does stock torion bar crank hurt 4x4? and will this tire n rim combo fit?

[03 GMC 1500HD 4X4]

i have an 03 1500hd. does cranking the stock torsion bars mess up your 4x4? im hoping to fit 305/70-17's

I have these rims http://www.4wheelparts.com/Wheels/MO955-Gloss-Black-Wheel.aspx?t_c=11&t_s=210&t_pt=100100&t_pl=5303&t_pn=W%2fPMO95579080312N and 305/70-17 maxxis buckshots with 50% tread left. will those fit?

[01lftdsilverado]

nope not at all,i have it done on my 01 silverado 1500,as long as you jack the front end up an do the torsion bars evenly you will be ok,im running 33x11x16 on my truck no rubs wears fine did mine up all the way an did a 4inch lift leveled my truck up front an did 2 inch blocks in rear totaling to 4 inches of lift any questions ask me

[2006ztruck]

Depending on the offset of the rim, you could possibly have to trim the bottom of the front bumper. Other than that the 4x4 will work fine. The ride just might be a little stiffer.

[Bimmer9938]

Make sure you get an alignment after you crank em, as you create more positive camber.