YUKON 35 SPLINE ZIP LOCKER FOR FORD 9" seat the Spidertrax Ultimate Unit Bearing

the Spidertrax Ultimate Unit Bearing is the perfect fit for an Ultra4 solid or IFS axle

No Warranty on this product

With up to five total sealing surfaces

with a top layer of memory foam to help the cushion form to your body

120 wall DOM

YUKON 35 SPLINE ZIP LOCKER FOR FORD 9" seat the Spidertrax Ultimate Unit BearingThe Yukon Zip Locker is the latest in on demand traction. Its air operated design allows you to switch from an open differential to 100% lockup when you need it, giving you the ultimate in driver selectability. The Yukon Zip locker is an air operated locker that provides selectable traction for off road or street use. This unit features 4320 Chrome Moly internals for added strength. Assembled in the USA! compressor sold separately. All Zip Lockers are