Hi there!

I've been looking around the forum, but still can't figure out for sure what transmission my truck has. I took some pictures last night and hope you might be able to see. The gear pattern is like this:
R 1 3
2 4

 

It's hard to tell, but doesn't that say "Tremec" under all that grease?

It could be the 4 speed, 4th gear being overdrive.

 

Shift pattern for the Clark (AKA: Tremec) 4 speed overdrive:

R-1-3
--2-4

The **** will say push next to the R as you have to push down then over to get it into reverse.


Look at the safety certification lable on the drivers cab "B" pillar next to the door striker bolt.

Under Trans if it came with a Clark (Tremec) 4 speed overdrive from the factory, it will have a CODE B.