UMI’s 6400-1 lowering kit drops your squarebody an eye catching 4.5″/6″ and throws in some great handling to finish it off. This kit includes satin black powder coated 2.5″ drop spindles, UMI 2″ lowering springs, Bilstein shocks and a UMI rear flip kit.
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 |
| 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 |
| 1973-1974 | GMC | C15/C1500 Pickup | 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 |
- 1975-chevrolet-c10-cheyenne-esi2916252
- 1975-chevrolet-c10-custom-deluxe-esi6368633
- 1975-chevrolet-c10-scottsdale-esi6716905
- 1976-chevrolet-c10-cheyenne-esi8109110
- 1976-chevrolet-c10-custom-deluxe-esi9455585
- 1976-chevrolet-c10-scottsdale-esi8649626
- 1977-chevrolet-c10-cheyenne-esi2536311
- 1977-chevrolet-c10-custom-deluxe-esi6560814
- 1977-chevrolet-c10-scottsdale-esi3367365
- 1978-chevrolet-c10-big-ten-esi1483775
- 1978-chevrolet-c10-cheyenne-esi6520872
- 1978-chevrolet-c10-custom-deluxe-esi4838422
- 1978-chevrolet-c10-scottsdale-esi7329499
- 1978-chevrolet-c10-silverado-esi4868615
- 1979-chevrolet-c10-big-ten-esi2812602
- 1979-chevrolet-c10-cheyenne-esi1302020
- 1979-chevrolet-c10-custom-deluxe-esi1169311
- 1979-chevrolet-c10-scottsdale-esi3064141
- 1979-chevrolet-c10-silverado-esi9974476
- 1979-gmc-c1500-base-esi8692762
- 1979-gmc-c1500-heavy-half-esi8821776
- 1979-gmc-c1500-high-sierra-esi1256874
- 1979-gmc-c1500-sierra-classic-esi9411137
- 1979-gmc-c1500-sierra-grande-esi2418282
- 1979-gmc-c1500-street-coupe-esi4117676
- 1980-chevrolet-c10-big-ten-esi6075100
- 1980-chevrolet-c10-cheyenne-esi1368008
- 1980-chevrolet-c10-custom-deluxe-esi4649605
- 1980-chevrolet-c10-silverado-esi9537492
- 1980-gmc-c1500-base-esi5492052
- 1980-gmc-c1500-heavy-half-esi3903940
- 1980-gmc-c1500-high-sierra-esi2213586
- 1980-gmc-c1500-sierra-classic-esi4805666
- 1980-gmc-c1500-sierra-grande-esi1521223
- 1980-gmc-c1500-street-coupe-esi7233929
- 1981-chevrolet-c10-cheyenne-esi3633048
- 1981-chevrolet-c10-custom-esi2034240
- 1981-chevrolet-c10-deluxe-esi3173159
- 1981-chevrolet-c10-scottsdale-esi3538109
- 1981-gmc-c1500-base-esi8008674
- 1981-gmc-c1500-high-sierra-esi7151060
- 1981-gmc-c1500-sierra-classic-esi9981360
- 1981-gmc-c1500-sierra-grande-esi1015678
- 1981-gmc-c1500-street-coupe-esi5696252
- 1982-chevrolet-c10-custom-esi6845286
- 1982-chevrolet-c10-scottsdale-esi1947234
- 1982-chevrolet-c10-silverado-esi5204941
- 1982-gmc-c1500-base-esi5655212
- 1982-gmc-c1500-high-sierra-esi4051350
- 1982-gmc-c1500-sierra-classic-esi9261793
- 1982-gmc-c1500-sierra-grande-esi8817627
- 1982-gmc-c1500-street-coupe-esi2356744
- 1983-chevrolet-c10-custom-esi6152068
- 1983-chevrolet-c10-scottsdale-esi7131595
- 1983-chevrolet-c10-silverado-esi7071119
- 1983-gmc-c1500-base-esi5014147
- 1983-gmc-c1500-high-sierra-esi2605369
- 1983-gmc-c1500-sierra-classic-esi7569324
- 1984-chevrolet-c10-custom-esi8714850
- 1984-chevrolet-c10-scottsdale-esi9355055
- 1984-chevrolet-c10-silverado-esi9184373
- 1984-gmc-c1500-base-esi8310696
- 1984-gmc-c1500-high-sierra-esi5424952
- 1984-gmc-c1500-sierra-classic-esi9606609
- 1985-chevrolet-c10-custom-esi3429989
- 1985-chevrolet-c10-scottsdale-esi9399307
- 1985-gmc-c1500-base-esi2267537
- 1985-gmc-c1500-high-sierra-esi8112466
- 1985-gmc-c1500-sierra-classic-esi1984489
- 1986-chevrolet-c10-custom-esi6458665
- 1986-chevrolet-c10-scottsdale-esi5575828
- 1986-gmc-c1500-base-esi2965891
- 1986-gmc-c1500-high-sierra-esi5796976
- 1986-gmc-c1500-sierra-classic-esi6075845
- ClearanceItem:N
- Drivetrain>Spindles
- EPA:N/A
- fits_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
- fits_1978`GMC`C15`Street Coupe~1973-1974`GMC`C15/C1500 Pickup`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
- fits_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
- fits_1987`GMC`R1500`Base~1987`GMC`R1500`High Sierra~1987`GMC`R1500`Sierra Classic
- LTL:N
- MPN:6400-1
- Non-CARB:N
- Prop65:N
- SpecialOrder:Y