Best Leaf Spring Axle Mounts for Trailers and Classic GM Cars

#1 · Best Overall

1. RDDY START Camaro Axle Mounts

• Weight: 6.26 lb
• Package Dimensions: 8.6 x 6.1 x 5.9 in

Best for: Classic GM multileaf restoration.

Why it ranks #1: Multi-leaf saddles list broad classic GM fitment, black E-coating, and canted or straight-on installation options for compatible Camaro, Firebird, and X-body cars.

Stamped saddles that can sit at a canted angle like the originals or straight-on give this RDDY START set useful installation flexibility for classic GM projects. Its stated applications cover 1967–1969 Camaro and Firebird, plus several X-body models, while black E-coating adds corrosion resistance.

The vehicle list covers 1967–1969 Camaro and Firebird with 10- or 12-bolt configurations, as well as Nova, GTO, Ventura, Omega, Apollo, and other X-body applications described in the listing. That range helps classic-car restorers identify a stated platform match. Stamping allows installation at a canted angle like the original saddles or straight-on, giving the installer two listed orientations. Black E-coating is specified to improve corrosion resistance and durability, a useful consideration for axle-mounted parts exposed to road conditions.

Skip it if you are mounting a trailer axle rather than restoring a listed GM car; KitchenKipper SP-3 is specified for 3-inch round trailer axle tubes.

Choose these for a multileaf classic-GM axle project needing the listed model coverage and orientation choice. The stated fit is platform-specific, so they are not a universal trailer axle mount.

Listed on Amazon as: Leaf Spring Axle Mounts Multileaf Compatible with 67-69 Camaro Firebird Nova Omega Skylark

#2 · Corrosion-Resistant

2. UnayKolb Rear Axle Mounts

Best for: Corrosion-coated GM rear mounts.

Why it ranks #2: These heavy-duty steel mounts list corrosion-resistant coating and fitment for 1967–1969 Camaro and Firebird, plus 1968–1979 Nova and other X-body cars.

A corrosion-resistant coating on heavy-duty steel makes these UnayKolb mounts relevant to classic GM rear-suspension work exposed to road salt and moisture. They are specified for multileaf springs and list Camaro, Firebird, Nova, Ventura, Apollo, and other X-body applications across the stated model years.

The multileaf application and listed GM fitment help narrow these mounts to a defined class of rear-suspension restoration: 1967–1969 Camaro and Firebird, plus 1968–1979 Nova and related X-body platforms. UnayKolb describes the mounts as the interface between axle housing and leaf springs, supporting rear-end alignment. Heavy-duty steel supplies the structural material, while the corrosion-resistant coating addresses exposure to road salt and moisture. The listing does not state an installation orientation or detailed dimensions, so those are not established here.

Skip it if you need stated canted-versus-straight installation options; RDDY START 101-139 explicitly describes both saddle orientations.

These suit a restorer seeking coated steel rear mounts for a listed multileaf GM application. Check the project against the stated vehicle range; the supplied details leave dimensions and orientation unspecified.

Listed on Amazon as: Rear Leaf Spring Axle Mounts For Camaro Firebird 67-69 Nova Omega 68-79

#3 · Classic GM Fit

3. AngyMeck Leaf Spring Mounts

Best for: Classic-car traction restoration.

Why it ranks #3: The two-piece mounts list 1967–1969 Camaro and Firebird fitment and additional Nova, GTO, Ventura, Omega, Apollo, and X-body applications.

AngyMeck ties its stated classic GM fitment to a specific handling goal: restoring factory-spec suspension tightness while reducing suspension slop. The two-piece axle-mount set covers Camaro, Firebird, Nova, and related X-body applications, and the listing also connects the mounts with improved traction during hard launches.

The application list names 1967–1969 Camaro and Firebird with 10- or 12-bolt configurations, plus 1968–1979 Nova, GTO, Ventura, Omega, Apollo, and other X-body cars. That gives restorers a defined platform range to compare against their vehicle. AngyMeck says the mounts restore factory-spec tightness and reduce suspension slop, linking the replacement to a more controlled feel. The listing also cites improved traction during hard launches and use on street or track, but supplies no material or dimensions.

Skip it if you need stated steel construction and a corrosion-resistant coating; UnayKolb UK499-207 lists both for its GM mounts.

Consider this pair for a listed classic GM restoration where suspension tightness and launch traction are priorities. Confirm that the vehicle belongs to the stated application range; material and dimensions are not supplied.

Listed on Amazon as: 2 PCS Leaf Spring Axle Mounts For 67-69 Camaro Firebird Nova

#4 · Detailed Fit Specs

4. GBGS Trailer Perch Seats

• Weight: 2.64 lb
• Package Dimensions: 4.96 x 4.84 x 2.28 in

Best for: Dimension-specific weld-on trailer seats.

Why it ranks #4: Four weld-on seats fit 3-inch round axles and specify 1-7/8-inch width, 5/8-inch center hole, 1/2-inch bolt holes, and 7/32-inch thickness.

A 7/32-inch-thick low-carbon-steel perch with a 1-7/8-inch width targets 1-3/4- or 2-inch springs on 3-inch round axles. GBGS supplies four weld-on seats, giving trailer builders a defined set and dimensions for positioning springs on an axle.

The 3-inch round-axle specification identifies the tube size, while the 1-7/8-inch seat width is listed for 1-3/4- or 2-inch-wide springs. Those dimensions give a fabricator a more specific starting point for matching axle and spring components. A 5/8-inch center-bolt hole and 1/2-inch bolt holes further describe the seat layout. Four pieces cover a set of axle seats, and weld-on installation suits fabrication work; the plain low-carbon-steel finish is the stated surface treatment.

Skip it if you need a bolt-on spring hanger rather than weld-on axle seats; MOUNTAIN_ARK Z-ZJ79 TC29 is a hanger bracket with a 9/16-inch bolt hole.

Pick this set for trailer fabrication when the 3-inch axle, listed spring widths, and weld-on approach match your build. Its stated dimensions help selection, but the installation method requires welding.

Listed on Amazon as: GBGS 4 Pack Leaf Spring Perch Seat for OD 3" Trailer Round Axle,7/32" Thick

#5 · Four-Piece Kit

5. Lonffery Trailer Perch Seats

• Weight: 2.8 lb

Best for: Four-seat axle replacement kit.

Why it ranks #5: The four-piece alloy-steel kit is designed for 3-inch round trailer axles and provides enough seats for one axle replacement or an upgrade.

A four-piece set for 3-inch round trailer axles gives this Lonffery kit enough seats for one axle replacement or an upgrade. Its specified fit targets medium-duty cargo trailers, flatbeds, and small farm trailers, while alloy steel construction supports a stable mounting point for towing under heavy loads.

The 3-inch round-axle fit narrows the application to trailers using that tube diameter, helping buyers match the seats to common cargo, flatbed, and small-farm trailer builds. Four seats provide a complete set for one axle, rather than requiring separate pieces to finish that job. Lonffery specifies high-strength alloy steel for durability and stability under heavy loads, making the kit relevant to replacement work where the spring seats must support a towing setup. The supplied information does not give spring width or seat dimensions.

Skip it if you need a stated spring-width match or detailed seat dimensions; GBGS ZJ83-T4 lists spring widths and center-bolt details.

Choose this four-seat kit for a 3-inch-axle cargo, flatbed, or small farm trailer replacement. It suits buyers who need a complete axle set, but the supplied details do not establish spring-width compatibility, so that fit remains a boundary.

Listed on Amazon as: Lonffery 4-Pack Trailer Axle Spring Perch Seats

#6

6. svteli Weld-On Perch Seats

• Weight: 2.05 lb
• Package Dimensions: 6.06 x 3.31 x 2.2 in

Best for: Measured 3-inch weld-on saddles.

Why it ranks #6: These two painted-iron weld-on perches fit 3-inch axle tubes and list dimensions of 4.9 by 2.5 by 1.4 inches with a 0.5-inch center hole.

Exact measurements make these svteli perches useful for fabrication planning: each fits a 3-inch tube and measures 4.9 by 2.5 by 1.4 inches. The two-piece set uses painted iron and a weld-on format, serving trailer, lifted-truck, or custom leaf-spring suspension projects.

The 3-inch tube fit establishes the intended axle diameter, while the listed 4.9-by-2.5-by-1.4-inch dimensions and 0.5-inch center hole give fabricators concrete values to compare with a build. Material thickness is specified as 0.2 inch, further informing layout planning. Painted iron construction is identified for weld-on fabrication, and the two-piece quantity suits a pair of seats. The listing also names trailer, lifted-truck, and custom suspension uses, but does not provide a spring-width match.

Skip it if you need a stated spring-width match and a four-seat set; GBGS ZJ83-T4 lists spring widths and supplies four perches.

These suit fabricators needing measured weld-on saddles for a 3-inch tube in a trailer, lifted-truck, or custom suspension project. The missing spring-width specification is an important fit boundary.

Listed on Amazon as: Leaf Spring Perch Seats for 3 Inch Axle Tubes, Heavy Duty Weld-On Steel Axle Saddle, Trailer Leaf Spring Suspension Mounting Bracket, Replaces 85090, 2 Pack

#7

7. OTMGTGM 3-Inch Axle Seats

• Weight: 2.42 lb
• Package Dimensions: 6.42 x 3.78 x 2.68 in

Best for: Carbon-steel 3-inch axle pair.

Why it ranks #7: The two carbon-steel seats are specified for a 3-inch axle tube and 2-1/2-inch spring width, though the listing provides fewer dimensional details.

A stated 2-1/2-inch seat width paired with a 3-inch axle-tube fit gives these OTMGTGM brackets a defined match for trailer or truck leaf-spring work. The two-piece set keeps the selection focused on a pair, and carbon steel construction offers a specified material for this mounting component.

The listed 2-1/2-inch seat width and 3-inch axle-tube diameter give buyers two concrete dimensions to compare with a project before installation. That specificity can help screen out mismatched axle-seat combinations, while the two-piece quantity suits work requiring a pair rather than a four-seat kit. OTMGTGM identifies carbon steel as the material and says production follows strict quality-control standards. The supplied information does not state spring width, weld details, or a vehicle-specific fitment, so application matching depends on the listed measurements.

Skip it if you need a four-seat trailer kit; Lonffery FPSSR300 supplies four seats for one axle replacement or upgrade.

This pair suits a buyer matching a 3-inch axle tube and 2-1/2-inch seat width in a leaf-spring project. Treat the missing vehicle and spring-width details as a fitment boundary before choosing it.

Listed on Amazon as: Set of 2 Leaf Spring Performance 3"Axle Seat Perch Mount Brackets Compatible with Trailer Truck P4120074

#8

8. KitchenKipper SP-3 Perch Seats

• Weight: 12.8 oz

Best for: SP-3 heavy-capacity trailer axles.

Why it ranks #8: The four alloy-steel SP-3 seats fit 3-inch round axle tubes and are listed for Model 5200, 6000, and 7000 capacity axles.

The SP-3 designation and listed 5,200-, 6,000-, and 7,000-capacity axle models distinguish these KitchenKipper seats from less specifically described trailer sets. Four alloy-steel perches fit 3-inch round axle tubes, giving a trailer suspension project a complete set of welded mounting points.

KitchenKipper identifies the seats as SP-3 replacements for 5,200-, 6,000-, and 7,000-capacity axles, which helps buyers screen the kit against a listed axle class. The 3-inch round-tube fit defines the axle interface, and four included seats provide a full set for mounting spring seats. Heavy-duty alloy steel is specified for durability under demanding trailer loads. The welded design is described as securing the seats to round trailers axles, so installation planning must account for welding rather than a bolt-on process.

Skip it if you need spring-width and bolt-hole measurements before fabrication; GBGS ZJ83-T4 lists spring widths and hole details.

This four-seat SP-3 set suits trailer owners matching a 3-inch axle tube and one of the listed capacity classes. It offers a defined axle application, with welding required for its stated attachment method.

Listed on Amazon as: 4 Pack SP-3 Trailer Axle Spring Perch Seats for 3" Round Tube Mount

#9

9. MOUNTAIN_ARK Spring Hangers

• Weight: 3.64 lb
• Package Dimensions: 5.83 x 3.82 x 3.03 in

Best for: 1-3/4-inch spring hanger set.

Why it ranks #9: These are frame hangers rather than axle mounts; their 1-7/8-inch inner width is specified for 1-3/4-inch single-axle springs.

A 1-7/8-inch inner width specifically fits a 1-3/4-inch single-axle spring, giving this MOUNTAIN_ARK four-pack a clear hanger-width target. Its 2-inch over-height and 3-inch hanger length add practical dimensions for planning a trailer frame layout before welding or assembly.

The stated 1-7/8-inch inner width is matched to 1-3/4-inch-wide single-axle springs, helping buyers assess the spring-to-hanger interface. A 2-inch over-height, 3-inch hanger length, and 1-7/16-inch top-to-hole-center measurement provide additional layout references when positioning the hanger. The 9/16-inch bolt hole defines the listed hole size, while low-carbon steel with a plain finish identifies the material and surface. Four brackets supply a set, but the listing does not describe a spring perch for the axle tube.

Skip it if you need a 3-inch axle-tube seat rather than a frame hanger; svteli XW24041014 is a weld-on perch for 3-inch tubes.

Choose this set for a trailer frame layout using 1-3/4-inch single-axle springs and the listed hanger dimensions. It is a spring hanger, so it does not replace an axle-mounted perch seat.

Listed on Amazon as: 4 Pack Trailer Leaf Spring Hanger Bracket for 1-3/4" Spring, 2" Height

#10

10. eoere Slipper Spring Hangers

• Weight: 5.19 lb

Best for: Two-inch slipper-spring hangers.

Why it ranks #10: These weld-on hangers attach trailer springs to the frame, not the axle, and are specified for 2-inch-wide slipper springs.

A 4-3/8-inch height and 2-1/4-inch inside width define these eoere hangers for 2-inch-wide slipper springs. The two-piece weld-on set is listed for front, center, or rear placement, giving trailer builders flexibility in choosing a hanger location while keeping the spring-width target specific.

The 2-1/4-inch inside-to-inside width is specified to fit 2-inch-wide springs, so it helps screen the hanger against the spring before frame work begins. At 4-3/8 inches tall with a 9/16-inch bolt hole, it also supplies key layout dimensions. The 5/16-inch hanger thickness and low-carbon-steel material describe the construction, while the plain finish is listed. Two hangers are included, and the universal front, center, and rear location listing supports placement planning; attachment is by welding.

Skip it if you need an axle-mounted perch rather than a frame hanger; Lonffery FPSSR300 supplies seats for 3-inch round trailer axles.

Select these for a trailer using 2-inch-wide slipper springs when the stated height and weld-on mounting suit the frame layout. They are hangers, not axle-tube spring-perch seats.

Listed on Amazon as: 2 PCS Weld On Trailer Leaf Spring Hanger Fits 2" Wide Slipper Springs