you da man

What are the specs on OEM 17" and 20" wheels for 2007 year model. I believe the 17" are 17x8 with 6.19" backspacing BUT what is the offset?

I have no clue what the OEM 20" wheel is. Thanks guys, I'm looking to get 20" wheels and trying to get an idea on backspacing with 20x9.

heavyboostin

some of the info is on the inside of the door on the sticker, not sure about the back spacing and what not

BroncoAZ

I have never seen a factory 20" wheel on a 3/4 ton. I believe the factory offset is +42mm. +25mm is a 5.5" backspacing like the hummer wheels.

bob4x4

The factory 20's are 1500 only (5 lug)

you da man

The wheels I'm looking at are 20x9 with a backspacing of 5.98 and choice of offset in +10mm, +24mm, and +30mm. I'm going with Nitto Terra Grapplers in 285/55/20. Just looking for something about an inch past fenders, maybe a little less. Thanks.

BroncoAZ

Backspacing and offset are basically the same thing measured differently. 20x9 with a 5.98" backspacing should sit about 1 inch further out.

Fisherguy

H2's have a little less back spacing than the stockers, about an inch difference I think.