I'm running an 89 2.3L t-5 in my 90 gt and it's not to bad. All gears are lower except 4th is still 1 to 1. The shifts are choppy and you will never hook first or second gear but if you want a tire shredder it's fun for as long as the trans lasts. They're only rated at 240 lbs torque so careful how you drive it or it will break. And the FoxChassis is right, I used the 83 2.2L diesel ranger bearing.