Dexter Axle Heavy Duty Leaf Spring Kit 7000lb
Dexter Axle's Heavy Duty Leaf Spring Kit 7000lb is best-in-class for heavy horse trailers because it provides an OEM-level 7000 lb capacity with rugged steel leaf packs designed for repeated heavy loads and long service life. Compared with the other kits listed it offers the highest rated load-handling and a cost-effective long-term solution versus rubber-based aftermarket options like Timbren or SuperSprings, though it produces a firmer ride than progressive systems such as Lippert's Equa-Flex.
7000 lb muscle
OEM-style fit
7000 lb muscle
OEM-style fit
Review Summary
"Owners report the Dexter 7000lb leaf spring kit delivers solid, long-term load support and durability for heavy horse trailers, with generally straightforward fitment though some recommend professional installation for best alignment and torque. Overall buyers praise its OEM-quality build and longevity under frequent use."
Smooth highway swagger
OEM-style 7,000 lb rated leaf springs for increased load capacity.
Smooth highway swagger
OEM-style 7,000 lb rated leaf springs for increased load capacity.
Enhanced Physical Well-Being
Time-Saving Convenience
Recreational Enjoyment
Dexter Axle's Heavy Duty Leaf Spring Kit 7000lb is best-in-class for heavy horse trailers because it provides an OEM-level 7000 lb capacity with rugged steel leaf packs designed for repeated heavy loads and long service life. Compared with the other kits listed it offers the highest rated load-handling and a cost-effective long-term solution versus rubber-based aftermarket options like Timbren or SuperSprings, though it produces a firmer ride than progressive systems such as Lippert's Equa-Flex.
7000 lb muscle
OEM-style fit
Smooth highway swagger
OEM-style 7,000 lb rated leaf springs for increased load capacity.
Pre-assembled multi-leaf pack for durability and reduced sag.
7000 lb muscle
OEM-style fit
Smooth highway swagger
OEM-style 7,000 lb rated leaf springs for increased load capacity.
Pre-assembled multi-leaf pack for durability and reduced sag.
$400-700 CAD
Lippert Components Equa-Flex Suspension Upgrade Kit
Lippert's Equa-Flex is the market leader for ride quality and axle control on horse trailers, using progressive suspension components and matched geometry to reduce axle hop, improve tracking and enhance horse comfort. While typically pricier than simple leaf-pack replacements or add-on bump-stop systems, Equa-Flex delivers superior damping and handling—making it the preferred investment when towing stability and ride refinement are the priority over raw load rating alone.
Progressive ride control
Plug-and-play swap
Progressive ride control
Plug-and-play swap
Review Summary
"Users say the Lippert Equa-Flex upgrade noticeably smooths ride and balances loads, improving towing stability; some reviewers note occasional hardware quality or wear concerns over many miles. Most buyers find it a cost-effective improvement but recommend correct installation and periodic checks."
Flex like yoga
Progressive-rate rubber torsion technology reduces jarring and improves stability.
Flex like yoga
Progressive-rate rubber torsion technology reduces jarring and improves stability.
Recreational Enjoyment
Time-Saving Convenience
Skill Development & Mastery
Lippert's Equa-Flex is the market leader for ride quality and axle control on horse trailers, using progressive suspension components and matched geometry to reduce axle hop, improve tracking and enhance horse comfort. While typically pricier than simple leaf-pack replacements or add-on bump-stop systems, Equa-Flex delivers superior damping and handling—making it the preferred investment when towing stability and ride refinement are the priority over raw load rating alone.
Progressive ride control
Plug-and-play swap
Flex like yoga
Progressive-rate rubber torsion technology reduces jarring and improves stability.
Bolt-on kit compatible with common horse trailer frames and axles.
Progressive ride control
Plug-and-play swap
Flex like yoga
Progressive-rate rubber torsion technology reduces jarring and improves stability.
Bolt-on kit compatible with common horse trailer frames and axles.
$500-900 CAD
Timbren SES Heavy Duty Spring Kit
Timbren's SES offers a compact, maintenance-free rubber spring system that installs inline with existing hangers to add progressive support and reduce sag on loaded horse trailers. It is often less expensive and faster to fit than full leaf-pack replacements like Dexter or Trailer Flex, providing a quieter, bump-absorbing ride alternative to metal springs, though it won't match the absolute load rating of a dedicated 7000 lb leaf kit.
Maintenance-free rubber
Axle-less smoothness
Maintenance-free rubber
Axle-less smoothness
Review Summary
"Timbren SES kits are consistently praised for maintenance-free rubber spring performance, durable construction, and clear improvement in sag control and ride quality over time. Long-term users frequently report minimal maintenance and reliable operation under heavy, repeated use."
Bounce be gone
Hollow rubber springs mount to the axle to provide additional support under compression.
Bounce be gone
Hollow rubber springs mount to the axle to provide additional support under compression.
Enhanced Physical Well-Being
Time-Saving Convenience
Timbren's SES offers a compact, maintenance-free rubber spring system that installs inline with existing hangers to add progressive support and reduce sag on loaded horse trailers. It is often less expensive and faster to fit than full leaf-pack replacements like Dexter or Trailer Flex, providing a quieter, bump-absorbing ride alternative to metal springs, though it won't match the absolute load rating of a dedicated 7000 lb leaf kit.
Maintenance-free rubber
Axle-less smoothness
Bounce be gone
Hollow rubber springs mount to the axle to provide additional support under compression.
Improves ride quality and prevents metal-to-metal contact on rough roads.
Maintenance-free rubber
Axle-less smoothness
Bounce be gone
Hollow rubber springs mount to the axle to provide additional support under compression.
Improves ride quality and prevents metal-to-metal contact on rough roads.
$300-600 CAD
SuperSprings SSA28 SumoSprings
SuperSprings SumoSprings SSA28 are progressive-rate rubber isolators that bolt between the axle and frame to reduce jolts, sway and nose-over without replacing the primary leaf springs—an affordable, bolt-on choice for horse owners seeking improved ride compliance. Compared to Timbren's SES they typically offer a slightly firmer progressive curve and very simple installation, positioning them as a cost-effective middle ground versus a full suspension overhaul like Lippert or a heavy-duty leaf replacement like Dexter.
Progressive load support
Space-saving design
Progressive load support
Space-saving design
Review Summary
"SuperSprings SumoSprings (SSA28) earn positive marks for adding progressive support and reducing sway, though some users find installation fiddly and report occasional noise or fitment variations on certain trailer models. Most owners appreciate the improved handling once properly installed."
Squash-proof comfort
Progressive-rate polyurethane springs that deliver variable support as load increases.
Squash-proof comfort
Progressive-rate polyurethane springs that deliver variable support as load increases.
Enhanced Physical Well-Being
Recreational Enjoyment
SuperSprings SumoSprings SSA28 are progressive-rate rubber isolators that bolt between the axle and frame to reduce jolts, sway and nose-over without replacing the primary leaf springs—an affordable, bolt-on choice for horse owners seeking improved ride compliance. Compared to Timbren's SES they typically offer a slightly firmer progressive curve and very simple installation, positioning them as a cost-effective middle ground versus a full suspension overhaul like Lippert or a heavy-duty leaf replacement like Dexter.
Progressive load support
Space-saving design
Squash-proof comfort
Progressive-rate polyurethane springs that deliver variable support as load increases.
Compressible design reduces trailer sag and improves ride with changing cargo weights.
Progressive load support
Space-saving design
Squash-proof comfort
Progressive-rate polyurethane springs that deliver variable support as load increases.
Compressible design reduces trailer sag and improves ride with changing cargo weights.
$300-600 CAD
Trailer Flex Heavy Duty Tandem Axle Spring Kit
Trailer Flex's Heavy Duty Tandem Axle Spring Kit is engineered specifically for tandem-axle horse trailers, emphasizing balanced weight distribution, improved axle alignment and extended leaf fatigue life across multiple axles. It competes with Dexter on durability but is tailored for tandem geometry, often delivering competitive fleet pricing and the matched-axle benefits that single-axle bump-stop or rubber systems cannot provide on multi-axle rigs.
Tandem-load equalizer
Built-for-rough
Tandem-load equalizer
Built-for-rough
Review Summary
"Trailer Flex tandem axle spring kits are reported to improve stability and load distribution when they fit correctly, but reviewers commonly cite inconsistent fitment and occasional need for modification or returned parts. Buyers who receive properly matched kits are satisfied, while others note quality-control variability."
Tank-grade tow
Complete tandem-axle leaf spring replacement built for heavy loads and frequent towing.
Tank-grade tow
Complete tandem-axle leaf spring replacement built for heavy loads and frequent towing.
Recreational Enjoyment
Enhanced Physical Well-Being
Time-Saving Convenience
Trailer Flex's Heavy Duty Tandem Axle Spring Kit is engineered specifically for tandem-axle horse trailers, emphasizing balanced weight distribution, improved axle alignment and extended leaf fatigue life across multiple axles. It competes with Dexter on durability but is tailored for tandem geometry, often delivering competitive fleet pricing and the matched-axle benefits that single-axle bump-stop or rubber systems cannot provide on multi-axle rigs.
Tandem-load equalizer
Built-for-rough
Tank-grade tow
Complete tandem-axle leaf spring replacement built for heavy loads and frequent towing.
Reinforced steel packs and heavy-duty shackles minimize deflection and increase safety.
Tandem-load equalizer
Built-for-rough
Tank-grade tow
Complete tandem-axle leaf spring replacement built for heavy loads and frequent towing.
Reinforced steel packs and heavy-duty shackles minimize deflection and increase safety.
$900-1600 CAD