42T Ring and 12T Pinion Gear: Baja Rey, Rock Rey King Sling The entire diff rebuild combo

The entire diff rebuild combo pack replaces all necessary diff components so that you don't have to sacrifice diff integrity due to using old worn components

Lightweight and compact design -- great for traveling

with an upper and lower transition making the rear a more durable piece

complete system with controller

monster trucks and rock racers running up to 4s LiPo and weighing up to 6

42T Ring and 12T Pinion Gear: Baja Rey, Rock Rey King Sling The entire diff rebuild comboLosi LOS232019 The 42T Ring and 12T Pinion Gear: Baja Rey, Rock Rey by Losi is a quality built accessory. Product Specifications Part Type: Chassis Parts