The right 6-inch lift block depends on what you are raising: a truck’s rear suspension, an RV jack, or household furniture. For vehicle suspension, the Max Trac pair is a general fabricated steel option, while the ReadyLift block is specifically listed for 2017–2018 Ford Super Duty trucks. The other picks are RV stabilizer blocks or furniture risers—not substitutes for automotive suspension parts.
| Product | Best for | Important distinction |
|---|---|---|
| Max Trac 810060 | Suspension lift block shoppers | Pair of fabricated, powder-coated steel blocks |
| ReadyLift 66-2760 | Specified Ford Super Duty applications | Vehicle-specific tapered drive-shaft block |
| ROBLOCK Trailer Jack Blocks | RV and trailer support | Four-piece set with storage bag |
| Salahii Trailer Jack Block | Stackable RV leveling support | HDPE construction and locking stackable design |
| Hiceeden Bed Risers | Furniture height increase | Four plastic risers for furniture feet |
Max Trac 810060 Fabricated Steel Lift Blocks
Best for: Buyers looking for a pair of 6-inch fabricated blocks for a suspension application. The listing identifies the blocks as fabricated steel with a grey powder-coated finish, and its features specify a rear position. That makes this the most straightforward general suspension-block pick in this list.
Why it was selected: It is sold as a pair and is explicitly described as a 6-inch lift block product. The manufacturer information also references advanced manufacturing and fabricated lift blocks.
Limitation: The supplied details do not identify vehicle fitment or axle specifications. Confirm fitment, block dimensions, and installation requirements before purchase; do not assume these fit a particular truck.
ReadyLift 66-2760 Ford Super Duty Block
Best for: Owners shopping for the specific vehicle application named in the listing: a 2017–2018 Ford Super Duty. The product is described as a 6-inch-tall tapered block for a drive shaft and has a vehicle-specific fit type.
Why it was selected: Its stated height and application make it a more targeted choice than a universal-looking block when the buyer’s truck matches the listed years and model family.
Limitation: The supplied fitment information covers only 2017–2018 Ford Super Duty. Check the exact vehicle and configuration before ordering; the listing does not establish compatibility with other years or trucks.
ROBLOCK 6-Inch Trailer Jack Blocks
Best for: RV, camper, and trailer owners who need support blocks for a jack or stabilizer. The listing describes a four-piece set with a bag and says the blocks suit tongue jacks, posts, feet, fifth wheels, and round, square, or scissor stabilizers.
Why it was selected: It offers multiple blocks and broad stated jack and stabilizer uses, which is useful for buyers seeking RV support rather than a truck suspension lift.
Limitation: These are trailer jack and stabilizer blocks, not automotive suspension lift blocks. The provided details do not state a load capacity, so verify the product’s instructions and the load requirements for your setup.
Salahii Stackable Trailer Jack Block
Best for: RV and trailer owners who want a 6-inch support block with stackable height adjustment. Its listed material is injection-molded HDPE, with UV and water resistance described for outdoor use. The block is stated to fit tongue jacks, wheel jacks, scissor jacks, posts, feet, and stabilizers.
Why it was selected: Its locking stackable design makes it distinct from the other RV choice, which is sold as a four-piece set with a bag. The listing states a tested capacity of up to 40,000 pounds per block.
Limitation: The stated capacity does not make this a suspension component. Follow the maker’s stacking and support directions, and match the block to the equipment being supported.
Hiceeden 6-Inch Furniture Bed Risers
Best for: Buyers raising a bed, couch, table, desk, or other furniture—not a vehicle. This four-pack is made from plastic and is listed as 6 inches tall. The manufacturer specifies furniture feet no larger than 4 inches and a claimed capacity of up to 4,400 pounds per riser.
Why it was selected: It is a clear match for the household-furniture meaning of “6 inch lift blocks,” with a stated foot-size limit and four risers included.
Limitation: The product is designed for furniture and should not be used for vehicle lifting or trailer support. Check each furniture foot against the listed size limit.
Buying Guide: How to Choose 6-Inch Lift Blocks
Are you lifting a truck, an RV, or furniture?
Start with the application. Suspension lift blocks change a vehicle’s suspension setup, while RV jack blocks provide a support base and furniture risers elevate household items. These categories are not interchangeable. Select a product based on its stated purpose, not just its six-inch height.
What fitment details should you confirm?
For a truck, check the vehicle year, model, axle position, and the block’s dimensions and installation requirements. ReadyLift specifies a 2017–2018 Ford Super Duty application. Max Trac is described as a rear-position pair, but the supplied information does not name compatible vehicles. Confirm fitment before ordering either product.
Should you choose steel, HDPE, or plastic?
Material should match the task. Max Trac is described as fabricated steel with a powder-coated finish for a suspension use. Salahii lists HDPE for outdoor jack support, while Hiceeden uses plastic for furniture risers. Material alone does not prove compatibility or safe capacity; check the maker’s use instructions.
Do block height and load capacity tell the whole story?
No. A stated six-inch height does not establish that a block fits a particular jack, axle, or furniture leg. Likewise, a listed capacity applies only within the product’s intended use and instructions. Verify contact area, fit, stacking guidance, and the supported load before use.
Frequently Asked Questions
Are all 6-inch lift blocks made for trucks?
No. The term can describe suspension blocks, RV jack supports, or furniture risers. Check the product’s stated application before buying.
Which listed option is vehicle-specific?
ReadyLift 66-2760 is listed for 2017–2018 Ford Super Duty trucks. Confirm that the exact vehicle matches before purchase.
Can RV jack blocks be used as suspension lift blocks?
No. The ROBLOCK and Salahii products are described for trailer or RV jack and stabilizer support, not vehicle suspension.
How many furniture risers come with the Hiceeden set?
The listing describes a four-pack. It also specifies that applicable furniture feet should be 4 inches or less.
Does a six-inch block always raise a vehicle by six inches?
Not necessarily. The product’s stated height is not a guarantee of the final vehicle lift. Refer to the manufacturer’s fitment and installation information.