Rear Axle Housing

There are four lengths: stock (same length as stock SCX24 axles), +4mm (per side), +5mm (per side), and +8mm (per side). There are two differential covers, a "regular" one, and a pass-through that can be used for 6x6 type vehicles. Printer results vary. I've ran these successfully on a 6x6, using two rear housings, stock Injora shafts, some stock worm gears and bearings and they worked pretty well. Don't forget the axle lube/grease. If you experience binding, try shaving the diff cover and main housing where the worm gear pokes lovingly into the driveshaft.