4T60-E Gear Change ?

[Zfreak]

Does anyone have any experience with changing the Gear Ratios in the 4T60-E Trans? Can it be done ?

[napatiger]

Yeah, what he said, but with some pics.
From what I heard you have to get some parts off a 4t60e with the 3.1 engine b/c that trans had bigger? gear ratio, something to do with the sun gear and other sh...

[geoffinbc]

The gearbox ratios never changed. But you can change the drive chain ratio or the final drive ratio.

[Zfreak]

Ok so how does someone go about changing the chain or final drive?
Where to get parts?

[ko0t3rskkar]

Swap the diff. from another tranny.

[JJ77]

Speaking of changing gears I found this on an old forum and was wondering if it was B/S or True

4T60-E comes with a 3.06 carrier with 33/37 final drive gears that equal out to be 3.43 (same idea as a rear end) if u change the carrier to the biggest one that was avaliable which is a 3.33 instead of a 3.06 and with the 33/37 u end up with 3.73's I know it sounds funny but it works. Second a shift kit from Transtar, just some minor valvebody work and the prize piece, a nice torque converter I use Protech converters they got me a nice converter with a 2950 stall which is perfect cuz we all know with the 3.4 it pulls at 4k. i ran 16.60's now i run 15.00's all u v8 mustangs watch out im huntin u hope i help anyone looks to pick up on ur 1/4 time

[bszopi]

[firechiken]

Any pics of the chain sprockets? I'm assuming that if you could have a chain made to fit you could use any combo of those sprokets, ie 28/37? What does that work out to? I have a book at work that I use to figure this stuff out, but I won't be there until sat.

[JJ77]

ooohh