Top Quality CNC Well-Machined rear coil spring spacers Fit Many 60's thru 90's Rear Wheel Drive Ford Trucks These KIPA Suspension coil spacers are a simple and cost-effective way to lift the rear of your coil spring suspension vehicle 1". Their construction allows long life, with no sagging, unlike polyurethane coil spacers that deteriorate over time Made of Solid billet Aluminium, It's much more stronger and durable to ensure vehicle performance. Much easier than messing with air shocks. Increased ground clearance. Please do match the sizes before purchasing, make sure your stock vehicle has enough clearance inside to sit flush onto the axle. Gold anodized Looks really nice for superior Protection. Stay in place and never fall out. Specificaiton: The top diameter is 2.375" (2-3/8") The diameter of the top of the lift block where the spring is centered on. And It will NOT fit any of the fox body styles. These coils spacers are designed to lift the rear of your car or truck 1" when placed under the rear coil springs. A very simple yet effective design that is a permanent solution. twist-in style spacers that can come loose after time and stiffen your ride. They also cost much less then longer or custom made springs. These are a great way to lift up the rear of your vehicle for a better stance or provide more wheel clearance