4WD Issue

[Keviebear86]

I have an 06 Tahoe 5.3L that has a 3" lift. Currently indexed keys and pucks in the rear. I have an issue with the 4WD seems to bind and not want to move without giving a heavy foot. I don't feel like this is normal and was wondering if there is anything I can do with my front differential to realign my front axles a little better. I think that may be part of the issue. I am running 275/60R20 tires and it hardly rubs at full lock. Just trying to make this perform as factory if possible.

 

[B-train]

Send pics of the cv shaft angles and the front driveshaft. Does the lift lower the differential and have a taller spindle? If it's 3 inches of lift from torsion only, you probably have extreme angles on he driveline which can cause what you are experiencing, as well as much lower life span of said components