UMI Performance 78-88 GM G-Body 82-03 S10/S15 Upper & Lower A-arm Coilover Only
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
Tremendous front grip and a host of features can be yours with UMI’s 305756-3 kit. This a-arm kit enables 10 degrees caster while maintaining standard track width and wheelbase. The lower shock mount is removable to allow spring/shock changes at the track. The tall lower ball joint optimizes roll center, camber gain, center of gravity and lowers ride height by ½”. Delrin bushings help the lower a-arm to travel smoothly for bind-free operation. The new lower a-arm works in conjunction with our popular 3056-3 adjustable upper arm which features minimal shim adjustability, 1” taller-than-stock ball joints and super smooth rod ends. Also included on the lower a-arm is a double shear sway bar mounting system which accepts UMI sway bars and many other manufacturers stock location aftermarket units. An aluminum steering stop is adjustable and limits steering lock to prevent tire and wheel damage. Available in UMI red or black powder coat. 100% designed, manufactured and raced with pride in the USA. Battle tested on the iconic UMI Green Machine.
Installation InstructionsInstallation Instructions
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1978-1987 | Buick | Regal | Base |
| 1982-1983 | Buick | Regal | Estate Wagon |
| 1987 | Buick | Regal | GNX |
| 1984-1987 | Buick | Regal | Grand National |
| 1978-1987 | Buick | Regal | Limited |
| 1982 | Buick | Regal | Limited Turbo |
| 1978-1982 | Buick | Regal | Sport |
| 1983-1986 | Buick | Regal | T-Type |
| 1978-1987 | Chevrolet | El Camino | Base |
| 1978,1981-1986 | Chevrolet | El Camino | Conquista |
| 1979-1981 | Chevrolet | El Camino | Royal Knight |
| 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 |
| 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 |
| 1991 | Chevrolet | S10 | Baja |
| 1982-2003 | Chevrolet | S10 | Base |
| 1982-1990 | Chevrolet | S10 | Durango |
| 1992-1993 | Chevrolet | S10 | EL |
| 1994-2003 | Chevrolet | S10 | LS |
| 1982-1989 | Chevrolet | S10 | Sport |
| 1994-1998 | Chevrolet | S10 | SS |
| 1982-1992 | Chevrolet | S10 | Tahoe |
| 1999-2003 | Chevrolet | S10 | Xtreme |
| 1994-2003 | Chevrolet | S10 | ZR2 |
| 2002-2003 | Chevrolet | S10 | ZR5 |
| 1983-1994 | Chevrolet | S10 Blazer | Base |
| 1987-1989 | Chevrolet | S10 Blazer | High Country |
| 1994 | Chevrolet | S10 Blazer | LT |
| 1983-1990,1992 | Chevrolet | S10 Blazer | Sport |
| 1983-1988,1990-1994 | Chevrolet | S10 Blazer | Tahoe |
| 1991-1994 | Chevrolet | S10 Blazer | Tahoe LT |
| 1981-1986 | GMC | Caballero | Amarillo |
| 1978-1987 | GMC | Caballero | Base |
| 1981 | GMC | Caballero | Conquista |
| 1978-1987 | GMC | Caballero | Diablo |
| 1978-1980 | GMC | Caballero | Laredo |
| 1981 | GMC | Caballero | Royal Knight |
| 1982-1990 | GMC | S15 | Base |
| 1987 | GMC | S15 | EL |
| 1983,1986-1988 | GMC | S15 | Gypsy |
| 1982-1990 | GMC | S15 | High Sierra |
| 1982-1990 | GMC | S15 | Sierra Classic |
| 1982 | GMC | S15 | Sierra Grande |
| 1983-1991 | GMC | S15 Jimmy | Base |
| 1983-1990 | GMC | S15 Jimmy | Gypsy |
| 1985 | GMC | S15 Jimmy | High Sierra |
| 1983-1990 | GMC | S15 Jimmy | Sierra Classic |
| 1991 | GMC | S15 Jimmy | SLE |
| 1991 | GMC | S15 Jimmy | SLS |
| 1991 | GMC | S15 Jimmy | SLT |
| 1988-1989 | GMC | S15 Jimmy | Timberline |
| 1991-1993 | GMC | Sonoma | Base |
| 1992 | GMC | Sonoma | GT |
| 1994-2004 | GMC | Sonoma | SL |
| 1991-2001 | GMC | Sonoma | SLE |
| 1993-2004 | GMC | Sonoma | SLS |
| 1980 | Oldsmobile | Cutlass | Base |
| 1980-1981 | Oldsmobile | Cutlass | Brougham |
| 1980-1981 | Oldsmobile | Cutlass | LS |
| 1978-1979 | Oldsmobile | Cutlass | Vista Cruiser |
| 1979 | Oldsmobile | Cutlass | Vista Cruiser Brougham |
| 1978-1984 | Oldsmobile | Cutlass Calais | Base |
| 1983-1984 | Oldsmobile | Cutlass Calais | Hurst |
| 1982-1983,1988 | Oldsmobile | Cutlass Ciera | Base |
| 1982-1988 | Oldsmobile | Cutlass Ciera | Brougham |
| 1984-1985 | Oldsmobile | Cutlass Ciera | Cruiser LS |
| 1983,1985-1986 | Oldsmobile | Cutlass Ciera | ES |
| 1985-1987 | Oldsmobile | Cutlass Ciera | GT |
| 1985-1986 | Oldsmobile | Cutlass Ciera | Holiday |
| 1988 | Oldsmobile | Cutlass Ciera | International |
| 1982-1988 | Oldsmobile | Cutlass Ciera | LS |
| 1986-1988 | Oldsmobile | Cutlass Ciera | S |
| 1986-1988 | Oldsmobile | Cutlass Ciera | SL |
| 1980-1983 | Oldsmobile | Cutlass Cruiser | Base |
| 1980-1981 | Oldsmobile | Cutlass Cruiser | Brougham |
| 1978-1979,1985-1986 | Oldsmobile | Cutlass Salon | 442 |
| 1978-1980,1985-1987 | Oldsmobile | Cutlass Salon | Base |
| 1978-1980 | Oldsmobile | Cutlass Salon | Brougham |
| 1979 | Oldsmobile | Cutlass Salon | Hurst |
| 1987 | Oldsmobile | Cutlass Supreme | 442 |
| 1978-1988 | Oldsmobile | Cutlass Supreme | Base |
| 1978-1987 | Oldsmobile | Cutlass Supreme | Brougham |
| 1988 | Oldsmobile | Cutlass Supreme | Classic |
| 1988 | Oldsmobile | Cutlass Supreme | Classic Brougham |
| 1988 | Oldsmobile | Cutlass Supreme | Indy 500 Pace Car |
| 1988 | Oldsmobile | Cutlass Supreme | International |
| 1981,1985 | Oldsmobile | Cutlass Supreme | LS |
| 1988 | Oldsmobile | Cutlass Supreme | SL |
| 1982-1986 | Pontiac | Bonneville | Base |
| 1982-1986 | Pontiac | Bonneville | Brougham |
| 1984-1986 | Pontiac | Bonneville | LE |
| 1978-1987 | Pontiac | Grand Prix | Base |
| 1981-1987 | Pontiac | Grand Prix | Brougham |
| 1984-1987 | Pontiac | Grand Prix | LE |
| 1978-1983 | Pontiac | Grand Prix | LJ |
| 1978-1980 | Pontiac | Grand Prix | SJ |
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.