[craigayl]

A late comer..

This thread caught my attention, I have read all the posts and am disappointed it turned into a "who shot whom" rather that an investigation from a technical aspect.

I have seen many damaged Tremec's and there is no way this failure had anything to do with a shifting error. If that is what Tremec concluded, the tech simple does not know what he or she is looking at or was being dishonest to cover up a warranty claim.

First.. Note that the blocking ring and syncro teeth are in perfect shape... Absolutely NO evidence of a missed shift.

Second.. Once the syncro teeth are engaged, there is no such thing as "partially engaged". Either you are engaged in which case you will stay in gear and transfer the load to the "constant mesh" gears OR you are not engaged in which case NO load will be transferred to the drive gears. IF at that point you try to force a shift you will knock the sharp corners off the syncro teeth.

Third. I have heard no one comment on the alignment of the third main shaft gear and the third countershaft gear. Maybe this is an illusion from the photo, but it appears that the countershaft gear is a good 1/16" forward of the main shaft gear. This is not right. These two gears are supposed to be perfectly aligned. If what appears in this picture is correct, there was a serious problem in the original assembly and this would very likely be the cause of the failure.

Greg/Fordfan69 - You may want to look at this very closely and also look at it during the rebuild. Those gears should be aligned perfectly. Not one ahead of the other. If the new assembly is aligned like what appears in your picture, you may be headed for another, identical, failure.

Craig