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Rough CountryPart 6551 · UPC 00843030111991

1.5-Inch Lift Blocks & U-Bolts for 2011–2019 Silverado 2500 HD

$99.95MAP price
In stock — 107 available
Shipping weight: 12 lb.
  • Fits 2011–2019 Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD, 4WD and RWD
  • 1.5-inch blocks in fiberglass-reinforced nylon, 3 inches wide, single 5/8-inch pin
  • Tapered to reduce driveshaft angle; powder coated black
  • Square U-bolts: 5/8-inch thread, 3-inch inside width, 12-inch inside length
  • Install time listed at 2-3 hours; shipping weight 12.0 lb

The Trail Fortress check

Will it fit your truck?

✓ Fits

2011–2019 GMC Sierra 2500 HD · 4WD/RWD
BaseDenaliSLESLTWT
2011–2019 Chevrolet Silverado 2500 HD · 4WD/RWD
High CountryLTLTZWT

About this part

1.5-Inch Lift Blocks & U-Bolts, fitment-checked

Rough Country 6551 adds 1.5 inches at the rear of 2011–2019 Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD trucks, 4WD or RWD. The blocks are fiberglass-reinforced nylon, 3 inches wide, tapered to reduce driveshaft angle, and built around a single 5/8-inch pin. Square U-bolts measure 3 inches inside width by 12 inches inside length on a 5/8-inch thread.

A 1.5-inch block and U-bolt kit for 2011–2019 Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD trucks in 4WD and RWD, covering WT, LT, LTZ, SLE, SLT, Denali, and High Country. The blocks are molded from fiberglass-reinforced nylon, 3 inches wide, tapered so driveshaft angle stays in check, and located by a single 5/8-inch pin. The square U-bolts run a 5/8-inch thread with 3 inches of inside width and 12 inches of inside length, e-coated black. Rough Country lists 2-3 hours for the install. Shipping weight: 12.0 lb.

Specifications

Specs

BrandRough Country
Part number6551
UPC / GTIN00843030111991
Lift height1.5 in
Shipping weight12 lb
Country of originUS
CategoryBumpers & Armor › Body Armor

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Manufacturer-listed exclusions shown. We publish what a part does not fit — before you buy, not after the return.
Sourced from the application data. Fitment on this page comes from the manufacturer’s application catalog, not a copied listing.
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