The Mittler Bros. Off-Road Rear Hub Accessory Kit — 40 Spline, Right includes every bearing, seal, O-ring, hardware piece, and bolt needed to complete or service a right-side off-road rear hub (5×5-1/2, 40-spline) assembly. Every component is matched and sourced by Mittler Bros. for compatibility with their off-road rear hub system — no hunting for individual part numbers or guessing at specs.
This is the right-side kit, which includes the right-hand spindle nut for 40-spline applications — note that left and right spindle nuts have opposite thread directions. For the left-side 40-spline off-road kit, see SKU 1400-404-L. For the 24-spline off-road kits, see SKU 1400-405-L (left) or 1400-405-R (right). For exact kit contents, contact Mittler Bros. at (800) 467-2464. Made in the USA.








