Chevyguy358

iTrader: (4)

so I am certain that my current transmission won't handle my current motor setup and my 325 dr's. Anyway I am trying to determine whether I should buy another built 4L60E or go the T56 route. Do built Auto's usually last quite a while in comparison to a t56. How much of a headache is it to do the conversion?? I've looked over a few written procedures and it seems like a pain, anyone with first hand experience? I'm only puttin out about 390 tq but with the 325's hookin its alot of stress on the drivetrain.

BigZee71

iTrader: (5)

Just consiter that the transmission is no longer going to be the weak link after making a t56 swap. If your still running the 10 bolt, prepare to upgrade.

The swap is well worth it. If you can pull and replace an auto trans, you can install a 6speed.

TurboAv

iTrader: (6)

But then the weak link is $1000+ clutches. That's why I'm ditching my 6-speed for a TH400. You had also better be a pro at shifting or you are going to run slower.

performabuilt

iTrader: (25)

In your power range there is absolutely no reason for you not to stay with the 60e a properly built 4l60e from any sponsor here will fair well in your application and a stalled auto is the fastest way to go period IMO all things equal

Randy WS6

iTrader: (69)

I'm switching from a M6 to a 4l80 ,because i want to be more consistent and will see some track time this spring. I love my M6 on the street but for the track i want a automatic. I never had any problems with my M6 tranny its self ,BUT Ive blew so many rear ends and clutches its not funny. I upgraded to a Spec stage 3+ clutch and a 8.8- 31 spline rear end and not had any troubles at all sense. With the hp your running a 4l60e should hold, but might need a little upgrading, and for what it will cost you to convert to a M6 you could have a 4l60e built to hold or even a 4l80e but a little more work involved.

Chevyguy358

iTrader: (4)

Well I just had this 4L60E trans rebuilt not too long ago, prolly 10k on it max. Do the performace built units last substantially longer than this? if not I don't want to find myself down this road again