Best Lift Kit For Trailer: Compare Axle and Torsion Kits

#1 · Best Overall

1. AGILLE Trailer Over/Under Kit

Best for: 2-3/8-inch axle clearance raiser.

Why it ranks #1: Designed for 3,500-pound axles with 2-3/8-inch round tubes and compatible double-eye leaf-spring suspensions; verify the axle size before buying.

The AGILLE kit repositions a 3,500-pound axle relative to its leaf springs, providing a way to add trailer-frame clearance without changing to a different axle size. Its specific 2-3/8-inch round-tube fit makes it a focused option for compatible sprung trailers rather than a universal lift solution.

Compatibility is centered on 2-3/8-inch round axle tubes and suitable double-eye leaf-spring suspension, so buyers can assess the key fit points before choosing this conversion. Repositioning the axle relative to the springs supports additional frame clearance, while the iron construction supplies the kit’s stated material. The listing identifies Dexter K71-384-00 applications, but excludes 3-inch and square tubes, as well as other axle diameters; those restrictions make axle measurement essential.

Skip it if you have a 3-inch or square axle; the SPARKWHIZ K7138400 kit also specifies 2-3/8-inch tubes, so it is not a fit alternative.

Choose this AGILLE conversion for a 3,500-pound trailer with a 2-3/8-inch round axle tube and suitable double-eye springs when frame clearance is the goal. It is not appropriate for square or differently sized axles.

Listed on Amazon as: Trailer Axle Over/Under Conversion Kit for Dexter K71-384-00, 3500lb 2-3/8"

#2 · Best Lift Range

2. SPARKWHIZ Over/Under Kit

Best for: Leaf-spring axle conversion.

Why it ranks #2: Fits 3,500-pound, 2-3/8-inch axles with 1-3/4-inch leaf springs and lists a 4–5-inch lift plus conversion hardware.

The SPARKWHIZ conversion lists a 4–5-inch lift for 3,500-pound axles with 2-3/8-inch tubes, providing a substantial rise for clearance or towing alignment. Its specified 1-3/4-inch leaf-spring width also makes this a more targeted choice than a general torsion-axle riser.

The kit’s stated axle capacity, tube diameter, and spring width give buyers three concrete fit checks: 3,500 pounds, 2-3/8 inches, and 1-3/4 inches. The 4–5-inch lift is intended to improve ground clearance or towing alignment, linking the conversion to both road clearance and trailer setup. Included components—U-bolts, tie plates, spring seats, spacers, and nuts—cover the listed conversion hardware rather than leaving those components unspecified.

Skip it if you have a 4400-pound Diamond torsion axle; TXINGMENG LC270682 specifies that axle type and provides a 3-1/2-inch riser lift.

This SPARKWHIZ kit fits buyers converting a specified 3,500-pound, 2-3/8-inch leaf-spring axle for a 4–5-inch rise. Check the stated spring width as well; its application is not a general torsion-axle lift.

Listed on Amazon as: K7138400 Trailer Axle Over/Under Conversion Flip Kit

#3 · Best 4400-Pound Fit

3. TXINGMENG LC270682 Riser Kit

Best for: 4400-pound Diamond axle owners.

Why it ranks #3: Specifies 4,400-pound Diamond torsion axles, 9-inch hole spacing, a 3-1/2-inch lift, and supplied mounting fasteners.

A 3-1/2-inch lift is the defining figure for the TXINGMENG LC270682 riser kit, giving compatible 4400-pound Diamond torsion axles added ground clearance and room for larger tires. Its 9-inch hole spacing and supplied mounting hardware make the intended bolt-on arrangement easier to evaluate.

Compatibility with 4400-pound Diamond torsion axles and the matching LC270682, 164888, and 164882 references helps narrow the application before installation. The 3-1/2-inch vertical rise targets added clearance and larger-tire space, while 9-inch center-to-center mounting holes support alignment with the specified frame spacing. The package lists two risers, zinc-plated washers and nuts, and Grade 5 cap screws, supplying the named fasteners for the stated direct bolt-on installation.

Skip it if you have a 3,500-pound leaf-spring axle; the SPARKWHIZ K7138400 kit specifies that axle type and capacity instead.

Pick this TXINGMENG kit for a compatible 4400-pound Diamond torsion axle when a 3-1/2-inch rise, extra ground clearance, or larger-tire space is wanted. The axle application and 9-inch hole spacing define its fit.

Listed on Amazon as: LC270682 Axle Riser Kit 4400# Torsion Axle 3.5" Lift 9" Hole Spacing

#4 · Best Single-Axle Range

4. Cindervane K71-707-01 Kit

Best for: Single-axle RV torsion lift.

Why it ranks #4: Lists a 3-inch lift for single torsion axles rated 2,300–4,000 pounds and includes spacers and mounting hardware.

The Cindervane K71-707-01 specifies an approximately 3-inch lift for compatible single-axle RV and trailer torsion systems, adding ground clearance for uneven roads. Its stated 2,300-to-4,000-pound capacity range gives owners a useful starting point for narrowing the intended axle application.

This kit is listed for single-axle trailers with torsion axles rated from 2,300 to 4,000 pounds, and for side-mounted axle-bracket applications. Those limits help distinguish its intended setup before installation. The approximately 3-inch clearance increase addresses uneven-road clearance, while included lift spacers, bolts, washers, and locking nuts provide the listed mounting hardware. The supplied information does not identify a particular lift-bracket hole spacing, so the capacity and side-mount format are the clearest fit details.

Skip it if you need a stated 3-1/2-inch rise for a 4400-pound Diamond axle; TXINGMENG LC270682 lists that combination.

Consider the Cindervane kit for a single-axle RV or trailer with a 2,300-to-4,000-pound torsion axle and side-mounted brackets. Its approximately 3-inch lift suits clearance needs, but the bracket format is a key boundary.

Listed on Amazon as: K71-707-01,Torflex Lift Kit for RV Trailers,Fits #9#10#11#12 Axles

#5

5. YllJYK K-71-725-02 Kit

Best for: Tandem Torflex #12 owners.

Why it ranks #5: Targets a 7,000-pound tandem Torflex #12 axle and gives top and side mounting-hole spacing for checking bracket fit.

A stated 7,000-pound tandem-axle rating sets the YllJYK K-71-725-02 apart for buyers seeking a Torflex #12 lift kit. Its listed bracket dimensions give a practical way to compare mounting geometry with an existing axle setup before planning an installation.

The listing identifies top mounting holes 9 inches center to center and side holes 9.5 inches center to center, giving buyers specific spacing to check against the mounting arrangement. A 2.5-inch top-bracket width and 12-inch axle-bracket length further describe the interface. The product is presented as a replacement for Dexter Torflex #12 applications, and its tandem 7,000-pound rating narrows its intended use; the supplied details do not state a lift height.

Skip it if you need a stated lift height before selecting a kit; TXINGMENG LC270682 specifies a 3-1/2-inch rise for compatible 4400-pound axles.

This YllJYK kit suits owners comparing a replacement lift for a 7,000-pound tandem Torflex #12 setup, especially when bracket dimensions matter. Its listing gives no lift-height figure, so buyers needing that measurement should look elsewhere.

Listed on Amazon as: K-71-725-02 Replace for Dexter Torflex #12 Lift Kit 7000# Axle 3-1/8 inch

#6

6. Generic K71-724-01 Kit

Best for: 5200-pound Torflex #11 owners.

Why it ranks #6: Specified for a 5,200-pound single Torflex #11 axle, with 2-7/8-inch lift-kit designation and 9-inch top-hole spacing.

The Generic K71-724-01 is specified for a 5,200-pound single Torflex #11 axle, giving owners a model-specific replacement lift-kit option. Its listed 2-7/8-inch axle dimension and bracket-hole spacing provide concrete checkpoints for comparing the part with an existing setup.

The listing identifies a single-axle Torflex #11 application rated at 5,200 pounds and gives top mounting holes 9 inches center to center, with side holes 9.5 inches apart. It also specifies a 2.5-inch top-bracket width and an 11-inch axle-bracket length. Together, those dimensions help buyers assess the mounting layout and bracket interface; the supplied details do not state a lift height, so they support fit evaluation more than clearance planning.

Skip it if you need a clearly stated lift amount; TXINGMENG LC270682 specifies a 3-1/2-inch lift for compatible 4400-pound Diamond axles.

This Generic kit is for owners matching a 5,200-pound single Torflex #11 setup who can use the listed bracket dimensions to assess fit. Since no lift height is supplied, it offers limited guidance for clearance targets.

Listed on Amazon as: K71-724-01 Fits For DEXTER Torflex Lift Kits #11 5200# Single Axle 2-7/8" Torsion Axle Lift Kit – Trailer Lift Kit Replacement

#7

7. Generic K71-707-02 Kit

Best for: 3500-pound tandem torsion owners.

Why it ranks #7: Its title specifies a 3,500-pound tandem torsion axle and 2-5/8-inch lift, but the description conflicts with the lift-kit listing.

A stated 2-5/8-inch lift gives this Generic kit a defined height increase for 3,500-pound tandem trailer axles, with Dexter Torflex named in the title. That combination makes it relevant to buyers seeking a torsion-axle lift rather than a leaf-spring over-under conversion.

The title identifies a 3,500-pound tandem axle, a 2-5/8-inch lift, and Dexter Torflex, providing the principal application details for screening. The supplied product information does not give bracket spacing or a parts list, so buyers have limited guidance for checking installation geometry. Additional description text refers to an electric over-hydraulic brake pump actuator, which does not clarify the lift kit’s mounting arrangement; the title remains the supported basis for assessing this product.

Skip it if you need mounting-hole spacing and a hardware list; TXINGMENG LC270682 supplies those details for its compatible 4400-pound Diamond torsion kit.

Consider this Generic kit if your trailer has the stated 3,500-pound tandem Dexter Torflex application and a 2-5/8-inch rise suits the goal. The listing omits mounting dimensions and hardware details, limiting fit planning.

Listed on Amazon as: Lift Kit 3500# Tandem Trailer Axle 2-5/8" Lift Torsion for Dexter Torflex

#8

8. Generic LC270682 Riser Kit

Best for: 4400-pound Lippert RV owners.

Why it ranks #8: Identifies a 4,400-pound torsion axle and 3-1/2-inch lift, but provides fewer fitment and hardware details than the other riser listing.

The listed 3-1/2-inch lift identifies this LC270682 riser kit for compatible 4400-pound torsion axles, adding a specific clearance target for Lippert RV and camper owners. Its title names replacement references 164888 and “Diamond,” helping focus the fit check on the intended axle family.

The product title specifies a 4400-pound torsion-axle riser and a 3-1/2-inch lift, which links its use to a defined capacity and clearance increase. It names Lippert RV and camper parts 164888 and replacement Diamond axle risers, giving buyers the stated application references to compare. The supplied listing does not provide hole spacing or an itemized fastener set, so those details cannot be used here to establish installation alignment or hardware contents.

Skip it if you need listed 9-inch hole spacing and included mounting hardware; TXINGMENG LC270682 provides those details for its 4400-pound Diamond kit.

This Generic LC270682 option suits Lippert RV or camper owners seeking a 3-1/2-inch rise for a 4400-pound torsion axle. Its title gives application references, but the listing lacks mounting-spacing details for planning installation.

Listed on Amazon as: LC270682 Trailer 4400# Torsion Axle Riser Kit 3-1/2" Lift,for Lippert RV Camper Parts 164888,Replacement "Diamond" Axle Risers Kit 

#9

9. lopmou K71-724-01 Kit

Best for: Torflex #11 replacement shoppers.

Why it ranks #9: The listing names a 5,200-pound single-axle 2-7/8-inch torsion kit, but supplies little additional fitment or installation information.

The lopmou listing names the K71-724-01 replacement for a 5,200-pound single-axle, 2-7/8-inch Torflex #11 application. Those title details give owners a direct way to screen for the stated axle family and size, though the listing supplies little else about installation.

The title provides three useful identifiers—K71-724-01, 5,200-pound single axle, and 2-7/8-inch torsion axle—so buyers can compare the stated application with their existing equipment. It also identifies the product as a lift-kit replacement, but does not provide mounting-hole spacing, bracket dimensions, included hardware, or a lift-height figure. That sparse specification set makes it best suited to shoppers already matching the named replacement application rather than those planning a lift around detailed measurements.

Skip it if you need published bracket dimensions and mounting-hole spacing; Generic K71-724-01 lists those measurements for its Torflex #11 kit.

This lopmou option is for owners already identifying a 5,200-pound single Torflex #11 setup with a 2-7/8-inch axle. Its sparse listing limits installation planning, so detailed dimensions may be needed before choosing it.

Listed on Amazon as: K71-724-01 Fits for Lift Kits #11 5200# Single Axle 2-7/8" Torsion Axle Lift Kit – Trailer Lift Kit Replacement

#10

10. MORryde AllTrek 4000

Best for: Rough-road fifth-wheel towing.

Why it ranks #10: This is a tandem suspension upgrade offering 4 inches of suspension travel, not a specified axle lift kit for raising trailer height.

Four inches of suspension travel is the MORryde AllTrek 4000’s central feature, intended to help protect a fifth wheel or travel trailer on rough roads. Rather than specifying a height-raising axle conversion, this tandem-axle upgrade focuses on suspension movement and a smoother towing experience.

The AllTrek 4000 provides 4 inches of suspension travel, which the listing connects to protection from rough roads and smoother, more comfortable towing. Its bolt-on installation is described as simple, giving buyers a stated installation approach without implying a particular lift height. The TG2-35 is identified as a tandem-axle, 35-inch-wheelbase kit, so those setup details matter when checking whether this suspension upgrade matches the trailer; it is not presented as an axle riser.

Skip it if you need a stated axle lift for a 4400-pound Diamond torsion setup; TXINGMENG LC270682 specifies a 3-1/2-inch riser lift.

Choose MORryde AllTrek 4000 if your tandem-axle, 35-inch-wheelbase trailer needs suspension travel for rough-road towing. Its purpose is ride protection and comfort, not a specified increase in axle or frame height.

Listed on Amazon as: MORryde TG2-35 – AllTrek 4000 Suspension Upgrade – Tandem Axle, 35'' Wheelbase Kit