Stage 8 Locking Systems offers the opportunity to restore the dependability of Dana 44 and Dana 60 front assemblies with these Stage 8 X-Lock locking spindle nuts. These patented locking spindle nuts are guaranteed to never loosen, even under the most extreme conditions. The X-Locks were developed for the rugged life of competitive off-road vehicles. Any vehicle with Dana 44 and Dana 60 front assemblies can be retrofitted with the X-Locks for dependable, long service life and save thousands in repair dollars. Stage 8 X-Locks are laser-cut from 4130 steel and can be easily installed without any special tools. X-Locks are heat-treated and through-hardened and will maintain bearing preload value. They can be easily locked within 1/2 degree of any position.