NV4500. It was available from '92 on in the 3/4 ton and one ton pick-ups.
NP208 and NP241 both bolt right up to it. The only alteration as far as the transfer case is concerned is the input gear. You'll need to swap out the 27 spline input for a 32 spline input gear. This will be the case regardless of which 5 speed you choose.
The NV4500 is a very strong 5 speed with a granny low first gear, and an overdrive.
here is a good pic of the back of the NV4500. You can see the generic GM 6 hole pattern and the 32 spline output.
Go check your current T-case to adaptor and you'll see the same 6 hole pattern. The only small issue is the pattern is not symmetrical, and the NV4500 was never in a truck with a passenger side drop T-case. The 6 hole pattern on the NV4500 is mirrored to what you have. It will require slightly ovalling one hole...
You will need an aftermarket bellhousing, look to Advance Adaptors. Mine was under $400 and came with the clutch fork and boot as well as a dust cover.
Don't forget you'll need a flywheel, clutch and pressure plate. Clutch slave, clutch master, shifter and shifter boot, and might need to alter the crossmember.
Rene
