Originally Posted by starquestbd22
A 285/70/17 should fit on a third or fourth gen with no problems. It's only one size wider and actually a hair shorter than the stock 20" tire size.
A 315/70/17 will not fit on a 2006-up truck without spacers or aftermarket wheels with less offset (or more negative offset). I believe you could fit this size on a 2005 or older truck. Everything I have read indicates that you can run a 35x12.50 on these trucks and a 315/70/17 is only 12.4" wide and 34.3" tall.
Well i have an 02 its the first year of the new body style, it looks like there is plenty of room to squeeze them in there but is like to know for certain before I buy anything because I really don't like the idea of spacers.