FRAME, CHASSIS, & MUDFLAPS

BESTfit Set Of 6, 4 Inch 1.5 Degree Aluminum Alloy ShimsThe provided shims are crafted from heavy-duty aluminum alloy, designed to effectively address caster angle issues. Each shim boasts a width of 4 inches and an angle of 1.5 degrees. With a spring...

BESTfit Set Of 6, 4 Inch 1.0 Degree Aluminum Alloy ShimsThe provided shims are constructed from heavy-duty aluminum alloy and are designed to address caster angle issues effectively. Each shim measures 4 inches in width and has a 1-degree angle. With a...

BESTfit Set Of 6, 4 Inch 0.5 Degree Aluminum Alloy ShimsThe provided shims are constructed from heavy-duty aluminum alloy, designed to correct caster angle issues. Each shim measures 4 inches in width and has a 0.5-degree angle. With a spring pad length...

BESTfit Set Of 6, 4 Inch 2.0 Degree Aluminum Alloy ShimsThe offered shims are crafted from heavy-duty aluminum alloy and are designed to correct caster angle issues. With a width of 4 inches and a 2-degree angle, these shims feature a 6 1/2-inch spring...

BESTfit 22 Inch C-C Fixed Style Torque Rod With 4.375 Inch Bolt Mounting HolesThe Torque Rod designed for rear air suspensions features a 22.00-inch center-to-center fixed style with 4.375-inch center-to-center bolt mounting holes. Sold individually,...

BESTfit Spacer Block For Mack With 4 Inch Wide SpringThe Spacer Block is designed for the spring end bushing and is compatible with various rear suspensions including SS34, SS38, SS44, SS50, ST34, SWS573, SW, and SWS. It fits SS34 and SS38 with split...

BESTfit Spring End Bushing Insulator Box - Replaces 25168110, 52QK418AP4, 52QK418BP4, R303688 & CS71632BThe Insulator Box is designed for the spring end bushing and is compatible with various suspension systems, including Rear SS34, SS38, SS44, SS50, and...

BESTfit Trunnion For 3.5 Inch Trunnion Shaft & 4 Inch Spring - Replaces 25130237 & 39QK55The Trunnion, suitable for SS38-44 Series, features a 3 1/2-inch shaft and comes with 1-A758 bushing. Sold individually, it does not include ears and serves as an...

BESTfit U-Bolt Top Plate - Replaces 587752, 58775-002, 65084, 65084-000, 11QK497M2, R3015721The U Bolt Top Plate, replacing OE numbers 587752, 58775002, 58775-002, 65084, 65084000, 65084-000, 11QK497M2, and R3015721, is sold individually. It ships...

BESTfit Air Spring For Mack MaxAir Suspension - Replaces 9647, 58786002, 587862, 64917002, 25161909 & 57QL417MThe Air Spring, serving as a replacement for OE numbers 9647, 58786002, 587862, 64917002, 25161909, and 57QL417M, ships directly from the...

BESTfit Replacement Suspension Air BagThe airbag is designed with a pressure rating of 80 PSI and a height of 12 inches. Its bottom plate is constructed of plastic, featuring a 2-hole top plate and a 2-hole bottom plate. The bottom plate alignment is...

BESTfit Front Fender Extensions Fit HinoThe fender extension is intended for the passenger side and is sold individually. It's manufactured in North America. Please note that inspection and test fitting (also known as dry fitting) is required on all...