Rms alterkation track width?

Ok here is the scoop on the alter- measurements.

It's 1/8" wider than the 73-up stuff, or 3/8"wider than a drum brake, since 2008.

Before that it was 5/8"wider, to allow air ride to fit. When they stopped offering air ride in 2008 they narrowed it up 1/2" more per side.

But there are other brake kits available that can make it up to 3/4" per side less than that if desired.


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