UMI’s bolt-in frame notch kit improves axle clearance on lowered trucks. The 6415 is essential when lowering more than 6″. It features strong 3/16″ laser cut steel construction, quality hardware and poly bumpstops. Although notching of the factory frame is required, the UMI design does not require any cutting of your valuable bed reinforcement rails. UMI’s exclusive inner support plate doubles as an easy-to-use template. Gloss black powder coat protects your investment.
This Part Fits:
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1978-1980 | Chevrolet | C10 | Big Ten |
| 1975-1981 | Chevrolet | C10 | Cheyenne |
| 1981-1986 | Chevrolet | C10 | Custom |
| 1975-1980 | Chevrolet | C10 | Custom Deluxe |
| 1981 | Chevrolet | C10 | Deluxe |
| 1975-1986 | Chevrolet | C10 | Scottsdale |
| 1975-1986 | Chevrolet | C10 | Silverado |
| 1973-1974 | Chevrolet | C10 Pickup | Base |
| 1973-1974 | Chevrolet | C10 Suburban | Base |
| 1981-1986 | Chevrolet | C10 Suburban | Custom |
| 1975-1980 | Chevrolet | C10 Suburban | Custom Deluxe |
| 1981 | Chevrolet | C10 Suburban | Deluxe |
| 1975-1980,1982,1984-1986 | Chevrolet | C10 Suburban | Scottsdale |
| 1975-1980,1982-1986 | Chevrolet | C10 Suburban | Silverado |
| 1987 | Chevrolet | R10 | Custom Deluxe |
| 1987 | Chevrolet | R10 | Scottsdale |
| 1987 | Chevrolet | R10 | Silverado |
| 1975-1978 | GMC | C15 | Base |
| 1977-1978 | GMC | C15 | Heavy Half |
| 1975-1978 | GMC | C15 | High Sierra |
| 1977 | GMC | C15 | Indy Hauler |
| 1975-1978 | GMC | C15 | Sierra Classic |
| 1975-1978 | GMC | C15 | Sierra Grande |
| 1978 | GMC | C15 | Street Coupe |
| 1975-1978 | GMC | C15 Suburban | Base |
| 1975-1978 | GMC | C15 Suburban | High Sierra |
| 1975-1978 | GMC | C15 Suburban | Sierra Classic |
| 1975-1978 | GMC | C15 Suburban | Sierra Grande |
| 1973-1974 | GMC | C15/C1500 Pickup | Base |
| 1973 | GMC | C15/C1500 Suburban | Base |
| 1979-1986 | GMC | C1500 | Base |
| 1979-1980 | GMC | C1500 | Heavy Half |
| 1979-1986 | GMC | C1500 | High Sierra |
| 1979-1986 | GMC | C1500 | Sierra Classic |
| 1979-1982 | GMC | C1500 | Sierra Grande |
| 1979-1982 | GMC | C1500 | Street Coupe |
| 1987 | GMC | R1500 | Base |
| 1987 | GMC | R1500 | High Sierra |
| 1987 | GMC | R1500 | Sierra Classic |