Severe service aluminum case (4.00" bore), lightweight steel spool, aluminum caps, 1350 series pinion yoke, ball / ball bearing pinion support, large pinion 10" pro gear, transporter, 3 quarts of gear oil

Severe service aluminum case (4.00" bore), lightweight steel spool, steel caps, 1350 series pinion yoke, tapered / ball bearing pinion support, large pinion 10" pro gear, transporter, 3 quarts of gear oil

Severe service aluminum case (3.812" bore), lightweight steel spool, pinion yoke, ball / tapered bearing pinion support, large pinion 10" pro gear, transporter, 3 quarts of gear oil

Aluminum through-bolt case, locker, pinion yoke, tapered / tapered pinion support, 9" 8620 gear, transporter and 3 qts of gear lube

Aluminum case, aluminum spool, ring gear bolts, ball / tapered pinion support, coupler, standard pinion gear, transporter, and 3 quarts of gear oil

Aluminum case, aluminum spool, pinion yoke, ball / tapered pinion support, standard pinion pro gear, transporter, 3 quarts of gear oil

Aluminum case, lightweight steel spool, pinion coupler, ball / tapered pinion support, large pinion pro gear, transporter, 3 quarts gear oil

Aluminum case, lightweight steel spool, MW pinion yoke, ball / tapered bearing pinion support, large pinion pro gear, transporter, and 3 quarts of gear oil

MW nodular iron case, standard spool, stock Ford yoke, tapered / tapered pinion support, ring and pinion

Nodular iron case, 3.062" bore, locker, Ford pinion yoke, tapered / tapered pinion support, 8620 gears, transporter, and 3 qts of gear oil

Aluminum case, lightweight steel spool, MW pinion yoke, ball / tapered bearing pinion support, standard pinion pro gear, transporter, and 3 quarts of gear oil

Aluminum case, clutch-type posi unit, Ford pinion yoke, tapered / tapered bearing pinion support, 8620 gears, transporter, 3 quarts of gear oil.