Muncie SM465
first - 6.55:1
second - 3.58:1
third - 1.70:1 if you see it listed as 1.57:1, they are wrong
fourth - 1.00:1
Reverse - 6.09:1
available from 1968 to 1991, the 88-91 versions had an aluminum top which makes it nicer to muscle around, and has a better feel
86 regular truck versions had hydraulic clutch release replacing the mechanical linkage.
if you buy one, use 50 weight fluid.
if you can make sure it doesn't pop out of third, some of them like to do that lol
there are 3 different output shafts, early 4 wheel drive was a short 10 spline, late 4 wheel drive was long 32 spline, and all 2 wheel drive were 35 spline
68-81 came with a np205, 81-89 came with a np208 (unless ordered with a 205), and 89-91 came with a np241
np205 is gear driven with a cast iron case 1.96:1 low range very strong
np208 is chain driven with a aluminum cased 2.6:1 low range (not good for rocks or applications where its going to drag/get hit )
if you have any questions let me know
