What is the difference between the 2? I am looking 2 get a crew cab but would like a selectable t case with a front diff that will not bind. Thinking of a 4wd and swapping the front diff. Will this work? Thanks for any help.

 

Transfer case front drive shaft and the electronics that manage all of the above are also different. retrofit can be done just going to take time and money

 

The differential itself is the same between the AWD/4WD trucks, where the difference lies is in the passenger side axle tube and axle. The AWD drive models have a one-piece passenger side axle and the axle tube does not have a spot for the encoder motor. The 4WD models have a two-piece passenger side axle, engagement fork and a corresponding axle tube with the encoder motor. You can swap the parts from one to the other.

 

So I guess the only difference between the 4wd and awd is the t-case and the encoder motor? I was thinking the front diff was different because awd don't seem to bind when turning.

 

Front axle is different. Basicly AWD has longer right side axle and different
tube because it has no actuator and engagement sleeve.

 

Binding is caused by both front and read axles being driven at the same time. AWD transfercases don't apply constant drive force to both front and rear all the time.

 

mine is awd stock. driving around it does like a 36/64 or some off the wall power split between front and rear. when driving around there is no bind cause front and rear turn at different speeds. now when i lock it in 4lo then the steering gets ruff just like regular 4wd.

 

What transfercase are you using to have awd and 4lo?

 

He most likely has:
Option Code (RPO) - NR4
Vehicle(s) – Tahoe/Yukon, Suburban/Yukon XL
Model Type – BW4482
Description – 2-speed, full-time AWD, open differential with traction control, low range lock

 

we have a winner. yes the 4482 is my stock case. I'm swapping to a SSS case though.