82 GT tranny swap - help

[Unit 5302]

Originally Posted by skibender

Thanks for all the good info. I'm mainly looking for a good tranny for crusing. I don't think she'll be a racer - never know though - depends how the motor performs. Will I be able to use my stock driveshaft? What's the latest year for a T-5 that would fit my 82? Is the T-5 used in the stangs from the 90's also? What is the advantage of a crossmember later the 85? Hump for dual exhaust?

It may be worthwhile to note there is a significant difference in torque capacity between the early non-World Class to the early World Class and later World Class T-5 manual transmissions.

1983-1984 the T-5 was a non-WC unit rated at 265lb/ftwith a tall 2.95:1 first gear.
1985-1990 WC T-5's were rated at 265lb/ft, but offered an improved output shaft, better syncros, and a 3.35:1 1st gear ratio.
1990-1993 WC T-5's were rated at 300lb/ft with a 3.35:1 first gear as the gears were upgraded to a harder nickle alloy set and the syncros were again updated.
1993 Cobra's used a Cobra spec T-5 using a 3.35:1 first gear, phosphate coated gears, and a tapered roller bearing on the input shaft instead of the weaker needle bearings in previous models. It was rated at 310lb/ft.
The Z-spec T-5 was basically a Cobra T-5 with a 2.95:1 first gear. It was rated at 335lb/ft.

Avoid the early, non WC T-5 transmissions, and if possible, get a 1990 T-5 or newer.