As I am driving there is a bang (maybe truck is trying to switch into 4wd) and all 4 tires are locking up. I put a new transfer case in last year. Any ideas?
it is the Ebrake on rear end
mine just went out
it explodes,clean out pieces and you will have to replace a seal
I just went around it and still have 3 brakes working
RepairPal Certified shops can diagnose and repair your 2001 GMC Sierra 2500 HD. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.