Looking for tranny facts.

[Goat Blower]

1G's and 2G's have different length driveshafts. Manuals and autos have different rear-end ratios. The 90 tranny has different length shift rods on the tranny than the 91-94's do, but swapping a few parts like the shift cables, brackets and shifter will make it work perfect. GVR-4's have a longer first gear, but is otherwise identical to the 91-94 tranny. Internals is another story, but most of the parts except the 2nd gear cluster are all 1G parts for the best overall tranny.