20x10 & 20x9 Offset and Back Space Question(s)

bperry83 · Feb 14, 2013

Truck is a 99-04 F250. Going to be going up 6" with 35/12.5R20 Toyo MT's.

1) Which wheel would stick out the MOST past the fender? Second most? Third most?

Size: 20x10
Offset: -24
BackSpace: 4.50"

or,

Size: 20x10
Offset: -12
BackSpace: 5.00"

or,

Size: 20x9
Offset: +0
BackSpace: 5.00"

2) Is there much of a lip on a Fuel Hostage 20x9 with +0 offset and 5.00" Backspace?

3) 99-04 F250 lug pattern is 8 lug 8x170mm?

Thanks guys!

average · Feb 14, 2013

bperry83 said:
Size: 20x10
Offset: -24
BackSpace: 4.50"

I think that would stick out the furthest

F15CrewDawg · Feb 14, 2013

Took me a while to find it but TANK'S 250 had a post with some good information about this.

http://powerstrokearmy.com/forums/showthread.php?t=10943&highlight=factory&page=2

Given the information he provided, and assuming you have the 8" (I believe) factory wheels with a backspace of 4", I edited your post below. This is for the wheel only, the tire will most likely be wider than the wheel.

bperry83 said:
Truck is a 99-04 F250. Going to be going up 6" with 35/12.5R20 Toyo MT's.

1) Which wheel would stick out the MOST past the fender? Second most? Third most?

Size: 20x10
Offset: -24
BackSpace: 4.50"

This will move the lip of your wheel out approx 1.5"

or,

Size: 20x10
Offset: -12
BackSpace: 5.00"

This should be close to the factory offset so the lip would stick out about an inch further.

or,

Size: 20x9
Offset: +0
BackSpace: 5.00"

This one would move the lip out about 1 mm

2) Is there much of a lip on a Fuel Hostage 20x9 with +0 offset and 5.00" Backspace?

A 9" rim with 0 offset should have 3(ish) inches of lip, accounting for the depth of the core material.

3) 99-04 F250 lug pattern is 8 lug 8x170mm?

I believe that 99-up is 8x170. Some one with more knowledge might chime in and correct me.

Thanks guys!