I have a 1999 Gmc sierra K1500 (4WD) and it's in need of rear axle bearings. Now, i have replaced bearings on a truck before, but it happened to be a ford. I have the tires, Calipers, Caliper Brackets off and now im at the E-Brake and the shaft where the lug nuts get tightened to. The Haynes manual lists three ways of removing these bearings but im not sure which one is for my truck. It's a Non-Posi Rear with a 3.73 Ratio. I see behind where the lugs are there are 4 Bolts. On the ford i replaced these bearings on, i removed two bolts and the whole Axle Shaft pulled right out of the rear end. So, my question.... Do i remove those 4 Bolts and the shaft will slide out or do i have to pop off the Rear Differential cover and remove the C-Lock Clip and Pinion Shaft. Any help will be greatly appreciated.