Hi guys!
I've got a T-56 question for you and I hope some people will be able to shed a little light on my situation. I've got an '84 Trans Am that I am building up. The 350 I am building should be around 425 HP, and 425 ft. lbs. of torque, and I have decided to put a T-56 in instead of the stock T-5 that my car originally had. My question is this...Will a '93 T-56 stand up behind that motor? I am asking because I have a line on a BRAND NEW '93 T-56 with bellhousing and LT-1 flywheel (redrilled for 2-piece main) for $1000. This seems like an awesome deal to me, but I don't want to go with a '93 tranny if it'll just blow up on me behind the new 350. I plan on mostly street driving, probably fairly aggressive, with an occasional run at the strip. The car has 3.73's in it which I don't intend to change, so will the .62 6th gear be ok, or would the '94-'97's .50 6th be hugely better? I really need to get this figured out, cuz this '93 is really appealing, being as it's brand new, but I don't wanna plunk down a grand on something that'll just blow up in my face! Any help at all is greatly appreciated!

Thanks!

Paul

 

Depends on how you drive and whatyuo are looking for...
The T-56 is a great transmission huge bang for the buck
quotient. The selection of ratios in the 93 is terrific for all
but the "Bonneville boys" (200MPH club).

However it does demand that you learn how to launch
a manual properly. Clutch might be an issue, use search
function for details.

For a grand I think your "quite OK"

PS Do some research on rear ends. 425HP will do wierd things
to a 10 bolt through 3.73's if you figure out how to get the
package to hook up.

 

You should be fine espascially for that price. The aftermarket box which is based on the '93 box is almost twice that price.

 

For a price like that I wouldnt hesitate. The only reason that people dont like the 93 is because the 6th gear is steeper than the later years.

 

Not true, 93 had the .62 final, 94 and later have the .50 final OD.

Supposedly the 93 box is only rated for 400 ft-lbs and the 94-97 is good for up to 450. With only a ratio change between the years and no other difference that I'm aware of I just don't see anything that would make the tq rating any different.

I'm comfortable enough to put a new 93 style box behind a fairly beefed 396, and I'm not into making $2100 mistakes.

 

It'll hold up...come on now. Does anyone REALLY think that tranny is gonna be stressed with ALL 425 of these horses? Gonna drive it around with slicks on or what??? It'll hold up, the power would break the tires loose before cratering the tranny.

For a grand? I'd take it and run. Put it in your car and have a blast man. I had a 95 T56 in my IROC, and it was doin well over 450 horses...never had a prob with the tranny (did ruin the rear end, but hey....time for somethin better!)

Do it man...do it.

Kelly

 

Thanks for the input guys! I think I'm gonna go for it! I can't wait to get everything together! When I do I'll hafta race my dad with his '00 TA and see who wins!!!!

Thanks again!!!!

-Paul

 

with 425 horses???

Plan on winning..heh heh heh.

But get a decent clutch, Performance SS is a good place to look, that's where I got mine anyways (get the most expensive one...dunno if it's worth it, but brag to your friends later).

Kelly