Transfer case select switch??

[ndrewoods]

Originally Posted by Bulldog400

They called today and now want to check my shift fork in the transfer case to make sure its working right. I'm going to take it in this week becouse i dont want to drive it in 4hi lock ( the dealership said it was in 4hi lock due to the sevrice 4wd light). when you turn the wheel sharp you can tell its in 4hi lock. The hummer only has 58k mile and this has been my only problem( i just want it fixed).

Yeah, better let them check it. When you drive on pavement with 4HI engaged and turn the wheel to lock, a tire, if not two, should 'skip' as the transfer case has locked the front and rear axle together to turn at the same speed so the outer tires will have to rotate more than the inside tires. I have an LSD in the rear, but an option is to replace it with a true locking axle to give you even more traction. Best of luck.