minimum tranny upgrade [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: minimum tranny upgrade


pressley10r
03-25-2007, 03:50 PM
Ive done a lot of research here on the site and other places, correct me if im wrong, a transgo kit and a decent converter could be had and installed for well under 1000; how much more power for instance would a suncoast III actually hold for probably 25-2700 installed?? i realize it comes w/ a triple disc converter, but i just cant see it. just my .02

LWATSON
03-25-2007, 06:27 PM
The transgo kit is cheap and fairly easy to install, but a good converter is $1200 and the most popular the 1057 is about 1400. If you are going to replace the converter you might as well do at least a stage 3 kit the tranny is already off the truck anyway.

schulte
03-25-2007, 06:33 PM
Ive done a lot of research here on the site and other places, correct me if im wrong, a transgo kit and a decent converter could be had and installed for well under 1000; how much more power for instance would a suncoast III actually hold for probably 25-2700 installed?? i realize it comes w/ a triple disc converter, but i just cant see it. just my .02

$1000 is a little low for transgo and converter; in an '03, you're going to have to drop the tranny and take it apart a little for the transgo kit. I'd say anywhere's between $1300-1600 just for the parts, installation is on you.

A SC III should have no problem up to 500hp, but I've heard of them handling 550-600 without even flinching. Actually, I've only heard of a couple cases in which a SC III couldn't hold the power being put into it. Again, $2,500-2,700 installed is a little low... Expect to drop $2,200-2,400 for the parts, plus $800-1,100 for the install, if you choose not to do it yourself... In my oppinion, if you're going to pay that much for a tranny upgrade, go with the SC IV; its roughly $500 more. Worth it, if you're going to go to all the trouble yourself or spend all the money to have someone drop and rebuild your tranny...

Mike L.
03-25-2007, 07:15 PM
Ive done a lot of research here on the site and other places, correct me if im wrong, a transgo kit and a decent converter could be had and installed for well under 1000; how much more power for instance would a suncoast III actually hold for probably 25-2700 installed?? i realize it comes w/ a triple disc converter, but i just cant see it. just my .02

A used converter and Transgo will cost you more than 1,000.00.

Wolford
03-25-2007, 11:03 PM
Where did you get those prices from??

mxrider801
03-25-2007, 11:18 PM
IIRC a transgo and a TC pretty much just hold an edge or banks level tuner. If you get a PPE, VA, Quad, or go EFI you will most likely overpower it and have to open her up again. I would just get a full kit like the III or the IV.

hemisareslow
03-25-2007, 11:34 PM
If you are going to take the time to drop the tranny and put in a transgo...do yourself a favor and do it right and once....wait a little longer until you can affoard a 5 star converter...and a stage iii at the least.....you won't regret doing it right the 1st time..

pressley10r
03-26-2007, 07:41 AM
A used converter and Transgo will cost you more than 1,000.00.
i was referring to a transgo ($200) and a at 545 converter at $500 IIRC

Mike L.
03-26-2007, 10:04 AM
i was referring to a transgo ($200) and a at 545 converter at $500 IIRC

AT 545 converter will not work on an Allison 1000. It has no lock-up clutch. It will fit a 400TH.