Quote: Originally Posted by babykat
A new input shaft is about $385 plus labor. I don't know if you guys have noticed but the T-850 input shaft has no real support. I think it should have some sort of support bearing somewhere after the throw out bearing and before the 1st cluster gear to absorb some vibration. just a thought.
well your on the right track! anyone that knows anything about bearings know that needle bearings really suck. with that out the way, if those fail you can still drive but youll have problems. the more you drive more you break. sometimes more stuff breaks than others. every 850 ive torn down has alwayse had bad needle bearings in a gear. now, you add power, W.O.T. shifting and other harsh driving then those bad bearings now can turn into anything all the way up to a broken shaft or a cracked case. ive rebuilt over 15 srt-4 850s and it alwayse looks like driver abuse. why? cause the 850 is not a high performance tranny. it can handle power but its not for racing. you can pull a boat with the damn thing but you never know if it will make it another day at the track. mine, mine is fine. no problem , ever. yours well you just never know!
