Should an IFS truck CV axles spin in 2wd?

[Pookster]

So on these newer IFS rigs that still have a manual transfer case- When you are in 2wd, is the CV still supposed to spin? Im thinking this can cause some unncessary wear- Would manual hubs help? Or is the problem that it shouldnt be spinning anyways, and I have some other issue on my hands?

 

[beatup4x]

Yep, with the ifs your cv axles will still turn because the splined end of the axle directly engages with the hub. I don't know of any manual hub kits, but I don't think it is really necessary. I had a 92 1/2 ton with 280k miles and replaced both axles because I cracked the cv boots and let them run dry causing damage to the joint.

 

[big83chevy4x4]

the actually "lockout" part of the front axle is before the CV shaft. the CV shaft is kinda like a front wheel drive car where it connects to the wheel hub.