Engine/Transmission (1994 - 1998) A clutch disaster waiting to happen!!!

[FATCAT]

OK, yeah I do have the 400/900TQ one, but Im pretty sure nothing was redrilled so its gotta be the 12¼ hub. I just had it put in about a month ago. Do you guys think I may have this prob. down the road also?

Well, just don't do any more upgrades and don't tow anything real heavy, especilly backing up and you should be OK ... for a while.

Awww, don't worry ... just beat it up and in a couple of years replace it with a 13" modle.

 

[Bloomy]

If it helps, any reasonable expectations on these performance single disc 12 1/4 is only maybe 30k and if you are lucky 40-50k. I managed about 50k at 700-800 lb-ft of torque with lots of towing and exhaust braking, but no sled pulls or drags. Peter explained that he can make the disc materials hold the power but the small hubs are the weak factor and just can't take the abuse. And they are Luk hubs. He suggested when I got the original OFE to upgrade to the 13" for that reason, but I went with the OFE anyway. I still wouldn't be that concerned unless you are expecting lifetime performance from your clutch. Even with the DD I know that I will have to rebuild it at sometime, but that is the benefit; it can be rebuilt to any of the DD styles.



Thomas



edit: When mine went there was no noise/grinding/nothing. Coasting down a hill got back on the throttle and thought it was in neutral No go what so ever only a revving engine.

 

[Signal73]

Well, just don't do any more upgrades and don't tow anything real heavy

Awww, don't worry ... just beat it up and in a couple of years replace it with a 13" modle

I like this advice better :-laf

 

[DWitcher]

Whats wrong with putting stiffer springs in the clutch hub to stop the inter hub from hitting the rivets connecting the outer disc?

 

[NIsaacs]

I'm not sure,but I think the 12" clutch is too small for a heavy duty center hub and still have enough room for the lining. On all my failures, the lining was never a problem, with some of the weaker hubs breaking before the part number was even worn off. This includes cheap organic lining to some of the metalic types.



I don't think in low torque use, as in backing up or starting out, even with a heavy load is where the failure comes from. I think it is in the higher gears when you can and do use full power, that the high torque motor compresses the springs to the stop pins and over time breaks the junky little hubs.





"NICK"