Well I rebuilt the transaxle with hardened output shafts and am in the process of installing the exedy twin disc... however my problem is once I pulled my torque tube out, and spun it for good measure, I heard some bearing noise from the rear bearing nearest what was the transaxle, I assume it took some damage or metal shavings during the catastrophic explosion.. lol. I need to replace the rear bearing, I unbolted the tail housing section and removed the snap ring, however its a major bitch to get that damn shaft off the bearing so I can replace it... anyone have some information on this? I can't find any.

 

ttt

 

Who's got some info for me? All the local shops seem to believe the torque tube is unservicable, I cant order the bearing, buy a new one.. and forget spending 1,200 for a 3.00 bearing.

It's an SKF bearing, but the part number looks like itson the back of the baering where I can't see. I worked directly with SKF when I was rebuilding superchargers and I'm sure I could probably order from directly from them if anyone had a part number... but I'd rather someone who knew what they were doing chime in for me.

 

ttt

 

Ttt

 

The front bearing is a skf 6007 2rsjem.

The (2) rear bearings are skf 6008 2rsjem.

It will cost you more than 3 bucks for the bearings, but no where near a new tube.

 

you da man doug! Tell me, do you know any distributors for the bearings?

 

motion industries is where I got them.

 

Some of the big players that are approved to sell our bearings are Motion Tech., Applied Industial, and Kaman. There are a few others but I'm on the road this week so I don't have the list that I keep at my desk in the office. 6008 is the basic bearing size number, with metric size bearings like this one the last two digits call out the bearing bore size. So ..08 is a 40 mm bore, 5 times whatever the last two digits are, this system works for any metric bearing up to 500 mm, thankfully we don't have any bearings that size on the Vette. The ..2RS stands for a contacting seal on each side of the bearing, at SKF when you have a seal on each side the bearing the bearing will come with grease in it already. The ... JEM is a special elec. motor, high temp, high speed suffix, since I'm not in the office I don't have all the details but there are a few more things to note about that suffix.

If Chevy followed SKF's guide for mounting that bearing my guess is that there is a pretty good press fit on the bearing to shaft contact. Having never seen the torque tube pulled apart in person I'm not sure of the best way to pull the bearing off. But when you go to install the new bearing try heating the bearing, if I was in the office I could give you the best temp to use but just guessing out here on the road I would say 120 F would be a low guess. You don't want to go over the max grease temp or the max seal temp when heating the bearing. Hope some of that helps, if you need more I'll be in the office again Monday.

Sorry I couldn't help figure out what bearing was in the tube, my role at SKF has me working with Heavy Constuction Equipment Applications at Caterpillar. The Automotive group would have the info for Vette.

 

lol, now that is why I come to corvette forum!!

Thanks for the good info, I really appreciate it. I will purchase a new set of bearings. Thank you very much for the part numbers, now I just need to get them damn things.

 

Heres question:

The rear bearings were making kind of a occasional slight pop when I spun them, kind of like the sound you hear where there is a grain of dirt in a bearing or something, it wasnt terrible, but I was a little concerned. I took off the tail housing and it dosent make the noise now, spins freely and fine, and there is no play in any of the races, pretty rock solid... do you think I'm just over reacting? Do the tubes normally have a slight noise to them? I never remember any noise coming from the tube when it was stock.

 

80 bucks for all three bearings... pretty far cry from thousands..

debating whether or not to do this, of the 3 shops I called, which were in business for about 6 years a piece, all totalled have replaced 3 torque tubes... which leads me to believe these things hardly ever have problems... maybe this is just normal.

 

I am replacing my front bearing right now (because it whines)- no mechanical problems, its just annoying.

I think most people just buy another torque tube for $500 or so when theirs has problems...

 

I'm not scared of a little work, I rebuilt the transaxle, this shaft is cake.

I'll save my money I suppose, just trying to find the cheapest place to order at the moment.

 

When you get-er done can you post up some information, I have some noise in mine and was thinking about replacing all of the bearings & the clutch assy while I'm there.
Thanks and please post it up once you have finished.

Thanks, I appreciate it.

Thomas

 

If I'm forced to do the install I will definately make a how-to, there needs to be one.

 

great info on the part #'s, good thread to bookmark

 

in 2001 the TT was upgraded, were the bearings changed?

 

It's only 80 bucks. That versus another tear down.

When my torque tube was seperated from the transmission and I rotated it it would make quite a bit of noise. Bearings looked good as well. After I replaced the bearings and rotated it again it was whisper quiet.

 

I believe that the bearings are the same, I will check it out.