Originally Posted by HemiLonestar
02-05 have the same front suspension, 2wd/4wd respectively. The front frame and suspension was revamped a bit in 06, still uses coils for 2wd, but instead of t-bars they went to struts for 4wd. 06-08 should have identical suspensions, I don't see why an 06 kit wouldn't fit an 07. An 05 kit should not fit an 07 though.
I'm no expert (new to these Rams) but this is what I have noticed from my research. guy at work has an 05 with torsion bars and mine is an 06 with struts.