Battery Ran Dead and now 4x4 does work

[INW-Iron-Steel]

I am unsure the brand of the transfer case. I bought it from Western Powertrain in Edmonton. From the looks of it, it was just a core they rebuilt and slapped some primer on it.

Since the transfer case has the 4 auto system. You can only really use the GM autotrak fluid to prevent damage from what I have heard. Its like $16 at my local dealership so I figured i should just use that.

Interesting. I only ask because the 261 I got had a giant tag next to the fill hole that said "Don't void your warranty, run only 5-30 full synthetic motor oil." I'd never seen that prior, always just ran the OEM spec fluid...