UMI 64-72 GM A-Body Coil Over Conversion Brackets Kit -1in to +1in Ride Height - 225lb Spring Rate - 4069-5

The UMI bolt-in rear coilover kit provides comprehensive adjustments for ride height, spring rate, and damping, in addition to enabling trailing arm adjustments for precise calibration of the instant center. This kit is equipped with a fortified upper...

UMI 64-72 GM A-Body Coil Over Conversion Brackets Kit -1in to +1in Ride Height - 175lb Spring Rate - 4069-4

The UMI bolt-in rear coilover kit provides comprehensive adjustments for ride height, spring rate, and damping, in addition to enabling trailing arm adjustments for precise calibration of the instant center. This kit is equipped with a fortified upper...

UMI 64-72 GM A-Body Coil Over Conversion Brackets Kit -2in to -3in Ride Height - 250lb Spring Rate - 4069-3

The UMI bolt-in rear coilover kit provides comprehensive adjustments for ride height, spring rate, and damping, in addition to enabling trailing arm adjustments for precise calibration of the instant center. This kit is equipped with a fortified upper...

UMI 64-72 GM A-Body Coil Over Conversion Brackets Kit -2in to -3in Ride Height - 225lb Spring Rate - 4069-2

The UMI bolt-in rear coilover kit provides comprehensive adjustments for ride height, spring rate, and damping, in addition to enabling trailing arm adjustments for precise calibration of the instant center. This kit is equipped with a fortified upper...

UMI 64-72 GM A-Body Coil Over Conversion Brackets Kit -2in to -3in Ride Height - 175lb Spring Rate - 4069-1

The UMI bolt-in rear coilover kit provides comprehensive adjustments for ride height, spring rate, and damping, in addition to enabling trailing arm adjustments for precise calibration of the instant center. This kit is equipped with a fortified upper...

UMI 64-72 GM A-Body Rear Coilover Conversion Brackets - 4069

The UMI bolt-in rear coilover kit provides comprehensive adjustments for ride height, spring rate, and damping, in addition to enabling trailing arm adjustments for precise calibration of the instant center. This kit is equipped with a fortified upper...

UMI Performance 68-70 GM A-Body Corner Max Street Handling Race Package - Red - 406402-R

UMI’s Corner Max front end kits are a comprehensive system with our best corner carving parts under one easy to find part number. The Corner Max system combines geometry corrected a-arms with tall ball joints, higher rate springs, UMI rebound adjustable...

UMI Performance 68-70 GM A-Body Corner Max Street Handling Race Package - Black - 406402-B

UMI’s Corner Max front end kits are a comprehensive system with our best corner carving parts under one easy to find part number. The Corner Max system combines geometry corrected a-arms with tall ball joints, higher rate springs, UMI rebound adjustable...

UMI Performance 64-72 GM A-Body Rear Coilover Kit (225LB Spring Rate) - 4057-225

UMI’s bolt-in rear coilover kit allows full ride height, spring rate and damping adjustments, while trailing arm adjustment enables fine tuning of instant center. The reinforced upper mount is a direct bolt-in (requiring one additional hole to be...

UMI Performance 64-72 GM A-Body Rear Coilover Brackets Bolt In (175LB Spring Rate) - 4057-175

UMI’s bolt-in rear coilover kit allows full ride height, spring rate and damping adjustments, while trailing arm adjustment enables fine tuning of instant center. The reinforced upper mount is a direct bolt-in (requiring one additional hole to be...

UMI Performance 64-72 GM A-Body Rear Coilover Kit Control Arm Relocation Bolt In - 4057

UMI’s bolt-in rear coilover kit allows full ride height, spring rate and damping adjustments, while trailing arm adjustment enables fine tuning of instant center. The reinforced upper mount is a direct bolt-in (requiring one additional hole to be...

UMI Performance 78-88 GM G-Body 82-03 S10/S15 Front Kit Use w/ Coilover A-Arms - 3058-850

Viking's front coilover kit pairs perfectly with UMI's 3057 a-arm and provides awesome performance at a great price point. Road race and auto-x cars can have increased rate and grip with an 850 lb/in spring paired with Viking Crusader AT valving. This...