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Skyjacker BUK4589

Rear Block & U-Bolt Kit 1973-87 Truck 1/2 & 3/4-Ton, 6-Lug

Skyjacker BUK4589

825-BUK4589

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Skyjacker BUK4589 Rear Block & U-Bolt Kit 1973-87 Truck 1/2 & 3/4-Ton, 6-Lug $126.01
Rear Block & U-Bolt Kit
  • 1973-87 Truck 1/2 & 3/4-Ton, 6-Lug
  • 1973-91 Blazer/Jimmy/Tahoe/Yukon
  • 1973-91 Suburban 1/2 & 3/4-Ton, 6-Lug
  • 4WD
  • 4.5'' Rear Lift

  • Specifications:

    Lift/Drop Height (in.)
    4.5
    Manufacturer's Part Number:
    BUK4589

    Perfect Way to Lift Your Ride to Clear Larger Rear Tires

    Skyjacker utilizes blocks and U-bolts in its kits to provide rear lift. Available in 1.25", 2", 3.5", 4.5", and 5", Skyjacker ductile iron blocks with fixed center pins are tapered to correct pinion angle and prevent driveline vibrations. E-coated U-bolts are corrosion-resistant and offered in various shapes/sizes (e.g. square, round, semi-round) and lengths from 1.75" to 19".

    Does Skyjacker BUK4589 fit your vehicle?

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    • SubModel: CUSTOM

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    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1981 CHEVROLET K20 PICKUP

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    • SubModel: DELUXE

    1976 GMC K15 SUBURBAN

    • EngineType: ALL
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    1975 CHEVROLET K5 BLAZER

    • EngineType: ALL
    • SubModel: CHEYENNE

    1980 CHEVROLET K20 PICKUP

    • Liter: 6.6
    • Aspiration: N
    • SubModel: CUSTOM DELUXE
    • Engine Vin: X
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

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    • EngineType: ALL
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    1976 CHEVROLET K10 SUBURBAN

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    • EngineType: ALL
    • SubModel: ALL

    1990 CHEVROLET BLAZER

    • EngineType: ALL
    • SubModel: ALL

    1979 CHEVROLET K10 PICKUP

    • EngineType: ALL
    • SubModel: SCOTTSDALE

    1985 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: CUSTOM

    1976 GMC K15 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973 GMC K15/K1500 SUBURBAN

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1976 GMC K1500 PICKUP

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1986 CHEVROLET BLAZER K5

    • EngineType: ALL
    • SubModel: ALL

    1983-1984 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1980 CHEVROLET K20 PICKUP

    • Liter: 6.6
    • Aspiration: N
    • SubModel: CHEYENNE
    • Engine Vin: X
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1980 CHEVROLET K20 PICKUP

    • Liter: 7.4
    • Aspiration: N
    • SubModel: CUSTOM DELUXE
    • Engine Vin: S
    • CUI: 454
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    • EngineType: ALL
    • SubModel: CUSTOM

    1980 CHEVROLET K10 PICKUP

    • Liter: 6.6
    • Aspiration: N
    • SubModel: SCOTTSDALE
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    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1976 GMC K15 SUBURBAN

    • EngineType: ALL
    • SubModel: SIERRA CLASSIC

    1980 CHEVROLET K20 PICKUP

    • Liter: 7.4
    • Aspiration: N
    • SubModel: SCOTTSDALE
    • Engine Vin: S
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

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    • EngineType: ALL
    • SubModel: HIGH SIERRA

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    • Liter: 4.1
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    • EngineType: L6 ( 4.1 L / 250 )

    1982 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: SCOTTSDALE

    1973-1974 CHEVROLET K10 PICKUP

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    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

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    • EngineType: ALL
    • SubModel: CUSTOM DELUXE

    1980 CHEVROLET K20 PICKUP

    • Liter: 4.8
    • SubModel: SCOTTSDALE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1979 CHEVROLET K20 PICKUP

    • EngineType: ALL
    • SubModel: SCOTTSDALE

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    • SubModel: ALL

    1980 CHEVROLET K20 PICKUP

    • Liter: 6.6
    • Aspiration: N
    • SubModel: SILVERADO
    • Engine Vin: X
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1980 CHEVROLET K10 PICKUP

    • Liter: 7.4
    • Aspiration: N
    • SubModel: CHEYENNE
    • Engine Vin: S
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1977-1978 GMC K15 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1980 CHEVROLET K10 PICKUP

    • Liter: 4.8
    • SubModel: SCOTTSDALE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1980 CHEVROLET K10 PICKUP

    • CC: 4097
    • Liter: 4.1
    • SubModel: SILVERADO
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

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    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1977-1978 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1976 GMC K1500 PICKUP

    • Liter: 4.1
    • SubModel: BASE
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    • EngineType: L6 ( 4.1 L / 250 )

    1981-1982 CHEVROLET K20 PICKUP

    • EngineType: ALL
    • SubModel: SILVERADO

    1973 CHEVROLET BLAZER

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 CHEVROLET K10 PICKUP

    • Liter: 5.7
    • SubModel: CHEYENNE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 CHEVROLET K20 PICKUP

    • Liter: 5.7
    • SubModel: SCOTTSDALE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 CHEVROLET K20 PICKUP

    • Liter: 6.6
    • Aspiration: N
    • SubModel: SCOTTSDALE
    • Engine Vin: X
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1974 CHEVROLET K10 PICKUP

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 CHEVROLET K10 PICKUP

    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1976 GMC K1500 PICKUP

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973 CHEVROLET BLAZER

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1980 CHEVROLET K10 PICKUP

    • CC: 4097
    • Liter: 4.1
    • SubModel: CUSTOM DELUXE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

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    • Liter: 7.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: Z
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

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    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

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    • EngineType: ALL
    • SubModel: CUSTOM DELUXE

    1980 CHEVROLET K10 PICKUP

    • Liter: 6.6
    • Aspiration: N
    • SubModel: SILVERADO
    • Engine Vin: X
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1985 CHEVROLET K20 PICKUP

    • EngineType: ALL
    • SubModel: SILVERADO

    1981-1982 CHEVROLET K10 PICKUP

    • EngineType: ALL
    • SubModel: SCOTTSDALE

    1976 GMC K15 SUBURBAN

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1980 CHEVROLET K20 PICKUP

    • Liter: 4.8
    • SubModel: SILVERADO
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1980 CHEVROLET K20 PICKUP

    • CC: 4097
    • Liter: 4.1
    • SubModel: CUSTOM DELUXE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1976 GMC K1500 PICKUP

    • EngineType: ALL
    • SubModel: SIERRA GRANDE

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    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

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    • EngineType: ALL
    • SubModel: SIERRA GRANDE

    1980 CHEVROLET K20 PICKUP

    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1974 CHEVROLET K10 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981 CHEVROLET K10 PICKUP

    • EngineType: ALL
    • SubModel: DELUXE

    1985 CHEVROLET K10 PICKUP

    • EngineType: ALL
    • SubModel: SILVERADO

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    • EngineType: ALL
    • SubModel: SILVERADO

    1980 CHEVROLET K20 PICKUP

    • Liter: 7.4
    • Aspiration: N
    • SubModel: CHEYENNE
    • Engine Vin: S
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1985 CHEVROLET K20 PICKUP

    • EngineType: ALL
    • SubModel: SCOTTSDALE

    1981 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: DELUXE

    1980 CHEVROLET K20 PICKUP

    • Liter: 5.0
    • SubModel: CUSTOM DELUXE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1983-1984 CHEVROLET K10 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1976 GMC K15 SUBURBAN

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1976 GMC K1500 PICKUP

    • EngineType: ALL
    • SubModel: HIGH SIERRA

    1981-1982 CHEVROLET K20 PICKUP

    • EngineType: ALL
    • SubModel: SCOTTSDALE

    1980 CHEVROLET K10 PICKUP

    • CC: 4097
    • Liter: 4.1
    • SubModel: CHEYENNE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1980 CHEVROLET K20 PICKUP

    • Liter: 4.8
    • SubModel: CHEYENNE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1975 GMC K15 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1985 CHEVROLET K10 PICKUP

    • EngineType: ALL
    • SubModel: SCOTTSDALE

    1974-1978 CHEVROLET K20 PICKUP

    • EngineType: ALL
    • SubModel: ALL

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    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 CHEVROLET K20 PICKUP

    • Liter: 4.8
    • SubModel: CUSTOM DELUXE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1981 CHEVROLET K10 PICKUP

    • EngineType: ALL
    • SubModel: CHEYENNE

    1979 CHEVROLET K20 PICKUP

    • EngineType: ALL
    • SubModel: CHEYENNE

    1974 CHEVROLET BLAZER

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1982 CHEVROLET K20 PICKUP

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

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    • EngineType: ALL
    • SubModel: ALL

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    • EngineType: ALL
    • SubModel: ALL

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    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973 GMC K25/K2500 PICKUP

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1982 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: SILVERADO

    1973 CHEVROLET K10 SUBURBAN

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

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    • EngineType: ALL
    • SubModel: ALL

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    • EngineType: ALL
    • SubModel: ALL

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    • EngineType: ALL
    • SubModel: ALL

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    • EngineType: ALL
    • SubModel: ALL

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    • EngineType: ALL
    • SubModel: DELUXE

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    • CC: 4097
    • Liter: 4.1
    • SubModel: SCOTTSDALE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )
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