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-esi6503501
- 1975-chevrolet-c10-custom-deluxe-esi6702290
- 1975-chevrolet-c10-scottsdale-esi8540768
- 1975-chevrolet-c10-silverado-esi3036780
- 1976-chevrolet-c10-cheyenne-esi9494580
- 1976-chevrolet-c10-custom-deluxe-esi3755012
- 1976-chevrolet-c10-scottsdale-esi6976746
- 1976-chevrolet-c10-silverado-esi2016872
- 1977-chevrolet-c10-cheyenne-esi8688235
- 1977-chevrolet-c10-custom-deluxe-esi1197592
- 1977-chevrolet-c10-scottsdale-esi9575207
- 1977-chevrolet-c10-silverado-esi4587369
- 1978-chevrolet-c10-big-ten-esi7388207
- 1978-chevrolet-c10-cheyenne-esi5006445
- 1978-chevrolet-c10-custom-deluxe-esi7270512
- 1978-chevrolet-c10-scottsdale-esi6903476
- 1978-chevrolet-c10-silverado-esi8298233
- 1979-chevrolet-c10-big-ten-esi7781344
- 1979-chevrolet-c10-cheyenne-esi3924360
- 1979-chevrolet-c10-custom-deluxe-esi8418035
- 1979-chevrolet-c10-scottsdale-esi9717968
- 1979-chevrolet-c10-silverado-esi6432424
- 1979-gmc-c1500-base-esi4312923
- 1979-gmc-c1500-heavy-half-esi1684611
- 1979-gmc-c1500-high-sierra-esi3442382
- 1979-gmc-c1500-sierra-classic-esi5998653
- 1979-gmc-c1500-sierra-grande-esi9822362
- 1979-gmc-c1500-street-coupe-esi4611173
- 1980-chevrolet-c10-big-ten-esi3054028
- 1980-chevrolet-c10-cheyenne-esi7597182
- 1980-chevrolet-c10-custom-deluxe-esi5464958
- 1980-chevrolet-c10-scottsdale-esi6835292
- 1980-chevrolet-c10-silverado-esi7556451
- 1980-gmc-c1500-base-esi5427591
- 1980-gmc-c1500-heavy-half-esi1189441
- 1980-gmc-c1500-high-sierra-esi3843504
- 1980-gmc-c1500-sierra-classic-esi6571593
- 1980-gmc-c1500-sierra-grande-esi1859962
- 1980-gmc-c1500-street-coupe-esi1389740
- 1981-chevrolet-c10-cheyenne-esi3467691
- 1981-chevrolet-c10-custom-esi7049168
- 1981-chevrolet-c10-deluxe-esi3748809
- 1981-chevrolet-c10-scottsdale-esi5178354
- 1981-gmc-c1500-base-esi7784156
- 1981-gmc-c1500-high-sierra-esi8212851
- 1981-gmc-c1500-sierra-classic-esi1834739
- 1981-gmc-c1500-sierra-grande-esi3940630
- 1981-gmc-c1500-street-coupe-esi2424070
- 1982-chevrolet-c10-custom-esi4644657
- 1982-chevrolet-c10-scottsdale-esi4899488
- 1982-chevrolet-c10-silverado-esi1755766
- 1982-gmc-c1500-base-esi3513363
- 1982-gmc-c1500-high-sierra-esi9398161
- 1982-gmc-c1500-sierra-classic-esi2281165
- 1982-gmc-c1500-sierra-grande-esi5118766
- 1982-gmc-c1500-street-coupe-esi7700682
- 1983-chevrolet-c10-custom-esi5929782
- 1983-chevrolet-c10-scottsdale-esi6180765
- 1983-chevrolet-c10-silverado-esi2760011
- 1983-gmc-c1500-base-esi4717871
- 1983-gmc-c1500-high-sierra-esi5238201
- 1983-gmc-c1500-sierra-classic-esi9406003
- 1984-chevrolet-c10-custom-esi4770532
- 1984-chevrolet-c10-scottsdale-esi3251217
- 1984-chevrolet-c10-silverado-esi8548240
- 1984-gmc-c1500-base-esi6322620
- 1984-gmc-c1500-high-sierra-esi7022266
- 1984-gmc-c1500-sierra-classic-esi8940529
- 1985-chevrolet-c10-custom-esi4376536
- 1985-chevrolet-c10-scottsdale-esi7629468
- 1985-chevrolet-c10-silverado-esi2126096
- 1985-gmc-c1500-base-esi4612966
- 1985-gmc-c1500-high-sierra-esi1835172
- 1985-gmc-c1500-sierra-classic-esi1187711
- 1986-chevrolet-c10-custom-esi7918372
- 1986-chevrolet-c10-scottsdale-esi4151609
- 1986-chevrolet-c10-silverado-esi6510302
- 1986-gmc-c1500-base-esi8399508
- 1986-gmc-c1500-high-sierra-esi5288044
- 1986-gmc-c1500-sierra-classic-esi7332071
- 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:Y
- SpecialOrder:Y