If this is your first gear install then starting with a front axle like our Dana 44 is a great recommendation. The front axle sees less constant use and is thus less likely to fail should your gear install be less than perfect. It is also best to start with a housing with the old gears and differential still installed. This lets you determine the original backlash, preload, and bearing and shim settings, which is helpful for the regear. Our housing had the diff removed and the old carrier bearing and shims long gone, a setback requiring added work.