[2manyT/A'S]

Originally Posted by pggto

Yes the original trans comes with the car, what would the 1st gear ratio be?

MOST 75-79 T/A's (4 speeds) came with a Super T-10...with a 2:64 or 2:88 low gear...basically an enhanced "wide ratio"....

79 301's and 81 305's came with an ST-10 with a MONDO 3:44 low gear.....which made the little motors launch like they 4:56's in the back.

It was basically a poor mans 5 speed with that combo of trans and rear axle gears...with NO 3rd gear.....

1st and second were matched...as were 3rd and 4th.....but the 2-3 jump was HUGE...and it dropped you right OUT of the race.

The input shaft should have NO grooves cut into the clutch disc splines...that is the easiest way to identify....There will ALSO be a 2 letter code stamped on the case....I have the list here somewhere...if you find it..

2 letter code will also be on the build sheet transmission box.