42RLE issues

Squirrel 69

New Member
Original poster
Joined
Feb 22, 2026
Messages
1
Location
Mt Hope Ks
my 42RLE transmission was working great went for a drive yesterday about 6 miles and stopped for about 20 minutes went to leave put it in reverse and it would not move, it was pulled out of another jeep with 30,000 miles on rebuild i put about 100 miles on it since I installed it.

it works perfect in drive, when I put it in reverse it doesn't make a noise and doesn't throw any codes ,

It's full of oil and oil is clean I'm not sure what is going on any help would be greatly appreciated !
 
I'm confused. Are you saying it works in any gear but reverse?
 
I am pretty sure the reverse is the first to go in 42RLEs that fail.

Does it work in 1 but not R? Are you sure the linkages are adjusted correctly to fully get to R?