Tuff Country 73-87 Chevy Truck 3/4 Ton 4wd (Lifted w/5.5in Blocks) Rear Axle U-Bolts

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SKU: TUF17758
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Tuff Country u bolts are designed specifically for vehicles with ...Read More

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Sale price$48.99 Regular price$61.60
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit
Tuff Country u bolts are designed specifically for vehicles with suspension lift kits. These zinc plated; corrosion resistant kits include 4 ubolts along with nuts and washers.
Installation Instructions


This Part Fits:

Year Make Model Submodel
1975-1978 GMC C25 Base
1975-1978 GMC C25 High Sierra
1975-1978 GMC C25 Sierra Classic
1975-1978 GMC C25 Sierra Grande
1973-1974 GMC C25/C2500 Pickup Base
1979-1986 GMC C2500 Base
1979-1986 GMC C2500 High Sierra
1988-1991 GMC C2500 Sierra
1979-1986 GMC C2500 Sierra Classic
1979-1982 GMC C2500 Sierra Grande
1988-1991 GMC C2500 Sierra SLE
1988-1991 GMC C2500 Sierra SLX
1975-1978 GMC K25 Base
1975-1978 GMC K25 High Sierra
1975-1978 GMC K25 Sierra Classic
1975-1978 GMC K25 Sierra Grande
1973-1974 GMC K25/K2500 Pickup Base
1979-1986 GMC K2500 Base
1979-1986 GMC K2500 High Sierra
1988-1991 GMC K2500 Sierra
1979-1986 GMC K2500 Sierra Classic
1979-1982 GMC K2500 Sierra Grande
1988-1991 GMC K2500 Sierra SLE
1988-1991 GMC K2500 Sierra SLX
1987-1989 GMC R2500 Base
1987-1989 GMC R2500 High Sierra
1987-1989 GMC R2500 Sierra Classic
1987 GMC V2500 Base
1987 GMC V2500 High Sierra
1987 GMC V2500 Sierra Classic

Product Details

Product Description
Part Numbers
Sizing & Fit
Tuff Country u bolts are designed specifically for vehicles with suspension lift kits. These zinc plated; corrosion resistant kits include 4 ubolts along with nuts and washers.
Installation Instructions


This Part Fits:

Year Make Model Submodel
1975-1978 GMC C25 Base
1975-1978 GMC C25 High Sierra
1975-1978 GMC C25 Sierra Classic
1975-1978 GMC C25 Sierra Grande
1973-1974 GMC C25/C2500 Pickup Base
1979-1986 GMC C2500 Base
1979-1986 GMC C2500 High Sierra
1988-1991 GMC C2500 Sierra
1979-1986 GMC C2500 Sierra Classic
1979-1982 GMC C2500 Sierra Grande
1988-1991 GMC C2500 Sierra SLE
1988-1991 GMC C2500 Sierra SLX
1975-1978 GMC K25 Base
1975-1978 GMC K25 High Sierra
1975-1978 GMC K25 Sierra Classic
1975-1978 GMC K25 Sierra Grande
1973-1974 GMC K25/K2500 Pickup Base
1979-1986 GMC K2500 Base
1979-1986 GMC K2500 High Sierra
1988-1991 GMC K2500 Sierra
1979-1986 GMC K2500 Sierra Classic
1979-1982 GMC K2500 Sierra Grande
1988-1991 GMC K2500 Sierra SLE
1988-1991 GMC K2500 Sierra SLX
1987-1989 GMC R2500 Base
1987-1989 GMC R2500 High Sierra
1987-1989 GMC R2500 Sierra Classic
1987 GMC V2500 Base
1987 GMC V2500 High Sierra
1987 GMC V2500 Sierra Classic

Product Details

Product Description
Tuff Country u bolts are designed specifically for vehicles with suspension lift kits. These zinc plated; corrosion resistant kits include 4 ubolts along with nuts and washers.
Installation Instructions


This Part Fits:

Year Make Model Submodel
1975-1978 GMC C25 Base
1975-1978 GMC C25 High Sierra
1975-1978 GMC C25 Sierra Classic
1975-1978 GMC C25 Sierra Grande
1973-1974 GMC C25/C2500 Pickup Base
1979-1986 GMC C2500 Base
1979-1986 GMC C2500 High Sierra
1988-1991 GMC C2500 Sierra
1979-1986 GMC C2500 Sierra Classic
1979-1982 GMC C2500 Sierra Grande
1988-1991 GMC C2500 Sierra SLE
1988-1991 GMC C2500 Sierra SLX
1975-1978 GMC K25 Base
1975-1978 GMC K25 High Sierra
1975-1978 GMC K25 Sierra Classic
1975-1978 GMC K25 Sierra Grande
1973-1974 GMC K25/K2500 Pickup Base
1979-1986 GMC K2500 Base
1979-1986 GMC K2500 High Sierra
1988-1991 GMC K2500 Sierra
1979-1986 GMC K2500 Sierra Classic
1979-1982 GMC K2500 Sierra Grande
1988-1991 GMC K2500 Sierra SLE
1988-1991 GMC K2500 Sierra SLX
1987-1989 GMC R2500 Base
1987-1989 GMC R2500 High Sierra
1987-1989 GMC R2500 Sierra Classic
1987 GMC V2500 Base
1987 GMC V2500 High Sierra
1987 GMC V2500 Sierra Classic

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