I used JB Weld on a used EHC I purchased that came with them removed - they were broken out of the case. I JB'd 2 slightly longer cone head tapered bolts from a hardware store and used 'Kaptains' advice(on his website) of rubber/foam mounting it and so far no problems after bout 2,000 miles. Oh, I also cut a piece of I believe 1/4"(width between mounted harness connectors) plexiglass the width and height(from the EHC) of the 2 plastic harness connectors and then inserted it between the 2 mounted connectors and electrical taped around all 3 pieces to hopefully give more strength and rigidity from them pulling against(front & rear harness) each other with vibration - Axel incorporated a more rigid mounting plate on his new version EHC. I also liquid electrical taped the seams of the plastic harness boxes to hopefully waterproof - my original EHC had gotten moisture(corrosion tracks) in from the bottom between the metal male & female connection and corroded a main pin off. I finely drilled it out and purchased a pin from a computer store and solded it in and it works but am running the purchased used one.