3one5
New member
- 5
- 4
- 3
- Location
- Northern Colorado
I’d like to keep things as close to stock as possible. Going to go with a different set of wheels for ease of use. What is the proper wheel offset?
-
Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!
M1102 wheel offset
- Thread starter 3one5
- Start date
Elkjay
New member
- 6
- 5
- 3
- Location
- Denver Colorado
I don’t know the offset but wheels from my 2016 2500 Ram fit perfectly. Offset appears to be the same as the original 16.5” wheels.
- 2,975
- 4,356
- 113
- Location
- Olympia/WA
Lots of discussions about this in the HMMWV forum (exact same wheel/tire assembly used for both).
only one I found mentioning stock offset was this
The stock HMMWV wheels are +63.5 offset. 9" rim width, 7 inch backspacing = 2.5" + offset = 63.5mm+ offset
(as far as I know, the math is 1/2 the width of the rim (4.5"), then use the difference between the backspacing and the rim width (9" rim, 7" offset) and subtract the difference from the 1/2 rim width (4.5" minus 2" equals 2.5" offset)
if it's closer to the outside face of the wheel, it's positive, and if it's closer to the back side (so the wheel sticks out further) it's negative.
negative gives you a wider stance, but puts more stress on the bearings.
For a trailer though, as long as it's not sticking way out past the fender I don't think you're really going to have any issues.
The axle is rated for something like 7k or 8k lbs, while the trailer itself is rated for 4200, so not really that much stress on the bearings (unless you plan to load it up really heavy past the military ratings)
the -18 offset seems pretty popular with the HMMWV crowd for 9" or 9.5" wide rims.
only one I found mentioning stock offset was this
The stock HMMWV wheels are +63.5 offset. 9" rim width, 7 inch backspacing = 2.5" + offset = 63.5mm+ offset
(as far as I know, the math is 1/2 the width of the rim (4.5"), then use the difference between the backspacing and the rim width (9" rim, 7" offset) and subtract the difference from the 1/2 rim width (4.5" minus 2" equals 2.5" offset)
if it's closer to the outside face of the wheel, it's positive, and if it's closer to the back side (so the wheel sticks out further) it's negative.
negative gives you a wider stance, but puts more stress on the bearings.
For a trailer though, as long as it's not sticking way out past the fender I don't think you're really going to have any issues.
The axle is rated for something like 7k or 8k lbs, while the trailer itself is rated for 4200, so not really that much stress on the bearings (unless you plan to load it up really heavy past the military ratings)
the -18 offset seems pretty popular with the HMMWV crowd for 9" or 9.5" wide rims.
Last edited:
- 6,986
- 2,523
- 113
- Location
- Montevideo/Uruguay
Those numbers are "almost" correct...
FWIW, the nominal rim width is 8.25" and the total width measures ~9.61". Having a backspace of almost 7" (6.97") the resulting offset is +2.17" or +55mm.
See this post....