The Mittler Bros. Steel Drive Flange — 40 Spline, 5×5-1/2 is a precision-machined steel drive flange for Grand National floater rear-end hub applications requiring the wider 5×5-1/2 bolt circle. The drive flange mounts to the 40-spline axle and provides the 5×5-1/2 bolt pattern for wheel attachment — used in specific Late Model and circle track applications where the larger bolt circle is required.
Cap and bolts are included with this drive flange. For the same 40-spline 5×5-1/2 flange without cap and bolts, see SKU 1400-043-1. For the 5×5 (not 5×5-1/2) bolt circle in steel, see SKU 1400-006. For aluminum drive flange options, see the Standard 6061 (SKU 1400-033-6061) and Ultimate 7075 (SKU 1400-033-7075). Made in the USA.








