Top 9 U bolts F350 – Automotive Replacement Axle U-Bolt Kits

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1. Readylift


ReadyLift 67-2195UB U-Bolt Kit 390 mm Ford Super Duty F250/F350 4WD 1999-2010

Readylift #ad - Includes 8 nuts. M16 round 390mm long U-Bolt Kit. Contains 4 U-bolts. Made in USA. Complete kit.
BrandReadylift #ad
ManufacturerReadyLift #ad
Height5 Inches
Length16 Inches
Weight9 Pounds
Width4 Inches
Part Number67-2195UB
WarrantyLifetime Warranty to Original Purchaser

2. RockTrix


Black, F-250 F-350, Leaf Spring Axle Extended U-Bolts Square Bend Compatible with Ford 1999-2004 F250 F350 Super Duty Excursion 4WD 4x4-12 inch Length, 3.15 inch Width

RockTrix #ad - Please consult a professional if you need support. Specifications includes 4 square bend u-bolts, 8 nuts, 8 washers. The use of loctite is recommended to protect the threads from rust / corrosion and prevent loosening from vibrations. Zinc plating / coating prevents surface corrosion and rust.

Installation these square ubolts do not come with instructions but is completely bolt-on. Ubolt inside Width: 3. 15 inches. Verify length and width needed, 1999-2005 F-350 F350 Super Duty, as well as the bend shape. Material & manufacturing the u-bolts are made from heat treated carbon steel for optimal durability and fitment. All parts including the Nuts and Washers are hardware grade 109. Make sure nuts are tightened evenly refer to diagram for sequence and that they are torqued to correct manufacturer specifications.

Only fits four-wheel drive 4WD models. Product benefits for use with 1 to 3 inch lift blocks / plates. These extended u bolts ensure proper thread engagement when securing your lift pack and leaf springs to your vehicle. Should take 1-2 hours to install. Designed to be solid so that it does not bend or warp under stress, and as long as they are properly installed should last the lifetime of your vehicle.
BrandRockTrix #ad
ManufacturerRockTrix #ad
Height6 Inches
Length12 Inches
Weight7.26 Pounds
Width12 Inches
Part NumberUBolt-FD-F250/F350-BK

3. dynofit


2inch Raise Blocks& U-bolts Set for Leaf Cabela's/FX4/Harley-Davidson Edition/King Ranch/Lariat/Limited/Platinum/XL/XLT, dynofit 2" Rear Lift Kits for 1999-2020 F-250/F350 Super DutyHD 2WD 4WD

dynofit #ad - Notes: the ubolts may long on some modelssuch as 2012 f-250 2WD XL, so you need some trimming. Attention:not not for dually(DRW)/overload pick up. Fitment:1999+ f250 f 350 leaf spring typeStandard/Extended/Crew Cab. Specs:15. 55" length u-bolts, not not for duallyoverload truck, tapered design block to prevents vibration. Content:2 years warranty and free return if not as expected! .
Branddynofit #ad
Manufacturerfastfree #ad
Part NumberLU215102

4. American Automotive


American Automotive Round U Bolt kit for 1999+ F250 F350 Super Duty Dually 17" Extra Long OEM Material

American Automotive #ad - Benefits: american u bolts provide an even distribution of pressure to protect against premature spring failure and unwanted movement; Made of OEM factory material American u bolts maintain original vehicle handling characteristics and are guaranteed for life.

Contents: 4 certified carbon steel u-bolts with grade 8 hi-nuts, security spring washers and Installation Instructions. Fitment: 1999+ f250 f350 super duty Dually Only works on 4" wide Axles. Specifications: 17" x 4. 25"x 5/8 u bolts With 7 inch thread. Technical notes: a wheel alignment is recommended; Retighten u-bolts after the first 500 miles. Only works on Dually models/4" wide Axles.
BrandAmerican Automotive #ad
ManufacturerAmerican Automotive #ad
Part NumberUBLTR17-01-Dually

5. Pro Comp


Pro Comp 50191 Rear U-Bolt Kit Ford F250/F350 '99-'08

Pro Comp #ad - Package weight: 5. 035 kilograms. U-bolt kit; rear; incl. Package dimensions: 38. 862 h x 8. 89 l x 13. 208 w centimetres. Country of Origin : United States. Hi-nuts; extra thick Washers; w/Sterling 12 Bolt.
BrandPro Comp #ad
ManufacturerPro Comp Suspension #ad
Height4 Inches
Length16 Inches
Weight11 Pounds
Width6 Inches
Part Number50191



2000-2005 Ford Excursion 2WD 4WD, not fit a Dually/Overload Leaf Springs, KSP 2" Rear leveling Lift Block with 15.5" Black U bolts for 1999-2020 F-o-r-d F250 and F350 Super Duty 2WD 4WD

KSP PERFORMANCE #ad - About the lift height this kit will provide a 2" lift in the rear of a F-250 and a 1" lift in the rear of a F-350 Fitmentcompetible for 1999-2020 f-o-r-d f250 f350 super duty 2wd 4wd; 2000-2005 ford Excursion 2WD 4WD.

Please notes if your car has overload Leaf Springs, the U-Bolts will not longer enough. Black painted u-boltsthe leaf springs u bolts is longer than original bolts with 109 grades and M16x1. 5 thread pitch, more suitable for tuner;If they are too long, you could cut them as needed. Because the f350 is 2" taller than F250 from factory.

Warrantywe offer ”30-day refund, 24-month free replacement parts” service. The surface of lift block is coated with black powder for stronger rust resistance, more beautiful and clean ;. Cross gusset plate lockedthe cross gusset plate locked design of the rear lift block, ensuring stronger support than others. If you have any question, please feel free contact us.
ManufacturerGoldenlion #ad
Part NumberFLU 209903

7. Supreme Suspensions


ONLY for Lifted Applications, 4X Heavy-Duty Semi-Round Bend U-Bolts for 2017-2020 Ford F-250 F-350 Super Duty | 16" Long x 3.25" Wide x 5/8" Threads, Supreme Suspensions

Supreme Suspensions #ad - Electrostatic powder Coated for maximum resistance in harsh environments and extreme weather conditions. Please note that this pack of U-Bolts do NOT provide the lift but are necessary to clamp down your stock or aftermarket spring assembly. Offers maximum safety by restoring the necessary clamping force on your spring assembly.

Contents: 4x premium electrostatic powder Coated U-Bolts Semi-Round Bend, Installation Hardware, and Supreme Suspension Pro Pack. Compatible with 2017 - 2020 ford f-250 and f-350 super duty 2wd 4wd | designed to be used with lifted applications only. Please measure your vehicle's OEM U-Bolts and check the rear suspension setup before ordering. Heavy duty strength: iso 9001 certified and stamped to satisfy the highest quality control standards.

We strongly recommend you to re-tighten and torque the U-bolts if needed as a safety measure after ~500 miles. Technical notes: 16 inch long x 3. 25 inch wide x 5/8 threads. The bolts can be trimmed to fit your desired lift. Eliminates flexing of the leaf spring packs and provides more spring stiffness for your vehicle. Please note that this pack of u-bolts do not provide the lift but it is necessary to clamp down your spring assembly after installing a lift kit.
BrandSupreme Suspensions #ad
ManufacturerSupreme Suspensions #ad
Weight12 Pounds
Part NumberAZM U23(pro)

8. TSS


Extended U-bolts For 1999-2004 Ford F250 F350 4X4 Front Axle 4pcs by TSS

TSS #ad - Gas / diesel, v8 / V10 compatible. Measures: 11. 5" long from the bottom of the bend to the end of the threads. 4" of thread length. Please see our description for further details, technical support available, or contact us for assistance. Front: 4 u-bolts for 1-3" lift leaf packs / OEM front leaf springs. Compatible with 1999-2004 ford f250 F350 Super Duty 4X4. The suspension specialists is an american company with fast shipping, and products you can count on. Note: 4wd 4x4 model required.
BrandTSS #ad
ManufacturerTSS #ad
Part Number221873020718
ModelF250 F350 Super Duty
WarrantyManufacturer Lifetime Warranty

9. Readylift


Readylift 67-2094UB M14 365mm Round Long U-Bolt Kit for Ford Superduty, Silver

Readylift #ad - Guaranteed against manufacturer defects in materials and workmanship for the life of your vehicle. Retains the oem factory ride while lifting your vehicle up to 4 inches. Pre-cut and E-coated U-bolts.
BrandReadylift #ad
ManufacturerReadyLift Suspension #ad
Height5 Inches
Length16 Inches
Weight10 Pounds
Width4 Inches
Part Number67-2094UB
WarrantyLifetime Warranty to Original Purchaser