BMR 64-72 GM A-Body Coilover Conversion Kit Rear Adjust Shock Mt w/o CAB - Black HammertoneIncrease traction and add ride height adjustability to the rear of your 1964 1972 GM A Body with a Coil Over Conversion Kit from BMR Suspension. OE style lowering springs can drop the vehicle, but do so at the expense of suspension and shock travel. By utilizing a conventional coil over, the vehicle can ride at a lower ride height, while still retaining full suspension travel. BMR manufactures its Coil Over Conversion Kits from CNC laser cut, CNC