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Decent.
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Prices may varyThis product ranks #4 of 8 in Floor Jack.Three above it ↓
Last reviewed May 25, 2026
TL;DR BLACKHAWK's 3.5-ton alloy-steel service jack is well-reviewed by a large owner base, with no documented load-failure pattern across the review history. Capacity is self-reported · no ASME PASE or SAE J2495 certification is documented · and the 5.5-inch minimum height is too tall for lowered cars; the manufacturer-stated ~22-inch maximum reaches truck and SUV frame rails (early owner feedback measured actual extension closer to 19 inches · independent confirmation pending).
A 3.5-ton (7,000 lb) service jack from SFA Companies' Blackhawk line, alloy-steel chassis, 4-inch round swivel saddle, Fast Lift pump per manufacturer claims. Minimum saddle height is 5.5 inches · clears trucks, SUVs, and standard-height passenger cars; does not fit lowered or low-slung sports cars without pre-ramps. Manufacturer-stated maximum height is ~22 inches; early owner feedback measured actual maximum extension at about 19 inches, so the manufacturer figure is not independently confirmed. Saddle material is contradictory in available evidence and is not asserted either way; no saddle-slip pattern appears across the broad owner base. Stroke count for the Fast Lift claim is not community-confirmed at this time.
The geometry fits home mechanics and serious DIYers working on full-size trucks, SUVs, and standard-height passenger cars where ground clearance is not a constraint, and a large, well-rated owner base provides community confidence at the rated load. Skip if the lowest vehicle in the garage has under-5.5-inch ground clearance · a low-profile aluminum jack with a 3-inch minimum is the correct tool for that use case · or if third-party load certification is required for the work being done.
Sealed mechanical tool · no chemical exposure in normal use; hydraulic fluid is internal. Health score: 9.5 / Minimal Risk. The 3.5-ton capacity rating is self-reported with no third-party certification documented; community evidence across a large owner base shows no documented load-capacity failure pattern. The product listing carries a California Proposition 65 warning (typical for alloy-steel tool components; the underlying ingredient cannot be verified without an SDS, which floor jacks do not have). Alloy-steel chassis has a scrap-metal recycling pathway at end of life; community-reported lifespan is 5+ years for this service-jack class.
The Amazon listing for BLACKHAWK B6350 Fast Lift Service Jack, 3.5 Ton carries a California Prop 65 warning. California requires this warning on a very wide range of manufactured goods — including rubber, vinyl, plastic, and metal automotive parts — whenever trace exposure to any of roughly 900 listed substances (commonly phthalates or heavy metals) is possible, regardless of whether the specific product poses a meaningful health risk. As a passive tool, BLACKHAWK B6350 Fast Lift Service Jack, 3.5 Ton has no Safety Data Sheet, so there's no chemistry breakdown to translate beyond that.
Marketing copy from BLACKHAWK, via Amazon. Not editorial.
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