I used your site to figure out that I needed a 36 mm socket to remove the spindle nut so maybe you can help me with my real problem.... I am trying to replace my wheeling bearing on my 2001 Tahoe LT, 5.3, 4x4 ... front left (driver) side. I was able to remove the spindle nut, all 3 bolts holding the wheeling bearing on (and of course the caliper, pads, caliper bracket, and rotar). But I can't get the assembly free from the car. I have a hub/spindler puller but when I attach that, it just pushes the spindle into the bearing assembly and the bearing does not separate from the car. I tried some hammering to see if I could hammer it forward and it won't. Looking at the new piece, it appears that part of the bearing slides into the part attached to the car (steering assembly). It might be rusted? Everything I can find on the web site it for a 2 wheel drive and the back of the assembly ... part that slide in is accessable and can be hit from behind. I have 4x4 so the spindle is there. Any ideas how to get this off? I could try the puller more but don't want to damage the spindle or CV joint/boot. What should I do??