Mustang 1964-66 Already determined for this applications. Axle lengths Cut for Mustang Housing, small bearing. Bolt pattern 5 x 4½". As close as you can come for your OE axle replacement.
Currie Standard axle packages feature 2 custom cut and splined induction heat treated 1541 forged alloy 28 spline axle shafts. Small bearing applications. Packages include the pair of axle shafts, axle bearings, axle seals, 1/4" thick heavy duty retainer plates, wheel bolt pattern of your choice (up to 6 on 5 1/2") and wheel studs of your choice (up to 1/2" x 3". 5/8" studs available at extra cost).