Joker Machine’s 3-D open beltdrive covers are made to directly bolt onto BDL drives or can be attached to Primo/Rivera drives with Joker’s special adapter plate and spacing standoffs. Available engraved with the Joker, Hot Head, or 7-Out logos, the 3-D open beltdrive covers come with all necessary installation hardware. Note: The CNC-machined T-6 aluminum covers require an adapter plate for Primo/Rivera IV and Brute V applications.