Looking for info and specs on a 72' CJ-5, produced in Mexico

[Meteorix_arq]

I own a 72' CJ-5 produced in mexico. It comes with a car-like 3 speed and Dana 20 Transfer. I need to now specs on this particular trans to decide wether i keep it or not. The overall off-road performance is great but i just got to be certain of what i have.

[lynn]

The stock 3 speed in 1972 was a T14. Ratio 1st: 3.10, 2nd: 2.61
Not a particularly strong tranny.
A T18 would be a good swap.