Chevrolet Express Van - AWD to 4x4 conversion

curtis73

New member
Thanks for the link. I'm pretty much down to wanting an NP242 and dealing with the headache. It is sort of the manual, non-electric version of a 246. It has the regular 2hi/4hi/4lo, but adds a 4FT by means of a locking/unlocking differential for the front output. It was called something like the SelectTrac in jeeps, and the only chevy version was used in Hummer H2 (27 spline/4L65E) and H1 (32 spline 4L80E).

The Jeep version of the 242 has a booted slip yoke front, but not the right splines or length from what I understand. I have a feeling I'm traveling down a very long rabbit hole of part numbers and specs.

I appreciate the build thread. Thank you for sharing.
 

Teacher88

Member
Here's another post to bring this thread back to life once again. I Picked up my np 241 transfer case yesterday from a 1993.
Here's my question. Has anyone found an off the shelf front drive shaft that will work? The longest I can find is 30 3/4" when compressed and from what I understand I need something like 34 3/4". 4" seems like a lot to get out of the slip yoke but I'm no driveshaft wizard

Sent from my SM-G991U1 using Tapatalk
 

jonnypage

Member
Here's another post to bring this thread back to life once again. I Picked up my np 241 transfer case yesterday from a 1993.
Here's my question. Has anyone found an off the shelf front drive shaft that will work? The longest I can find is 30 3/4" when compressed and from what I understand I need something like 34 3/4". 4" seems like a lot to get out of the slip yoke but I'm no driveshaft wizard

Sent from my SM-G991U1 using Tapatalk
I am in the final stages of this swap. I used an np241 LD case from a 1500 pickup. I got custom shafts made as the front needed to be shorter and the rear longer. Front shaft does not extend or contract so one length is good. I can get shaft lengths if you like but they may be different depending on your t case
 
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