Since I was going to be pulling the axle apart for the new lockers to be installed, I decided to go with lower gearing as well. I only run 31-inch tires on my 'Zuki, but even with the 5:1 low-range gears in the transfer case, I still wanted more crawl ratio. In the end I decided on 4.56 ring-and-pinions down from my stock 3.72. (Note-Having now driven this Samurai off road, I would recommend going even lower to 5.13 gears.) Luckily for me the Samurai has a removable carrier-style axlehousing which means there is a third member which houses the ring-and-pinion along with the differential. This allowed me to pull the third members, box them up, and ship them off to West Coast Differential where a set of Sierra gears and the Lock-Right lockers could be installed. Thus no special tools were needed. Simply remove the axleshafts, pull some bolts to release the third member, and you're ready to send the parts away.