Spidertrax 40 Spline Ultimate Unit Bearing 8 on 6-1/2" x 9/16" Studs winch using an anodizing process for

using an anodizing process for double corrosion resistance

No cast or mild steel parts found here

CNC machining allows us even finer precision

With over 3 years of competition testing and more top place finishes than we can count

It moves the alternator to the passenger side cylinder head

Spidertrax 40 Spline Ultimate Unit Bearing 8 on 6-1/2" x 9/16" Studs winch using an anodizing process forBuilt ground up for Ultra4 rock racers, the Spidertrax Ultimate Unit Bearing is truly the reinvention of the unit bearing itself. Genuine Timken bearings, full chromoly heat treated construction, left & right hand threaded spindle nuts, and a fully integrated drive slug makes the Ultimate Unit Bearing the only racing unit bearing of its kind. The Ultimate Unit Bearing, the last bearing you'll ever need. This Ultimate Unit Bearing uses 9 16" 18 studs