I am looking at putting 39.5s under 6" lift with fender trimming. I have also heard that I may need to move the front axle forward to prevent tub contact. How do you do that? Do you simply shear off the existing centering pin and put a bolt through at another location to act as a new centering pin? Is this right? How hard is it to do? How far forward can/should I move it? And are there any other things I should take into consideration (besides driveshaft length)? Is it going to impact my shock alignment, steering, or anything else? Just a few questions! Brian Check out <a target="_blank" href=http://tx85gmcguy.alloffroad.com>My Jimmy</a> with all her projects!