So I just bought my '12 FX4 and it came w/ 20 Rockstar's w/ stock Pirelli tires on it.... I'm looking to upgrade the tires, but first want to know if the stock wheels and these wheels are the same size and offset? Pretty sure the Rockstars are 20x8.5... did they come in the same offset/backspacing as stock??
Thanks...I will try to post up some pics soon

 

No, I believe they have less backspacing than the OEM 20's. It should be listed on KMC's website, or any website that sells the KMC XD series.

 

rockstars came most in x9 with a +18 offset, 0 offset, or a negative offset i cant remember. either way this will be much lower than stock. to confirm just crawl under the truck and look at the backside of the spokes. youre looking for something like 20x9jj 18et

why are you wondering this? are you worried about rubbing or??

 

Thanks for the the replies guys....
I wanted to know if the XD's I had o n there now were the same offset as stock since I'm learning that they are both 20x8.5 (not 9.0 on the XD's like I orig. thought)....
I have a set of new Nitto TE from my last truck, 305/55/20 what I was going to try on this truck w/ the XD's.

Instead, I just ordered 4 new Toyo Open Country AT2's (285/55/20) for now for the winter. Gotta get rid of those Pirellies (Anyone wanna buy them!!??) I'll decide what to do w/ the 305 nittos in the spring and go from there....

Thanks for the replies guys!!!
Tony