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 4340 axles with a DRIVE FLANGE spline adapter and cover that are made to fit an OEM 2005+ F350 unit bearing.
The center section spline is available for any spool / carrier requirements. Covers are anodized aluminum with low-profile sealing o-rings. 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!
Axle lengths will be determined after the sale. A representitive from Busted Knuckle will call you to get measurements.
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