Part Number: 51-0981 UOM: 1 - EA Summary:Frame hardtail is weld on type and includes weld on frame plate. Accepts drum type brake. Hardtail should be aligned for chain clearance prior to final welding. This hardtail fits hardtail rigid frames. The distance between the inside to inside of the axle plates is 9-5/16" . DIY hardtailing is easy to install as the alignment is accomplished in the mount design provided. Welding should be performed by a skilled welding technician. Custom application on 1973-1978 XL. *Note: UPS may consider this part as packaged " oversize" for shipment, as compared to the actual weight, which will result in higher shipping costs. Fitment: XL 1973-1978 Tech. Notes:The width of the tail section should be exactly 9-1/8" . Due to the welding process this may vary slightly & builder will need to modify accordingly.Country of Origin: Imported