For parts identification purposes, a Round Tag is affixed to the back of the rear case. Stamped on the tag are the Model Number (ex: NV271D or MP271), Assembly Number (8 digit number plus two letters), Transfer Case Build Date, and Low Range...
What do the numbers on a transfer case tag mean?
https://www.youtube.com/watch?v=oWSlnzlmLnU
Which trucks have the NP261 transfer case?
About the NP261 Transfer Case The NP261 was used in Chevrolet and GMC in Silverado's and GMC Sierra. This unit was utilized beginning in 1999. The NP261 was manufactured with left side drop output and has a low gear ratio of 2.72 to 1. This unit has combination of 2 high, 4 high, neutral and 4 low.
Are all 246 transfer cases the same?
The 2001 unit would free wheel the front drive just like any other 246, in that respect they're all the same. As far as the internals go there are 2 chains, 2 different front case halves along with 3 input shaft, also different bearings go with each shaft. The shift cam is different for 03 and up.Dec 31, 2013
What transfer case is in a 2001 Chevy 2500hd?
The type of transfer case fluid the 2001 Chevy 2500hd uses is Dex III.
How do I identify my Chevy transfer case?
https://www.youtube.com/watch?v=ZxAHXcJT9Hk
What is a transfer case in a vehicle?
The transfer case attaches to the transmission and connects to both the front and rear drives axles of a four-wheel-drive vehicle. A transfer case usually has several different operating modes, controlled by the driver.