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Find the Block and U-Bolt Kits For Your Truck

Displaying 24 out of 63 products available

1.5" Rear block & U-bolt kit

$229.99 Buy Now

1.5" rear lift for ARC suspension

2019 GMC Sierra 1500 Denali 1.5" Rear block with shock extensions

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$229.99 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 2"

Fits 2011-2020 Silverado/Sierra 2500-3500 2WD/4x4 w/ 3" Wide Leaf Springs. Features larger than stock Super Heavy Duty 3/4" diameter U-Bolts. For vehicles with top mounted overload springs.

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$199.90 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 1.5"

Fits 2011-2020 Silverado/Sierra 2500-3500 2WD/4x4 w/ 3" Wide Leaf Springs. Features larger than stock Super Heavy Duty 3/4" diameter U-Bolts. For vehicles with top mounted overload springs.

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$189.90 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 2" - Diesel w/ Dual Center Bolts & 9/16 Dia x 4-1/16 Width U-Bolts

Fits 2003-2013 Ram 2500 4x4 Diesel Engine w/ Dual Center Bolts and 9/16 diameter x 4-1/16 Width U-Bolts

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$179.99 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 1"

Fits 2011-2020 Silverado/Sierra 3500 2WD/4x4 w/ 3" Wide Leaf Springs. Features 3/4" diameter larger than stock Super Heavy Duty U bolts. For vehicles with top-mounted overload springs.

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$179.90 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 2.0"

Fits 2011-2020 Silverado/Sierra 2500-3500 2WD/4x4 w/ 3" Wide Leaf Springs. Feature 3/4" diameter larger than stock Super Heavy Duty U bolts.

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$179.90 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 1.5" - Diesel w/ Dual Center Bolts & 9/16 Dia x 4-1/16 Width U-Bolts

Fits 2003-2013 Ram 2500 4x4 Diesel Engine w/ Dual Center Bolts and 9/16 diameter x 4-1/16 Width U-Bolts

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$169.99 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 1.5"

Fits 2011-2020 Silverado/Sierra 2500-3500 2WD/4x4 w/ 3" Wide Leaf Springs. Feature 3/4" diameter larger than stock Super Heavy Duty U bolts.

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$169.90 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 2" - Diesel w/ Dual Center Bolts, 9/16 diameter x 4-1/8 width U-Bolts, and equipped with top mount overload springs

Fits 2003-2013 Ram 3500 4x4 Diesel Engine w/ Dual Center Bolts, 9/16 diameter x 4-1/8 width U-Bolts, and equipped with top mount overload springs

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$159.95 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 2" - Gas Engine w/ Dual Center Bolts, 9/16" diameter x 4-1/16 width U-Bolts, and equipped with top mount overload springs

Fits 2003-2013 Ram 3500 Gas Engine w/ Dual Center Bolts, 9/16" diameter x 4-1/16 width U-Bolts, and equipped with top mount overload springs

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$159.95 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 1"

Fits 2011-2020 Silverado/Sierra 2500-3500 2WD/4x4 w/ 3" Wide Leaf Springs. 12" long and 3/4" diameter larger than stock Super Heavy Duty U bolts.

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$159.90 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 1" - Diesel w/ Dual Center Bolts, 9/16" diameter x 4-1/8" width U-Bolts, and equipped with top mount overload springs

Fits 2003-2013 Ram 3500 4x4 Diesel Engine w/ Dual Center Bolts, 9/16" diameter x 4-1/8" width U-Bolts, and equipped with top mount overload springs

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$149.95 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 1" - Gas w/ Dual Center Bolts and 9/16" diameter x 4-1/16" width U-Bolts, and top mount overload springs

Fits 2003-2013 Ram 3500 4x4 Gas Engine w/ Dual Center Bolts and 9/16" diameter x 4-1/16" width U-Bolts, and equipped with top mount overload springs

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$149.95 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 1.5" - Diesel w/ Dual Center Bolts, 9/16" diameter x 4-1/8" Width U-Bolts with top mount overload springs

Fits 2003-2013 Ram 3500 4x4 Diesel Engine w/ Dual Center Bolts and 9/16" diameter x 4-1/8" Width U-Bolts, equipped with top mount overload springs

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$149.95 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 1.5" - Gas w/ Dual Center Bolts, 9/16" diameter x 4-1/16" width U-Bolts, and top mount overload springs

Fits - 2003-2013 Ram 4x4 3500 Gas w/ Dual Center Bolts, 9/16" diameter x 4-1/16" width U-Bolts, and equipped with top mount overload springs

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$149.95 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 1.5" - Diesel w/ Dual Center Bolts and 4-1/8" width U-Bolts

Fits 2003-2013 Ram 4x4 3500 Diesel Engine w/ Dual Center Bolts and 4-1/8" width U-Bolts

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$149.90 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 2" - Diesel w/ Dual Center Bolts and 4-1/8" width U-Bolts

Fits 2003-2013 Ram 3500 4x4 Diesel Engine w/ Dual Center Bolts and 4-1/8" width U-Bolts

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$149.90 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 2" - Gas w/ Dual Center Bolts & 9/16 Dia x 4-1/16 Width U-Bolts

Fits 2003-2013 Ram 3500 4x4 Gas Engine w/ Dual Center Bolts & 9/16 Dia x 4-1/16 Width U-Bolts

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$149.90 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 2" - Gas w/ Dual Center Bolts & 9/16 dia. x 3-1/2 Width U-Bolts

Fits 2003-2013 Ram 2500 4x4 Gas Engine w/ Dual Center Bolts and 9/16 diameter x 3-1/2 Width U-Bolts

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$149.90 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 2.0"

Fits 2015-2018 GMC Sierra Denali 1500 Magnetic Ride 4x4/ 2wd 6-Bolt Wheel with 9/16 diameter U-Bolts

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$149.90 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 1.0" Magnetic Ride

Fits 2015-2018 GMC Sierra Denali 1500 Magnetic Ride 4x4/ 2wd 6-Bolt Wheel with 9/16 diameter U-Bolts

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$139.90 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 1.5"

Fits 1988-2000 Silverado/Sierra K2500/K3500 4x4 "Old Body" Style including K2500 Suburban with 5/8 Dia. U-Bolts

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$139.90 Buy Now

Heavy Duty Rear Block and U-Bolt Kit 1.5" - Gas w/ Dual Center Bolts & 9/16 dia x 3-1/2 Width U-Bolts

Fits 2003-2013 Ram 2500 4x4 Gas Engine w/ Dual Center Bolts and 9/16 diameter x 3-1/2 Width U-Bolts

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$139.90 Buy Now

SuspensionMaxx Block and U-Bolt Kits Are Designed Specifically For Your Truck

SuspensionMAXX Heavy Duty Block and U-Bolt Rear Leaf Spring Leveling Kits are available in a variety of lift heights that enable you to dial in just the right amount of rear lift for your needs. These leaf spring spacers are ideal for increasing ground clearance or fitting larger wheels and tires. Blocks and U-Bolts are also used to level trucks and SUV’s that carry heavy loads. SuspensionMAXX Heavy Duty Block and U-Bolt Kits are made with quality alloy metals for high strength and long life – they won’t crack or compress.

Suspension lift kits provide all hardware needed and are quickly installed using job specific tools. Installation involves no major alterations to the vehicle and the truck or SUV can easily be put back to stock specifications – great for leased vehicles. SuspensionMAXX offers a combination of the most vehicle applications and the largest number of height options per vehicle. Available for Dodge, Ford, GM, and Toyota trucks and SUV’s. Made in America and covered under the MAXX Warranty.

SuspensionMAXX Heavy Duty Block and U-Bolt Rear Leaf Spring Leveling Kits are the perfect solution for lifting or leveling the rear of trucks or SUV’s carrying heavy loads including campers. Such loads can cause rear suspension to compress and sag – thereby reducing rear ride height. Our Block and U-Bolt Kits simply fit between rear leaf springs and axle to compensate for suspension compression and restore rear ride height.

SuspensionMAXX specializes in providing many incremental lift height options. So you can obtain just the right size blocks you need to match the rear ride height to that of the front while carrying a load. Kits are also available for trucks equipped with top mounted overload springs, also called helper springs.

SuspensionMAXX Heavy Duty Block and U-Bolt Rear Leaf Spring Leveling Kits utilize premium quality high strength components including CNC drilled and located solid steel blocks, heavy-duty Grade 8 U-Bolts, tall nuts and extra thick washers. Installation can be done in about 1.5 hours.

 

 

Block and U-bolt Kits FAQ

No, this is not necessary on blocks less than 3” in height.  No change in pinion angle is required for 1-2.5” of lift.

Suspension MAXX block and U-bolt kits use high-quality blocks from SOLID STEEL, unlike the cheaply made hollow cast import lift blocks. Each of our blocks is precision cut and CNC machined.  We also use All- American made steel U-bolts, Tall Nuts, and Heavy Duty washers.

Factory shocks have 8-12” of shock travel and can work well with 1” and 1.5” of lift on most trucks.  2” of lift is the maximum height of lift we recommend; it depends on the application as some vehicles like F150 trucks have extremely long shocks from the factory.  Shock extensions or longer shocks will be needed for sharp drop-offs, like speed bumps, for example.