View Poll Results: What brand wheels are on your truck?
Mopar (stock)
167
61.17%
XD Series
21
7.69%
Weld Racing
0
0%
Cragar
7
2.56%
Diamo
2
0.73%
Mickey Thompson/Dick Cepek
11
4.03%
KMC
1
0.37%
Pro Comp
8
2.93%
Moto Metal
15
5.49%
American Racing
9
3.30%
Eagle Alloys
7
2.56%
OTHER (please specify in a post)
25
9.16%
Voters: 273. You may not vote on this poll
Wheels
Thread Starter
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Administrator
Joined: Jul 2007
Posts: 24,686
Likes: 21
From: South Georgia/East Florida
Wheels
A quick poll of what wheels people are using, then some basic wheel terminology and general information.
Hub Diameter or center bore is the hole at the center of the wheel.
Rear spacing or back spacing is the distance from the backside of the wheel mounting pad to the outside of the rim flange.
Offset: The distance from the centerline of the wheel to the mounting surface of the wheel.
Negative offset: When the back of the bolt pad is closer to the inside of the wheel; when mounting surface is inboard of the rim centerline.
Positive offset: When the back of the bolt pad is closer to the street side of the wheel; when the mounting surface is outboard of the rim centerline.
Bolt pattern or lug pattern or bolt circle is determined by the number of bolt holes and the bolt circle diameter. The bolt pattern on a 3rd Gen 1500 non MegaCab is 5 on 5.5 and the bolt pattern on all MegaCabs and 2500 series trucks is 8 on 6.5.
Hub Diameter or center bore is the hole at the center of the wheel.
Rear spacing or back spacing is the distance from the backside of the wheel mounting pad to the outside of the rim flange.
Offset: The distance from the centerline of the wheel to the mounting surface of the wheel.
Negative offset: When the back of the bolt pad is closer to the inside of the wheel; when mounting surface is inboard of the rim centerline.
Positive offset: When the back of the bolt pad is closer to the street side of the wheel; when the mounting surface is outboard of the rim centerline.
Registered User
Joined: Feb 2009
Posts: 3
Likes: 0
From: Bethany, Oklahoma
I have 2003 20" wheels, I was wondering if anyone knows what the backspacing measurements are? I am trying to go with a lift and one of the lifts I am looking at said for it to work I would have to have a minimum of 4.5" what does that mean?
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Rookie
Joined: Feb 2009
Posts: 52
Likes: 0
From: Fort Stewart, Ga.
this is how you measure your backspacing guys:
How to Measure Wheel BackSpace
Items required to measure wheel backspace: 
Tape measure Straight edge Wheel w/o tire (preferred)
The easiest way to measure backspace is to lay the wheel face down onto the ground so the backside of the wheel is facing up. Take a straight edge and lay it diagonally across the inboard flange of the wheel. Take a tape measure and measure the distance from where the straight edge contacts the inboard flange to the hub mounting pad of the wheel. This measurement is backspace. The above photo shows three wheels with 2",3", & 4" backspace.
How to Measure Wheel BackSpace
Items required to measure wheel backspace: Tape measure Straight edge Wheel w/o tire (preferred) The easiest way to measure backspace is to lay the wheel face down onto the ground so the backside of the wheel is facing up. Take a straight edge and lay it diagonally across the inboard flange of the wheel. Take a tape measure and measure the distance from where the straight edge contacts the inboard flange to the hub mounting pad of the wheel. This measurement is backspace. The above photo shows three wheels with 2",3", & 4" backspace.