1/2 tons used the 4L60E and the 3/4 tons used the 4L80E
81 trans truck
That would be a 4L60E transmission.
Need to know the year.
700r4 if its an automatic
Not without major modifications. The 4L80E is shifted electronically, while the 700r4 is not. can you specify what kind modifications?
dextron 3
4l60e
Dextron II fluid.
The only transmission that will work with the factory ECM/computor is the 4L80E
Chevy DuramaxDiesel. Its a Crew Cab 4x4 3500HD with the Allison Transmission. VERY nice truck.
That kind of key was not used in 1995 models.
Assuming it is automatic, read the dipstick, probably Dextron III.