4x4 5" & 6" Rear Block/Ubolt Kits - 1980-2004 Ford F250/F350
4x4 5" & 6" Rear Block/Ubolt Kits - 1980-2004 Ford F250/F350 - 6" / Bare Steel is backordered and will ship as soon as it is back in stock.
Confirm vehicle fitment
Confirm vehicle fitment
Confirm fitment before ordering. Match the year, make, model, trim, engine, drivetrain and selected options shown on this page. If any detail is unclear, search your exact vehicle or contact us before checkout.
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Shipping expectations
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What’s included
What’s included
The product description and selected variant determine what is included. Items shown in lifestyle or installation photos are not included unless they are specifically listed in the description.
4x4 5" & 6" Rear Block/Ubolt Kits - 1980-2004 Ford F2...
4x4 5" & 6" Rear Block/Ubolt Kits - 1980-2004 Ford F250/F350 - 6" / Bare Steel is backordered and will ship as soon as it is back in stock.
Buy with confidence
Verify fitment, selected options, availability and included components before checkout. Secure payment options and order confirmation are provided at checkout.
Description
Description
Heavy Duty Rear Lift Blocks – 5" & 6" Options
Now Available in Powdercoated Black Finish
Upgrade your rear suspension with our heavy-duty lift blocks, precision machined to match factory dimensions and offer improved strength, driveline angle correction, and lift.
📏 Lift Height:
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6" Block:
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Replaces factory F-350 4" block = 2" of lift on F-350
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3" of lift on F-250 or trucks without a factory block
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5" Block:
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Provides 1" less lift than the 6"
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Note: Lift amount may vary slightly on FX4 and other special packages.
✅ Applications:
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1980–2004 Ford F-250 / F-350
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1980–1996 Ford Bronco / F-150
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Also works on older leaf-sprung Ford trucks (as early as '78)
🔧 Features:
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4° taper for driveline angle correction
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Captured U-bolt design prevents bolt spreading
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Multiple spring pin positions for versatile setup
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Mimics OEM bump stop leg
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5/8" center pin
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Fits:
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3" wide springs
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3.5" axle tubes
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Also compatible with 3.125" axle tubes found on older models and some Super Dutys
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These blocks are a perfect solution for mild lift adjustments or for correcting stance when swapping springs or axles. Strong, smartly engineered, and easy to install.
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