★★★★★ 4
Good fit
Worked well with no problems.
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Reviewed in the United States on February 24, 2026
Superlift 99-10 Chevy Silv/GMC Sierra 1500/2500 4WD 5in Block Kit
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Superlift 99-10 Chevy Silv/GMC Sierra 1500/2500 4WD 5in Block KitSuperlift 3859 5 Rear Block Kit 99 06 GM 1500 PU 99 10 2500 PU & SUV: 3859. 5 inch Block Kit 1999 2010 Chevy Silverado and GMC Sierra 1500 and 2500 4WD Leaf Spring Block Avg Install time: 1 3 Hours Feature: Covered Limited Lifetime Warranty Feature: Includes: 2 cast iron blocks, four U bolts, all nuts and washers needed for installation Google Product Type: Rear Block Kits Lift Height: 5 in Title: SUPERLIFT BLK KIT GM K2500 00 10 5'' Established in
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- Standard: 3-7 business days
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4.8 ★★★★★
Based on 487 reviews
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Product Reviews
★★★★★ 5
Great replacement kit
Called around for quotes to get them replaced and everyone was quoting over $2k just for bellows. Figured I’d give it a try. The rubber is good quality and feels soft. Time will tell but this is an easy job if you’re mechanically inclined. Make sure you replace the plastic water pickup fitting while you’re at it. Found mine to be cracked on disassembly and had to wait for a new one. Should be a easy 3-4 hour job if your not doing the bearing and only doing bellows
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Reviewed in the United States on August 26, 2024
★★★★★ 3
Just ok
Qualities OK, but for Marine applications might want better
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Reviewed in the United States on August 3, 2025
★★★★★ 5
Great quality
Just as described.
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Reviewed in the United States on July 22, 2025
★★★★★ 5
Bellows kit review initial inspection’s
Very good quality. The hose clamps were event the better ones you have to pay extra in most cases.
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Reviewed in the United States on April 6, 2025
