Third gen tranny problems

[87T/A]

i rescently put a 91 vette TPI in my 87 TA. Engine runs great, but i have the original 305 auto tranny in my car. I can't take her to 4500 rpm in first without bucking, and not even 4000 in second. I am looking to put in a manual transmission. Can a T5 support my 350? any suggestions for other trannys?

[Trash man]

it can hold for a while but it will puke. if u can get a world class one it will do better but dont expect to hold up when speed shifting and what not. if u can, do the T56 swap, its one of the best upgrades. if u need more info, visit www.thirdgen.org

[87T/A]

any idea what a good price is on a used t56 assuming i do the labor myself?

[Mark B]

They range from 900-1500 for a complete swap kit. The kit should come with:

-Transmission
-Bellhousing
-Clutch/Brake Pedals
-Clutch Hydraulics
-Shifter

In addition, you will need to get a new trans crossmember ($150ish)& a speedometer calibration box($80ish).

Make sure you the trans from an LT1 car. The LS1 T56's wont fit your engine.

[87T/A]

any idea how long the job should be with two people?

also my setup is a 91 5.7 with a holley 4 on it, edlebrock performer, high flow cat, and flowmasters, i prob run in the high 14s right now. with the new tranny and possible 373s or 4.10s what should i expect as far as times?

[Trash man]

tranny wont matter unless u get a 93 t-56 with the nice 3.2X frist gear ratio. the gears will help but ur 60' time might slip a bit with the manual. also ur gonna have to cut 2" more out of the shifter hole so u can get it into 1,3,5,R. www.thirdgen.org has a complete write up in the tranny board

[87T/A]

thanks a lot, ill be lookin for that 93 , but with my current tranny problems my 0-60 could only improve with a 5 or 6 speed simply because my tranny bucks and shifts slow from 2nd to 3rd, although my quarter is respectable for an 87, my 0-60 is sub par at prob around 7.5. i honestly feel i could drop a full second with the headers, gear, and tranny off the 60.
I know that sounds nuts, but if you took the car for a spin you would prob agree.