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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 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 representative from Busted Knuckle will call you to get measurements.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Items returned to busted knuckle off-road will receive a minimum 20% restocking fee if the reason for return is based on the customers actions (examples: no longer need, changed mind). Restocking fees are based on supplier fees and may vary.
Items may be returned within 90 days of shipment is unused and in original packaging. No items are able to be returned after 90 days from shipment. Returns are not accepted for parts that have been used or the original packaging is missing or damaged.
Shipping and freight costs are non-refundable.
Labor is non-refundable. Custom built items are non-refundable.
Warranty returns are void if the vehicle is used for racing or the damage is caused due to accidents or abuse.