Allstar Performance Ford 9" 31 Spline Axle - 29" Cut to Fit H778C01XS The MAC Air utilizes a

The MAC Air utilizes a dual filtering system that increases performance and prevents premature clogging

125 in Thick

Once supports are in place

33 in Rectangular Port

for increased longevity

Allstar Performance Ford 9" 31 Spline Axle - 29" Cut to Fit H778C01XS The MAC Air utilizes aCut to fit 31 spline axles for Ford 9" rear ends are a great alternative to custom axles for street, drag racing and circle track use. Axles are drilled for . 687" press in style wheel studs and have multiple wheel bolt patterns for 5 on 4 1 2", 4 3 4" and 5" bolt circles. Axles have . 470" thick flanges with a 5. 94" outer diameter and a 3. 06" hub register to center most rotors and drums. Axles with bearings have a 3. 150" O. D. bearing installed