All servo hole are trheaded for 3 mm screws (included in the kit)
ATTN: 1 Set include :1 servo tray, 6 post, 1 steering plate, 1 shim, 1 brake plate, 1 center cap pice, and all hardware needed .
FIT: MCD X-4 Rally vehicles and the RR V-4 With the Enclosed Center Differential and stock plastic engine carrier (+ or - Feb 2011 or later),Cheetah, Monster, W5 SCT and FT models.
If you use MCD alloy engine carrier, you need to make little modification to the brake plate, or order M-305 special brake plate to perfect fit. (any question contact us )
If you can not see the Ring Gear on the Center differential then this one is for you.