Little update: Kyle called Dick back today. Basically, what Kyle told Dick was that DSE has chosen to use Moser's Torino Big Bearings because after trying just about everything, they found all of the setups, (short of anything like a full floater), to have flaws. However, Kyle seems to think that Moser's Torino Big Bearing setup is simple to maintain and reliably run, making it the least of the evils. He told Dick that before track days they pull the rear brakes on their test cars and put silicone around the bearings. It may seem like a bit of a band-aid solution, but they seem to think that all things considered, and compared to other options, the Torino bearings are the best, or least bad.

Dick didn't ask Kyle about tapered bearings though, and I'd like to get his opinion at some point. For now, I think I'm going to wait for Todd to beat the piss out of his car a little more and see how his setup holds up.

Matt

Have Dick call me.. I would like for him to check something out..

Did you end up going to cars and coffee? If so... how was it?

I want to know what posi unit is being using in the car.. Detroit Locker.. TrueTrac.. ???

$20 says it's a Detroit Tru-Trac...

The "problem" is when autocrossing these cars huge side loads are put on the rear bearings.. loads they weren't designed to take. So I can see how they would start to seep.

Every solution is going to have it's own unique problem.. well, except a floater but that has a cash element..

I just got off the phone with Larry C from Pro-Touring.com.. He was having serious issues with piston knock back on his rear brakes & took his car over to Wilwood to see if the issue could be fixed.. He has a 12 bolt with Torino ends & using a Detroit Truetrac.. Wilwood did eveything they could do to work out the end play out of the axles.. but was still having piston knock back.. One thing that was discovered was that when the car was put up in the air & the load was taken off the wheels, it would hang the tires as if something was lose.. Put the rear on load & it would tilt the wheels in..

I just looked up on how a Detroit TrueTrac unit works.. worm gears is how this unit works.. They do not machine a bore to locate the gears that go into the splined portion of the axle.. If the axle is not located on the splined portion of the posi unit it is going to create alot of movement that can hurt the outer bearing & seals on the axle end..

Now take a look @ a Detroit Locker with spider gears & clutch pack.. the spider gears that go on the splinded portion of the axle is bore machined & located on the posi unit that keeps the axle centered on the axle tube..

http://i1015.photobucket.com/albums/.../ct_125986.jpg

http://i1015.photobucket.com/albums/.../ct_126000.jpg

currie set my 12 bolt up with 9" ends and the U356L bearings. im thinking these are the set 20 tapered roller bearings. is that correct, and if so, any need for me to worry? are there a few different style tapered bearings?

i hate reading informational threads after ive already spent the money..........

Matt...

What carpet did you go with on your car?

Cris, I'm not following you. From the exploded view the ture trac does have a smooth bore for the axles to slide into then the splines.