Hello,

I am new owner of a 5.0 so go easy......please

I have a 90 GT AOD convertible- stock except for underdrive pulleys. It has 112,000 miles. I just had the rear rebuilt with 4.10's. I still can't spin the tires from a dead stop mashing the throttle-barely a chirp out of one wheel. It just goes.

I figured replacing the 3.27 I would do it. It is much better with the 4.10's though.

Does this sound normal with an engine/trans of this mileage? Maybe it is time for some work but it really seems to run well through all the trans gears- it just wont break 'em loose so to speak.

Thanks

 

did you replace the traction loc in the rear as well?

 

Give the car a complete tune-up and clean the MAF. With 4.10's the car should get itself out of the hole decently, but do not expect much. AOD's have a super high 2.40 first gear.

 

you need a aftermarket stall convertor and a shift kit in the AOD

 

yup exactly , that 'vert is also heavy as he!! , my '90 lx 'vert was 3600 w/ no driver in it, so your close to 4k in your GT or more, thats what a pickup weighs

as stated , 3k stall and a shift kit. nitrous will wake it up too, my '90 all stock went 13.60's from 15.10 just w/ 100 shot dry on 3.73's

you'll need stickier tires though when it does break them loose

for comparo.... your car in 1st (9.84 total gear) is only slightly better than a t5 w/ 2.73's (9.1455 total gear)