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Old 06-17-2014, 01:43 PM
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Holton345's Avatar
Join Date: Jun 2013
Location: Yazoo City, MS
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Axle Track Width

I have a D44 rear and a D30 front, 2003 Sport.

Is the D44 a bit wider than the D30?

I have four matched rims and tires, all measurements are uniform per unit.

But when I measure the same spots on the front and rear tires the rear comes out being a half inch wider than the front. Is this due to the drum brakes on the rear, or is the D44 just a bit wider in stance than its weaker sibling the D30?

BTW, my toe-in is set to 1/8" narrower in front than the rear of my tires. Sound about right? The front measures from the point I chose on the tread as 73 7/8" front and 74" rear, while the rear axle is 74.5" front and rear.


2003 Shale Green Metallic TJ Sport
2013 Black JK Sport S

A yellow bird with a yellow bill landed on my windowsill. You know the rest...
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Old 06-17-2014, 02:07 PM   #2
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Join Date: Nov 2011
Location: California/Montana
Posts: 3,196
They both should be 60.5" or very close to that end to end.

Check out the axle part of this page:

Also, I wouldn't do alignment with tire tread. Tires are far from perfect and the tread likely isn't the same spacing on both sides. You are better off removing the wheels and clamping pieces of straight metal on there (I used 1" square aluminum), measure out the size of your tire on the piece of metal, and measure off that.
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