Spidertrax 35 Spline Ultimate Unit Bearing 8 on 6-1/2" x 9/16" Studs Side:1 Left & 1 Right lightweight

lightweight

All tab kits are laser cut 4130 Chromoly

each aluminum seal housing is designed to be securely locked inside the Spider 9 housing

each cup has an integrated caliper mounting tab to easily install the bolt-on Spidertrax Full Floating Caliper Mount Kit

Spidertrax 35 Spline Ultimate Unit Bearing 8 on 6-1/2" x 9/16" Studs Side:1 Left & 1 Right lightweightBuilt 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