Busted input drum? how did this happen?
Thread Starter
Joined: Apr 2004
Posts: 3,001
Likes: 62
From: Salt Lake City, Utah
Car: 1988 camaro "SS"/ 1991 305/T5
Engine: 383 LT1 in progress/LT1TBI 355 soon
Transmission: Probuilt 700R4 3600 stall/ T5
Axle/Gears: Moser axles, 3.42 Eaton Posi
Busted input drum? how did this happen?
Well my 88 has been down under going major swap surgery and we've gotten around to the transmission. I got a phone call from the tranny builder here in town and this is what he had to show me....
From the research I've done is that the input drum can be a weak link when bumping up the power in a 700R4 but my question is is how in the hell did it bust apart like this? Plus, the only strong replacement I've found is almost 500 dollars and on a national 2 month back order. So what can I do to solve this? HELP!!! lol
From the research I've done is that the input drum can be a weak link when bumping up the power in a 700R4 but my question is is how in the hell did it bust apart like this? Plus, the only strong replacement I've found is almost 500 dollars and on a national 2 month back order. So what can I do to solve this? HELP!!! lol
Supreme Member
Joined: Jul 1999
Posts: 3,479
Likes: 54
From: Calimesa, California, U.S.
Re: Busted input drum? how did this happen?
It happens once in great while. Not common though, and really not much you can do about it, unless you go with the Sonnax fix for this. I have had this happen twice on me over the last 20 years or so. As I said not very common.
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