40 Spline 300M Mark Williams EZ Align Shafts

SKU: 50265

Options: Complete Kit
Price:
$2,315

Description

These axles are designed specifically for off-road enthusiasts to economically upgrade from a conventional truck floater to a bulletproof 40-spline floater setup. This assembly includes through-hardened and polished 300m axles with a "donut" spline adapter and cover that are made to fit a 2005 - 2010 OEM F350 unit hub. MW donut spline adapter’s splines are manufactured with a slight crown that allows some misalignment without bowing the axle shaft. (This bowing creates forces on the center section that will eventually destroy gears and bearings.) Gun-drilling is available for up to 37' long with a 7/8' hole. Weld cups for the hub are available for 3-1/2' (p/n 50290) and 4.00' (p/n 50295) housing tubes. 

Check out our axle shaft/unit bearing combo for the cheapest AND strongest 40 spline upgrade available!

Complete Kit

The complete kit is comprised of shafts made from 4340, flanges, caps and fasteners, O-rings, and retaining rings. 

Shafts Only

Made from through hardened 4340, feature true involute splines, polished, shot peened, and black oxide coated.

XL Shafts

For lengths longer than 42" please select this option. Made from through hardened 4340, feature true involute splines, polished, shot peened, and black oxide coated.

Download Service Bulletin #0100 axle order form to help gather your dimensions. Pricing is per pair. Axle lengths will be determined after the sale.  A representative from Busted Knuckle will call you to get measurements. 

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