If you want a new set of the cheapies, I've got a new in the plastic set of 5.29 Genuine brand gears 8inch that where warranty replacements that I never used. I'll sell them for $25 if you pay the UPS shipping. The ones they were replacing lasted me about 35-40K miles before the pinon gear started going out.

At least your friend didn't mess up one of the expensive brands.

93 4X4 ext-cab, auto, SR5, 3.4 V6, supercharged, 2.1" pulley, URD fuel mods, Aquamist WI, IPT valve body mod, dual cases, 4" superlift, Alcan springs, 33 BFG MT, ARB locked front & rear, 5.29 US Gears, RB 1" BL, 1.5" BJ spacers, TJM T-17, Warn m8000.