# UMI Performance 64-72 GM A-Body 78-88 G-Body 1in Lowering Spring Rear A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction with a leading Sprint Cup chassis engineer, these springs are the best in the business. These springs are wound from 9254 CrSi premium wire and feature a linear 130 lb/in rate. The linear rate provides consistent handling characteristics which are important for Auto-x and Pro-Tour applications while the increase in stiffness reduces body roll and prevents the “floating” feeling so common with the A-body. These springs are suitable for Auto-x and Pro-Tour applications as well as corner carving/cruising. They have a tough black powder coat finish and UMI proudly manufactures these premium quality springs in the USA. As an industry leader in the muscle car suspension industry, UMI is proud to bring you the best spring in the business. Consistent rates and only the best materials (premium Chrome Silicon wire) ensure your car sits properly for years to come. Linear spring rates (530 lb/in front, 130 lb/in rear) provides a firm yet comfortable ride and incredible handling. No more floating feeling. Suitable for Pro-Tour, Auto-x and general cruising. This Part Fits: Year Make Model Submodel 1967 Buick Gran Sport Base 1978-1987 Buick Regal Base 1988 Buick Regal Custom 1982-1983 Buick Regal Estate Wagon 1987 Buick Regal GNX 1984-1987 Buick Regal Grand National 1978-1988 Buick Regal Limited 1982 Buick Regal Limited Turbo 1978-1982 Buick Regal Sport 1983-1986 Buick Regal T-Type 1970,1972 Buick Skylark 350 1967-1972 Buick Skylark Base 1968-1972 Buick Skylark Custom 1967-1968 Chevrolet Chevelle 300 1967-1969 Chevrolet Chevelle 300 Deluxe 1970-1972 Chevrolet Chevelle Base 1967-1972 Chevrolet Chevelle Concours 1969-1972 Chevrolet Chevelle Concours Estate 1969-1972 Chevrolet Chevelle Greenbrier 1971-1972 Chevrolet Chevelle Heavy Chevy 1967-1972 Chevrolet Chevelle Malibu 1968-1972 Chevrolet Chevelle Nomad 1968 Chevrolet Chevelle Nomad Custom 1971-1972 Chevrolet Chevelle SS 1967-1970 Chevrolet Chevelle SS 396 1970 Chevrolet Chevelle SS 454 1967-1972,1978-1987 Chevrolet El Camino Base 1978,1981-1986 Chevrolet El Camino Conquista 1968-1972 Chevrolet El Camino Custom 1979-1981 Chevrolet El Camino Royal Knight 1968-1972,1978-1987 Chevrolet El Camino SS 1978-1981 Chevrolet Malibu Base 1978-1983 Chevrolet Malibu Classic 1978-1980 Chevrolet Malibu Classic Estate 1978-1981 Chevrolet Malibu Classic Landau 1979-1980 Chevrolet Malibu Classic Sport 1979-1980 Chevrolet Malibu Estate 1979 Chevrolet Malibu Landau 1979 Chevrolet Malibu Police 1979-1980 Chevrolet Malibu Sport 1970-1972,1979,1981-1988 Chevrolet Monte Carlo Base 1983 Chevrolet Monte Carlo CL 1978-1981 Chevrolet Monte Carlo Landau 1986-1988 Chevrolet Monte Carlo LS 1978,1980 Chevrolet Monte Carlo Sport 1983-1988 Chevrolet Monte Carlo SS 1967-1971 Oldsmobile 442 Base 1967-1972,1980 Oldsmobile Cutlass Base 1980-1981 Oldsmobile Cutlass Brougham 1972 Oldsmobile Cutlass Cruiser 1967 Oldsmobile Cutlass Holiday 1980-1981 Oldsmobile Cutlass LS 1968,1971-1972 Oldsmobile Cutlass S 1967 Oldsmobile Cutlass Turnpike Cruiser 1978-1979 Oldsmobile Cutlass Vista Cruiser 1979 Oldsmobile Cutlass Vista Cruiser Brougham 1967-1972 Oldsmobile F85 Base 1967-1972,1978-1988 Pontiac Grand Prix Base 1981-1987 Pontiac Grand Prix Brougham 1984-1988 Pontiac Grand Prix LE 1978-1983 Pontiac Grand Prix LJ 1988 Pontiac Grand Prix SE 1978-1980 Pontiac Grand Prix SJ 1967-1972 Pontiac GTO Base 1970-1971 Pontiac GTO The Judge 1978-1981 Pontiac LeMans Base 1978-1981 Pontiac LeMans Safari 1967-1970 Pontiac Tempest Base 1967-1969 Pontiac Tempest Custom 1970 Pontiac Tempest GT 1967-1969 Pontiac Tempest Safari ## Details - **Price:** 284.18 CAD - **Vendor:** UMI Performance - **Type:** Lowering Springs ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 284.18 CAD | In stock | ## Images - Photo - Primary - User 1 - User 2 --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/umi-performance-64-72-gm-a-body-78-88-g-body-1in-lowering-spring-rear) > Updated: 2026-07-01