I'm running stock 3rd gen rims with ltx at2's and I need to know what the offset of the rims are. Ive read they are 17x8.
Or a back space measurement would work as well.

Thanks!

 

2003-2008 Dodge Ram 2500 & 3500 - 2wd & 4wd
Factory 17x7.5 Wheel Offset = +45 mm - Back Space = 6.00" Inches
Factory 17x8.0 Wheel Offset = +43 mm - Back Space = 6.20" Inches
Lug Pattern = 8 x 165

Here's a link. I just installed 18x9 Method 305-HD rims at +23mm offset (replacing the recently broken Centerlines in my sig). 295/70s sit pretty well under the fender (lip) with about 0.8 inch less positive offset than stock. I wish the new wheels had more offset, but I couldn't find heavy duty rims with more positive offset. You definitely want as much positive offset as you can get to preserve your front end systems. I found out the hard way with the zero offset wheels that came on the truck when I bought it. Everything steering and track bar related had to be replaced, some bits twice until I got different wheels with substantial positive offset.

 

HD steering (T-style) should be part of the recipe for running aftermarket wheels with less backspacing.