DESCRIPTION: These are replacement 0 & 3 rear mounts for RPM #73612, #73614 & #73615 Gearbox Housings for TRA 1:10 scale 2WD vehicles. Each package contains 1 left 0 rear mount, 1 right 0 rear mount, 1 left 3 rear mount, 1 right 3 rear mount & 2 gear cover mounts. TechNOTES: For use with RPM #73612, #73614 & #73615 Gearbox Housings only. They will not work with stock TRA or any other aftermarket gearboxes.