That trans is out of a 86-89 5.0 and is rated at 265 ft. lbs of torque. The 90-93 T5 was rated at 300 ft lbs. Honestly that trans should be fine. Ifnot it can be upgraded with a T5Z gear set from Astro Performance. This will up the trans rating to 450hp/330 torque. I've did this gear swap before, fairly simple.