/IMG]
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Old Oct 4, 2010 | 09:57 AM
  #26  
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Originally Posted by jabbott
Obviously you might not know who we are. We have been building HD drivetrains longer then most of the Specialty Corvette shops have been in business. We build a ton of diffs from 63's to new 2010's. We were the company that got DTS building the bearing kits that now are provided to everyone. We do not get ours there, but I personally gave Gordon over there the part numbers on all the bearings. This was back in 98 or 99 sometime when most shops were still "re-using" bearings in those diffs.
The couplers we sell are made by Energy Suspension, they are constructed out of an aluminum ring with poly inserts. I don't think you will find stronger setup without going to full aluminum which is what I use in my car below. I would not recommend full aluminum on both ends for and aluminum driveshaft, this car uses a carbon shaft. We used to supply several of the WC Corvettes and Rolex cars untill they started running sequential box's and don't use the Corvette diffs anymore. So please don't mislead and say we do not know drivelines, yes we have a catalog and sell retail but we also have a very extensive rebuild and service department.
Justin
This is the new R&D ride.
[IMG][/IMG]
I never stated anything about you guys not knowing anything about drivelines. I'm sure you guys do. I just stated my personal view from what I know. I'm glad that you have provided information for all to see.
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Old Oct 4, 2010 | 11:07 AM
  #27  
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Originally Posted by jabbott
............
The couplers we sell are made by Energy Suspension, they are constructed out of an aluminum ring with poly inserts........
Your ad says "Prothane". So Energy Suspension is making these for Prothane to sell under there own name "Six Shooters"?
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Old Oct 4, 2010 | 01:43 PM
  #28  
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Originally Posted by LoneStarFRC
Your ad says "Prothane". So Energy Suspension is making these for Prothane to sell under there own name "Six Shooters"?
No you are correct it is Prothane, I was just talking to someone about a part made for me by Energy Suspension and was still thinking about that conversation when I wrote that. They are made by Prothane. We are running them in our street car, I don't have any issues with it, but I also did not have any issues with the stock rubber ones, just preventive work being done. I would not run the solid aluminum ones though, those are really race car pieces and you should run a carbon shaft when you do run those. I have seen the aluminum ones come apart like a can of biscuits.
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Old Oct 4, 2010 | 02:00 PM
  #29  
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Originally Posted by jabbott
No you are correct it is Prothane, I was just talking to someone about a part made for me by Energy Suspension and was still thinking about that conversation when I wrote that. They are made by Prothane. We are running them in our street car, I don't have any issues with it, but I also did not have any issues with the stock rubber ones, just preventive work being done. I would not run the solid aluminum ones though, those are really race car pieces and you should run a carbon shaft when you do run those. I have seen the aluminum ones come apart like a can of biscuits.
Thanks for the clarification. I looked on the Energy Suspension website and could not find any driveshaft couplers being manufactured by them at all.

As I mentioned, I am running these Six Shooters and so far am quite happy with them.
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Old Oct 4, 2010 | 05:29 PM
  #30  
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Has anyone used the urethane couplers for any significant length of time? Reason I ask is because years ago I went through two sets of urethane motor mounts and then back to rubber because the urethane cracked almost immediately every time on the mount in tension. Rubber may be softer durometer, but seems to be much more durable. As much work as it is to get to the couplers I'd hate to have them go bad sooner than the rubber ones.
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Old Oct 4, 2010 | 05:35 PM
  #31  
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Originally Posted by ragtopws6
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
Those couplers look NICE
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Old Oct 4, 2010 | 09:10 PM
  #32  
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Originally Posted by trackboss
Has anyone used the urethane couplers for any significant length of time? Reason I ask is because years ago I went through two sets of urethane motor mounts and then back to rubber because the urethane cracked almost immediately every time on the mount in tension. Rubber may be softer durometer, but seems to be much more durable. As much work as it is to get to the couplers I'd hate to have them go bad sooner than the rubber ones.
It really depends on the durometer and how thick it is. I have seen allot of rubber mounts broken also. Each part is different and what is required to stay together.
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Old Oct 4, 2010 | 09:20 PM
  #33  
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goto rpm's home, click on 'drivetrain upgrades'

Corvette C5 and C6 polyurethane coupler kits. These are upgraded driveshaft couplings made from Polyurethane for 10 mm or 12mm bolts. These are a direct replacement for the factory rubber couplers. The rubber couplers are prone to flexing and cracking with age, and under high horsepower applications.

$375.00 for a pair
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Old Oct 4, 2010 | 09:30 PM
  #34  
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Originally Posted by trackboss
Has anyone used the urethane couplers for any significant length of time? Reason I ask is because years ago I went through two sets of urethane motor mounts and then back to rubber because the urethane cracked almost immediately every time on the mount in tension. Rubber may be softer durometer, but seems to be much more durable. As much work as it is to get to the couplers I'd hate to have them go bad sooner than the rubber ones.
I tried some urethane swaybar bushings a few years back. They split the first time I jacked the car up. Granted that puts more stress on them than normal use but I don't think I would ever TRY urethane anything without someone doing thousands of documented R&D miles. Especially drive shaft couplers. The "call for more info" statement doesn't exactly instill confidence for me.
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Old Oct 4, 2010 | 09:57 PM
  #35  
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Originally Posted by Sleazy Rider
goto rpm's home, click on 'drivetrain upgrades'

Corvette C5 and C6 polyurethane coupler kits. These are upgraded driveshaft couplings made from Polyurethane for 10 mm or 12mm bolts. These are a direct replacement for the factory rubber couplers. The rubber couplers are prone to flexing and cracking with age, and under high horsepower applications.

$375.00 for a pair
That's what the thread is about.
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Old Oct 4, 2010 | 10:35 PM
  #36  
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That's allways a concern with polyurethane...certain blends can be prone to "cold flow" (distorting) if they do not have proper elastomeric properties to maintain its original form.
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Old Oct 23, 2010 | 02:04 AM
  #37  
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Default Hey guys, check our specials out.!!!

We have rebuilt and sold thousands of parts for Corvette Torque Tubes over the past 14 years...Take it from someone who knows corvettes & corvette performance parts...If its a street car at least install our truely German Rubber couplers in the front & rear of the propeller shaft...If you want to make your set-up as strong as possible without busting your walet then use one of our CNC'd Billet Aluminum BALANCED Couplers in the rear...LMK if I can help any of you guys...We have it all instock!!!





Hey guys, we just received our shipment of Brand New LS7 Clutch Kits, they are instock ready to ship the same day you order...We also have all the accessories to complete your clutch install...

LS7 Clutch Kit ....$425
Includeds Flywheel, Disc, Pressure Plate & Alignment Tool...


C5 Remote Clutch (One Man) Speed-Bleeder Kit $59.99 w/Clutch Purchase

C6 Remote Clutch (One Man) Speed-Bleeder Kit $69.99 w/Clutch Purchase

ARP Flywheel & Pressure Plate Bolts Both $49.99 w/Clutch Purchase


TORQUE TUBE ACCESSORIES...

Torque Tube Bearing Kit (3 Bearings) $99.99


10mm & 12mm CNC'd Billet Aluminum Torque Tube Couplers, The units we make are Truely BALANCED...!!!






ECPC Billet Aluminum Balanced 10mm Couplers $139.99 each
ECPC Billet Aluminum Balanced 12mm Couplers $145.99 each



(the good ones, these say Made In GERMANY)German 10mm Rubber Couplers $79.99
(the good ones, these say Made In GERMANY)German 12mm Rubber Couplers $79.99



C5 Accessories....
C5 Z06 Clutch Master Unit $79.99
C5 Z06 Clutch Slave Unit $99.99
C5 Z06 Throw-Out Bearing (the good one) $39.99
LS1 & LS6 HD Pilot Bearing $12.99


C6 Accessories...
GM C6 Z06 Clutch Master Unit $129.99
GM C6 Z06 Clutch Slave Unit w/throw-out Bearing $189.99
LS2,3,7 HD Pilot Bearings $18.99




CARBON FIBER DRIVE SHAFTS on Special $899.99


We accept Visa, MasterCard, Disc, Amex, Paypal and Cashier Checks!!!
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Old Jan 20, 2011 | 02:12 PM
  #38  
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Nice info
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Old Jan 20, 2011 | 07:45 PM
  #39  
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Originally Posted by Mike Yeager@Eastcoast Performance
We have rebuilt and sold thousands of parts for Corvette Torque Tubes over the past 14 years...Take it from someone who knows corvettes & corvette performance parts...If its a street car at least install our truely German Rubber couplers in the front & rear of the propeller shaft...If you want to make your set-up as strong as possible without busting your walet then use one of our CNC'd Billet Aluminum BALANCED Couplers in the rear...LMK if I can help any of you guys...We have it all instock!!!





Hey guys, we just received our shipment of Brand New LS7 Clutch Kits, they are instock ready to ship the same day you order...We also have all the accessories to complete your clutch install...

LS7 Clutch Kit ....$425
Includeds Flywheel, Disc, Pressure Plate & Alignment Tool...


C5 Remote Clutch (One Man) Speed-Bleeder Kit $59.99 w/Clutch Purchase

C6 Remote Clutch (One Man) Speed-Bleeder Kit $69.99 w/Clutch Purchase

ARP Flywheel & Pressure Plate Bolts Both $49.99 w/Clutch Purchase


TORQUE TUBE ACCESSORIES...

Torque Tube Bearing Kit (3 Bearings) $99.99


10mm & 12mm CNC'd Billet Aluminum Torque Tube Couplers, The units we make are Truely BALANCED...!!!






ECPC Billet Aluminum Balanced 10mm Couplers $139.99 each
ECPC Billet Aluminum Balanced 12mm Couplers $145.99 each



(the good ones, these say Made In GERMANY)German 10mm Rubber Couplers $79.99
(the good ones, these say Made In GERMANY)German 12mm Rubber Couplers $79.99



C5 Accessories....
C5 Z06 Clutch Master Unit $79.99
C5 Z06 Clutch Slave Unit $99.99
C5 Z06 Throw-Out Bearing (the good one) $39.99
LS1 & LS6 HD Pilot Bearing $12.99


C6 Accessories...
GM C6 Z06 Clutch Master Unit $129.99
GM C6 Z06 Clutch Slave Unit w/throw-out Bearing $189.99
LS2,3,7 HD Pilot Bearings $18.99




CARBON FIBER DRIVE SHAFTS on Special $899.99


We accept Visa, MasterCard, Disc, Amex, Paypal and Cashier Checks!!!
What is the carbon fiber driveshaft on special for $899.99?
Reply
Old Jan 20, 2011 | 08:04 PM
  #40  
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How many miles were on the old ones, they look like they were ready to come apart. I was just chicken to change to a different coupling so I installed new stock couplings on mine.
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