needed to make a shim for the center support - about 1/8"; used some fiberglas scrap superglued together, then drilled to match bracket support hole layout. Fits OK, need to order some shorter, and longer, AN 3 bolts. AN3-30A bolts called out work OK on left and right end (after adding 2 extra 960 washers), but need 2 longer for middle as the parts list neglects the additional thinkness of the firewall support - about 1/4"