# UMI Performance 64-72 GM A-Body Front Coil Over Conversion Brackets Weld In UMI P/N 4054 is used to provide a double shear upper attachment point for a true 2-1/2” racing coilover shock and spring. Most applications will use an industry standard 7” stroke double rod end shock and 12” x 2-1/2” diameter coilover spring. The bracket bolts to the upper a-arm mount in order to properly locate the unit for welding. Prototyping was completed using Afco Pro-Tour Elite shocks. Your brand may require additional modification. Please contact UMI for sizing. Heavy fabrication is required as the 4054 is intended for use on high-end, high performance Pro-Touring builds. UMI components are 100% manufactured, tested, and raced out of Philipsburg, PA-USA. This Part Fits: Year Make Model Submodel 1970,1972 Buick Skylark 350 1964-1972 Buick Skylark Base 1968-1972 Buick Skylark Custom 1964-1969 Buick Special Base 1964-1967 Buick Special Deluxe 1964-1968 Chevrolet Chevelle 300 1965-1969 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 1964-1972 Chevrolet Chevelle Malibu 1964-1965 Chevrolet Chevelle Malibu Super Sport 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 1966 Chevrolet Chevelle Super Sport 396 1964-1972 Chevrolet El Camino Base 1968-1972 Chevrolet El Camino Custom 1968-1972 Chevrolet El Camino SS 1970-1972 Chevrolet Monte Carlo Base 1964-1971 Oldsmobile 442 Base 1964-1972 Oldsmobile Cutlass Base 1972 Oldsmobile Cutlass Cruiser 1964-1967 Oldsmobile Cutlass Holiday 1968,1971-1972 Oldsmobile Cutlass S 1967 Oldsmobile Cutlass Turnpike Cruiser 1964-1972 Oldsmobile F85 Base 1964-1966 Oldsmobile F85 Deluxe 1966 Oldsmobile F85 Holiday 1964-1972 Pontiac GTO Base 1970-1971 Pontiac GTO The Judge 1964-1972 Pontiac LeMans Base 1972 Pontiac LeMans Luxury 1969-1970 Pontiac LeMans Safari 1970-1972 Pontiac LeMans Sport 1971 Pontiac LeMans T37 ## Details - **Price:** 306.13 CAD - **Vendor:** UMI Performance - **Type:** Shocks and Struts ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 306.13 CAD | In stock | ## Images - Photo - Primary - User 2 - User 3 - User 1 --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/umi-performance-64-72-gm-a-body-front-coil-over-conversion-brackets-weld-in) > Updated: 2026-07-14