Coleman's quick change rear end is built durable and tough to provide years of performance. This quick change rear end features aluminum side bells with external and internal gussets which eliminates premature failure of the ring and pinion by eliminating excessive flex in the housing. This flex is common in lightweight non-ribbed quick changes. The center section is also heavy duty for added durability. This quick change comes complete with aluminum bells, aluminum center section, ring and pinion your choice 4:11 or 4:86, aluminum spool, rear cover and axle tubes. The rear end is pre-assembled to the most exact tolerances and then broken down for shipping, it is easily reassembled without having to reset any backlash or pre-load. Options include Super Cover, Axles, Black Gold, Detroit Locker or can be set-up with your existing differential and axles. It is available in any track width and offset.