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The most important place for the case to be strong
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Posted by 85SLED (more from 85SLED) on Mon, 18 Oct 2004 11:32:05 Share Post by Email
In Reply to: Re: Where exactly do you feel the case is "reinforced"?, chrisx, Sun, 17 Oct 2004 18:37:18
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...is around the right inner driver mounting flange. When we replace a C900 manual transmission due to a broken case, it is always because of a fracture around this area. The extreme torque variation of a jerky launch or abrupt slippage/grippage results in the ring gear trying to escape the tight confines of that portion of the case...and it often does just that.

It is good that the 4-speed case weighs more than the later cases, but the added aluminum really needs to be around the right inner driver/differential area. I suspect that the majority of it is in that flat bottom area, however...not particularly helpful in preventing this type of failure.

chrisx: Did you go to a 4-speed case because of a 5-speed case failure? If so, how (where) did your 5-speed case fail?

Eric H.

posted by 141.156.13...

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