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SumoSprings Trailer Helper Springs - Single Axle - 3" Springs - 5.4K - Underslung - Preorder

Our Price: $999.99
COMING SOON! Micro-cellular trailer suspension springs mount above the leaf springs to create a cushion between the axle and frame, reducing bounce, hop, and sway while towing.That adjustment lets you position the spring where it needs to contact during suspension movement. Secure Mounting at the Leaf Springs Loose or shifting suspension hardware can undermine how a helper spring works in use.
  • Leaf Spring Enhancement System
  • Snowmobile Trailer
  • Car Hauler
  • Boat Trailer
  • Camper
  • Utility Trailer
  • 5400 lbs
  • Single Axle
  • SuperSprings Intl

SumoSprings Trailer Helper Springs - Single Axle - 2" Springs - 2.8K - Underslung - Preorder

Our Price: $429.99
COMING SOON! Micro-cellular trailer suspension springs mount above the leaf springs to create a cushion between the axle and frame, reducing bounce, hop, and sway while towing.That adjustment lets you position the spring where it needs to contact during suspension movement. Secure Mounting at the Leaf Springs Loose or shifting suspension hardware can undermine how a helper spring works in use.
  • Leaf Spring Enhancement System
  • Boat Trailer
  • Snowmobile Trailer
  • Car Hauler
  • Camper
  • Utility Trailer
  • 2800 lbs
  • Single Axle
  • SuperSprings Intl

SumoSprings Trailer Helper Springs - 2-1/2" Springs - 5.4K - Underslung - Preorder

Our Price: $849.99
COMING SOON! Micro-cellular trailer suspension springs mount above the leaf springs to create a cushion between the axle and frame, reducing bounce, hop, and sway while towing.That adjustment lets you position the spring where it needs to contact during suspension movement. Secure Mounting at the Leaf Springs Loose or shifting suspension hardware can undermine how a helper spring works in use.
  • Leaf Spring Enhancement System
  • Snowmobile Trailer
  • Car Hauler
  • Boat Trailer
  • Camper
  • Utility Trailer
  • 4400 lbs
  • Single Axle
  • SuperSprings Intl

SumoSprings Trailer Helper Springs - Single Axle - 2" Springs - 1.5K - Underslung - Preorder

Our Price: $399.99
COMING SOON! Micro-cellular trailer suspension springs mount above the leaf springs to create a cushion between the axle and frame, reducing bounce, hop, and sway while towing.That adjustment lets you position the spring where it needs to contact during suspension movement. Secure Mounting at the Leaf Springs Loose or shifting suspension hardware can undermine how a helper spring works in use.
  • Leaf Spring Enhancement System
  • Snowmobile Trailer
  • Car Hauler
  • Boat Trailer
  • Camper
  • Utility Trailer
  • 1500 lbs
  • Single Axle
  • SuperSprings Intl

Conventional Ramp Door Spring for 8' Wide Enclosed Trailer - Dual Spring - 185-lb Capacity

Our Price: $389.22
In Stock
Replace your old trailer door spring with this heavy-duty system. This dual-spring setup lets you easily open and close the ramp door on your enclosed trailer and eliminates the risk of freefalling. ...
Features: Ramp door spring lets you easily lift and lower the door on your enclosed trailer without risk of injury Helps to take on the weight of your trailer door so you don't have to Dual springs eliminate the risk of the ramp door collapsing and causing damage or injury If one cable falters, the other spring will prevent the trailer door from freefalling Spring reduces wear and helps prevent damage to door hinges System can be modified to fit your specific application Slide the bracket and cable drum down and cut the shaft to a shorter length Orange safety covers install on top of the bolt heads to prevent any unwanted adjustments Sturdy steel construction Made in the USA Specs: Application: 81" to 96" wide trailer door Dimensions: 95-1/2" wide x 4-3/4" tall Spring capacity: 185 lbs Cable length: 150" 1-Year limited warranty Warning: It is recommended that only individuals who have experience winding torsion springs install this product.
  • Dual Ramp Spring
  • Torsion Spring
  • Conventional Spring
  • 94 Inch Wide Spring
  • 151 - 185 lbs
  • M-3 and Associates
  • 150 Inch Cable

Conventional Ramp Door Spring for 8' Wide Enclosed Trailer - Dual Spring - 250-lb Capacity

Our Price: $686.55
In Stock
Replace your old trailer door spring with this heavy-duty system. This dual-spring setup lets you easily open and close the ramp door on your enclosed trailer and eliminates the risk of it freefalling. ...
Features: Ramp door spring lets you easily lift and lower the door on your enclosed trailer without risk of injury Helps to take on the weight of your trailer door so you don't have to Dual springs eliminate the risk of the ramp door collapsing and causing damage or injury If one cable falters, the other spring will prevent the trailer door from freefalling Spring reduces wear and helps prevent damage to door hinges System can be modified to fit your specific application Slide the bracket and cable drum down and cut the shaft to a shorter length Sturdy steel construction Made in the USA Specs: Application: 76" to 96" wide trailer door Dimensions: 96" wide x 4-3/4" tall Spring capacity: 250 lbs 1-Year limited warranty Cable length: 150" Warning: It is recommended that only individuals who have experience winding torsion springs install this product.
  • Dual Ramp Spring
  • Torsion Spring
  • Conventional Spring
  • 94 Inch Wide Spring
  • 231 - 250 lbs
  • M-3 and Associates
  • 150 Inch Cable

Conventional Ramp Door Spring for 7' Wide Enclosed Trailer - Dual Spring - 160-lb Capacity

Our Price: $215.32
In Stock
Replace your old trailer door spring with this heavy-duty system. This dual-spring setup lets you easily open and close the ramp door on your enclosed trailer and eliminates the risk of it freefalling. ...
Features: Ramp door spring lets you easily lift and lower the door on your enclosed trailer without risk of injury Helps to take on the weight of your trailer door so you don't have to Dual springs eliminate the risk of the ramp door collapsing and causing damage or injury If one cable falters, the other spring will prevent the trailer door from freefalling Spring reduces wear and helps prevent damage to door hinges System can be modified to fit your specific application Slide the bracket and cable drum down and cut the shaft to a shorter length Yellow safety covers install on top of the bolt heads to prevent any unwanted adjustments Sturdy steel construction Made in the USA Specs: Application: 60" to 82" wide trailer door Dimensions: 81" wide Spring capacity: 160 lbs Cable length: 150" 1-Year limited warranty Warning: It is recommended that only individuals who have experience winding torsion springs install this product.
  • Dual Ramp Spring
  • Torsion Spring
  • Conventional Spring
  • 81 Inch Wide Spring
  • 151 - 185 lbs
  • M-3 and Associates
  • 150 Inch Cable

SumoSprings Trailer Helper Springs w/ Line Relocation Bracket - Single Axle - 5K to 8K - Overslung

Our Price: $294.99
In Stock
Improves suspension, handling and safety. Progressive spring rate. Provides additional support as needed so you always have a smooth, comfortable ride.Features: Improves suspension, handling and safety Provides additional support as needed so you always have a smooth, comfortable ride Allows the leaf spring ample movement while cushioning light loads Becomes more rigid as more weight is added Increases stability, providing great performance while hauling heavy loads Raises trailer ride height Works independently side-to-side Helps compensate for off-center loads Reduces body roll when swerving and turning corners Works to eliminate trailer sway Acts as shock absorbers, taking the brunt of bumps and rough roads Reduces load on leaf spring assembly Extends the life of your trailer's suspension Designed to work with a suspension system that is in good working order 2 Jounce-style springs, line relocation bracket, mounting brackets and hardware are included Maintenance-free - no tubing to run or air pressure to monitor like with air springs Simple, no-drill installation Made in the USA Specs: Application: 5,000-lb to 8,000-lb single, overslung axle - springs sit over axle For tandem axle applications, use 2 kits Capacity: 900 lbs at 50 percent compression Do not exceed the trailer's weight-carrying capacity Spring dimensions: 5" tall x 4" diameter Compresses up to 65 percent of original height with full memory rebound Required clearance between top of spring plate and bottom of trailer frame: 5-5/16" - 6-1/2" Limited lifetime warranty 30-Day satisfaction guarantee Note: Does not work with spring plates wider than 4-1/4".
  • Leaf Spring Enhancement System
  • Boat Trailer
  • Car Hauler
  • Snowmobile Trailer
  • Camper
  • Utility Trailer
  • 8000 lbs
  • 7000 lbs
  • 5000 lbs
  • 6000 lbs
  • Single Axle
  • SuperSprings Intl

Conventional Ramp Door Spring for 8' Wide Enclosed Trailer - Dual Spring - 160-lb Capacity

Our Price: $382.73
In Stock
Replace your old trailer door spring with this heavy-duty system. This dual-spring setup lets you easily open and close the ramp door on your enclosed trailer and eliminates the risk of freefalling. ...
Features: Ramp door spring lets you easily lift and lower the door on your enclosed trailer without risk of injury Helps to take on the weight of your trailer door so you don't have to Dual springs eliminate the risk of the ramp door collapsing and causing damage or injury If one cable falters, the other spring will prevent the trailer door from freefalling Spring reduces wear and helps prevent damage to door hinges System can be modified to fit your specific application Slide the bracket and cable drum down and cut the shaft to a shorter length Orange safety covers install on top of the bolt heads to prevent any unwanted adjustments Sturdy steel construction Made in the USA Specs: Application: 69" to 96" wide trailer door Dimensions: 95-5/8" wide x 4-3/4" tall Spring capacity: 160 lbs Cable length: 150" 1-Year limited warranty Warning: It is recommended that only individuals who have experience winding torsion springs install this product.
  • Dual Ramp Spring
  • Torsion Spring
  • Conventional Spring
  • 94 Inch Wide Spring
  • 151 - 185 lbs
  • M-3 and Associates
  • 150 Inch Cable

Conventional Ramp Door Spring for 7' Wide Enclosed Trailer - Dual Spring - 120-lb Capacity

Our Price: $373.61
In Stock
Replace your old trailer door spring with this heavy-duty system. This dual-spring setup lets you easily open and close the ramp door on your enclosed trailer and eliminates the risk of it freefalling. ...
Features: Ramp door spring lets you easily lift and lower the door on your enclosed trailer without risk of injury Helps to take on the weight of your trailer door so you don't have to Dual springs eliminate the risk of the ramp door collapsing and causing damage or injury If one cable falters, the other spring will prevent the trailer door from freefalling Spring reduces wear and helps prevent damage to door hinges System can be modified to fit your specific application Slide the bracket and cable drum down and cut the shaft to a shorter length Yellow safety covers install on top of the bolt heads to prevent any unwanted adjustments Sturdy steel construction Made in the USA Specs: Application: 60" to 82" wide trailer door Dimensions: 81" wide Spring capacity: 120 lbs Cable length: 150" 1-Year limited warranty Warning: It is recommended that only individuals who have experience winding torsion springs install this product.
  • Dual Ramp Spring
  • Torsion Spring
  • Conventional Spring
  • 81 Inch Wide Spring
  • 86 - 120 lbs
  • M-3 and Associates
  • 150 Inch Cable

Conventional Ramp Door Spring for 8' Wide Enclosed Trailer - Single Spring - 150-lb Capacity

Our Price: $191.76
In Stock
Upgrade your trailer with this heavy-duty ramp spring. It provides smooth operation, reduces strain, and prevents freefalls. Designed for enclosed trailer doors 45-1/4"- 95-5/8" wide, this durable system ensures safe, reliable performance.Customizable Fit for Any Trailer: Adjustable Spring Length and Design Have a trailer with an unusual width? No problem! The spring fits doorways ranging from 45-1/4" to 95-5/8" wide.
  • Single Ramp Spring
  • Torsion Spring
  • Conventional Spring
  • 96 Inch Wide Spring
  • 121 - 150 lbs
  • M-3 and Associates
  • 150 Inch Cable

Conventional Ramp Door Spring for 8' Wide Enclosed Trailer - Dual Spring - 120-lb Capacity

Retail: $229.93
Our Price: $205.67
In Stock
Replace your old trailer door spring with this heavy-duty system. This dual-spring setup lets you easily open and close the ramp door on your enclosed trailer and eliminates the risk of freefalling. ...
Features: Ramp door spring lets you easily lift and lower the door on your enclosed trailer without risk of injury Helps to take on the weight of your trailer door so you don't have to Dual springs eliminate the risk of the ramp door collapsing and causing damage or injury If one cable falters, the other spring will prevent the trailer door from freefalling Spring reduces wear and helps prevent damage to door hinges System can be modified to fit your specific application Slide the bracket and cable drum down and cut the shaft to a shorter length Orange safety covers install on top of the bolt heads to prevent any unwanted adjustments Hardware for installing the brackets to your trailer is not included Sturdy steel construction Made in the USA Specs: Application: 60" to 96" wide trailer door Dimensions: 95-5/8" wide x 4-3/4" tall Spring capacity: 120 lbs Cable length: 150" 1-Year limited warranty Warning: It is recommended that only individuals who have experience winding torsion springs install this product.
  • Dual Ramp Spring
  • Torsion Spring
  • Conventional Spring
  • 94 Inch Wide Spring
  • 86 - 120 lbs
  • M-3 and Associates
  • 150 Inch Cable

Conventional Ramp Door Spring for 8' Wide Enclosed Trailer - Dual Spring - 230-lb Capacity

Our Price: $458.33
In Stock
Replace your old trailer door spring with this heavy-duty, conventional ramp door spring. This dual-spring setup lets you easily open and close the ramp door on your enclosed trailer and eliminates the risk of your ramp door freefalling.Specs: Application: 94-3/8" to 95-3/8" wide trailer door Dimensions: 96" wide x 4-7/8" tall x 5-3/4" deep Spring capacity: 230 lbs Cable length: 150" Features: Ramp door spring lets you easily lift and lower the door on your enclosed trailer without risk of injury Helps take on the weight of your trailer door so you don't have to Dual springs eliminate the risk of the ramp door collapsing and causing damage or injury If one cable falters, the other spring will prevent the trailer door from freefalling Spring reduces wear and helps prevent damage to door hinges System can be modified to fit your specific application Slide the bracket and cable drum down and cut the shaft to a shorter length Sturdy steel construction Made in the USA Warning: It is recommended that only individuals who have experience winding torsion springs install this product.
  • Dual Ramp Spring
  • Torsion Spring
  • Conventional Spring
  • 94 Inch Wide Spring
  • 186 - 230 lbs
  • TRC
  • 150 Inch Cable

SumoSprings Trailer Helper Springs w/ Line Relocation Bracket - Single Axle - 3K to 5K - Overslung

Retail: $284.43
Our Price: $267.99
In Stock
Improves suspension, handling and safety. Progressive spring rate. Provides additional support as needed so you always have a smooth, comfortable ride.Features: Improves suspension, handling and safety Provides additional support as needed so you always have a smooth, comfortable ride Allows the leaf spring ample movement while cushioning light loads Becomes more rigid as more weight is added Increases stability, providing great performance while hauling heavy loads Raises trailer ride height Works independently side-to-side Helps compensate for off-center loads Reduces body roll when swerving and turning corners Works to eliminate trailer sway Acts as shock absorbers, taking the brunt of bumps and rough roads Reduces load on leaf spring assembly Extends the life of your trailer's suspension Designed to work with a suspension system that is in good working order 2 Jounce-style springs, line relocation bracket, mounting brackets and hardware are included Maintenance-free - no tubing to run or air pressure to monitor like with air springs Simple, no-drill installation Made in the USA Specs: Application: 3,000-lb to 5,000-lb single, overslung axle - springs sit over axle For tandem axle applications, use 2 kits Capacity: 500 lbs at 50 percent compression Do not exceed the trailer's weight-carrying capacity Spring dimensions: 5" tall x 4" diameter Compresses up to 70 percent of original height with full memory rebound Required clearance between top of spring plate and bottom of trailer frame: 5-5/16" - 6-1/2" Limited lifetime warranty 30-Day satisfaction guarantee Note: Does not work with spring plates wider than 4-1/4".
  • Leaf Spring Enhancement System
  • Boat Trailer
  • Snowmobile Trailer
  • Camper
  • Car Hauler
  • Utility Trailer
  • 5000 lbs
  • 3000 lbs
  • 4000 lbs
  • Single Axle
  • SuperSprings Intl

SumoSprings Trailer Helper Springs w/ Line Relocation Bracket - Single Axle - 3K to 5K - Underslung

Our Price: $299.99
In Stock
Improves suspension, handling and safety. Progressive spring rate. Provides additional support as needed so you always have a smooth, comfortable ride.Features: Improves suspension, handling and safety Provides additional support as needed so you always have a smooth, comfortable ride Allows the leaf spring ample movement while cushioning light loads Becomes more rigid as more weight is added Increases stability, providing great performance while hauling heavy loads Raises trailer ride height Works independently side-to-side Helps compensate for off-center loads Reduces body roll when swerving and turning corners Works to eliminate trailer sway Acts as shock absorbers, taking the brunt of bumps and rough roads Reduces load on leaf spring assembly Extends the life of your trailer's suspension Designed to work with a suspension system that is in good working order 2 Jounce-style springs, line relocation bracket, mounting brackets and hardware are included Maintenance-free - no tubing to run or air pressure to monitor like with air springs Simple, no-drill installation Made in the USA Specs: Application: 3,000-lb to 5,000-lb single, underslung axle - springs sit under axle For tandem axle applications, use 2 kits Fits 1-3/4" wide spring packs Capacity: 500 lbs at 50 percent compression Do not exceed the trailer's weight-carrying capacity Spring dimensions: 4" tall x 4" diameter Compresses up to 70 percent of original height with full memory rebound Required clearance between top of spring pack and bottom of trailer frame: 6" - 8-5/8" Limited lifetime warranty 30-Day satisfaction guarantee
  • Leaf Spring Enhancement System
  • Car Hauler
  • Boat Trailer
  • Camper
  • Snowmobile Trailer
  • Utility Trailer
  • 5000 lbs
  • 3000 lbs
  • 4000 lbs
  • Single Axle
  • SuperSprings Intl

Spring-Eye Bolt with Locknut for Slipper Springs - 3-3/4" Long

Our Price: $17.08
In Stock
9/16" Diameter spring-retainer bolt is used to mount slipper spring inside front hanger. Includes locknut.Features: Suspension bolt attaches leaf spring to front hanger Included locknut secures in place on bolt Specs: Diameter: 9/16" Head size: 13/16" Length: Overall: 3-3/4" Under the head: 3-1/2"
  • Suspension Bolts
  • Utility Trailer
  • Car Hauler
  • Camper
  • 3-1/2 Inch Long
  • ABS Fasteners

Conventional Ramp Door Spring for 8' Wide Enclosed Trailer - Dual Spring - 150-lb Capacity

Retail: $228.57
Our Price: $214.51
In Stock
Replace your old trailer door spring with this heavy-duty system. This dual-spring setup lets you easily open and close the ramp door on your enclosed trailer and eliminates the risk of freefalling. ...
Specs: Application: 92-1/4" to 95-1/4" wide trailer door Dimensions: 96" wide x 4-7/8" tall x 7-1/2" deep Spring capacity: 150 lbs Cable length: 150" Features: Ramp door spring lets you easily lift and lower the door on your enclosed trailer without risk of injury Helps take on the weight of your trailer door so you don't have to Dual springs eliminate the risk of the ramp door collapsing and causing damage or injury If one cable falters, the other spring will prevent the trailer door from freefalling Spring reduces wear and helps prevent damage to door hinges System can be modified to fit your specific application Slide the bracket and cable drum down and cut the shaft to a shorter length Sturdy steel construction Made in the USA Warning: It is recommended that only individuals who have experience winding torsion springs install this product.
  • Dual Ramp Spring
  • Torsion Spring
  • Conventional Spring
  • 94 Inch Wide Spring
  • 121 - 150 lbs
  • TRC
  • 150 Inch Cable

Conventional Ramp Door Spring for 7' Wide Enclosed Trailer - Single Spring - 150-lb Capacity

Our Price: $219.97
In Stock
Replace your old trailer door spring with this heavy-duty, conventional ramp door spring. This single-spring setup lets you easily open and close the ramp door on your enclosed trailer. ...
Features: Ramp door spring lets you easily lift and lower the door on your enclosed trailer without risk of injury Helps take on the weight of your trailer door so you don't have to Spring reduces wear and helps prevent damage to door hinges System can be modified to fit your specific application Slide the bracket and cable drum down and cut the shaft to a shorter length Sturdy steel construction Made in the USA Specs: Application: 43" to 79" wide trailer door Dimensions: 79" wide x 4-7/8" tall x 7-1/2" deep Spring capacity: 150 lbs Cable length: 150" Warning: It is recommended that only individuals who have experience winding torsion springs install this product.
  • Single Ramp Spring
  • Torsion Spring
  • Conventional Spring
  • 79 Inch Wide Spring
  • 121 - 150 lbs
  • TRC
  • 150 Inch Cable

Conventional Ramp Door Spring for 6' Wide Enclosed Trailer - Single Spring - 120-lb Capacity

Our Price: $222.04
In Stock
Replace your old trailer door spring with this heavy-duty, conventional ramp door spring. This single-spring setup lets you easily open and close the ramp door on your enclosed trailer. ...
Specs: Application: 38" to 69" wide trailer door Dimensions: 69" wide x 4-7/8" tall x 7-1/2" deep Spring capacity: 120 lbs Cable length: 150" Features: Ramp door spring lets you easily lift and lower the door on your enclosed trailer without risk of injury Helps take on the weight of your trailer door so you don't have to Spring reduces wear and helps prevent damage to door hinges System can be modified to fit your specific application Slide the bracket and cable drum down and cut the shaft to a shorter length Sturdy steel construction Made in the USA Warning: It is recommended that only individuals who have experience winding torsion springs install this product.
  • Single Ramp Spring
  • Torsion Spring
  • Conventional Spring
  • 69 Inch Wide Spring
  • 86 - 120 lbs
  • TRC
  • 150 Inch Cable

Conventional Ramp Door Spring for 5' Wide Enclosed Trailer - Single Spring - 85-lb Capacity

Our Price: $172.62
In Stock
Replace your old trailer door spring with this heavy-duty, conventional ramp door spring. This single-spring setup lets you easily open and close the ramp door on your enclosed trailer. ...
Specs: Application: 32" to 56" wide trailer door Dimensions: 56" wide x 4-7/8" tall x 7-1/2" deep Spring capacity: 85 lbs Cable length: 135" Features: Ramp door spring lets you easily lift and lower the door on your enclosed trailer without risk of injury Helps take on the weight of your trailer door so you don't have to Spring reduces wear and helps prevent damage to door hinges System can be modified to fit your specific application Slide the bracket and cable drum down and cut the shaft to a shorter length Sturdy steel construction Made in the USA Warning: It is recommended that only individuals who have experience winding torsion springs install this product.
  • Single Ramp Spring
  • Torsion Spring
  • Conventional Spring
  • 56 Inch Wide Spring
  • 85 lbs or Less
  • TRC
  • 135 Inch Cable

Conventional Ramp Door Spring for 6' Wide Enclosed Trailer - Single Spring - 80-lb Capacity

Our Price: $194.86
In Stock
Replace your old trailer door spring with this heavy-duty, conventional ramp door spring. This single-spring setup lets you easily open and close the ramp door on your enclosed trailer. ...
If you have not worked with a torsion spring system before, we recommend contacting a local garage door company to install this system.
  • Single Ramp Spring
  • Torsion Spring
  • Conventional Spring
  • 66 Inch Wide Spring
  • 85 lbs or Less
  • M-3 and Associates
  • 150 Inch Cable

Conventional Ramp Door Spring for 6-1/2' Wide Enclosed Trailer - Single Spring - 150-lb Capacity

Our Price: $191.58
In Stock
Upgrade your trailer with this heavy-duty ramp spring. It provides smooth operation, reduces strain, and prevents freefalls. Designed for enclosed trailer doors 43"- 79" wide, this durable system ensures safe, reliable performance.Customizable Fit for Any Trailer: Adjustable Spring Length and Design Have a trailer with an unusual width? No problem! The spring fits doorways ranging from 43" to 79" wide.
  • Single Ramp Spring
  • Torsion Spring
  • Conventional Spring
  • 79 Inch Wide Spring
  • 121 - 150 lbs
  • M-3 and Associates
  • 150 Inch Cable

Conventional Ramp Door Spring for 8' Wide Enclosed Trailer - Single Spring - 150-lb Capacity

Our Price: $208.01
In Stock
Replace your old trailer door spring with this heavy-duty, conventional ramp door spring. This single-spring setup lets you easily open and close the ramp door on your enclosed trailer. ...
Specs: Application: 45-1/4" to 95-5/8" wide trailer door Dimensions: 96" wide x 4-7/8" tall x 7-1/2" deep Spring capacity: 150 lbs Cable length: 150" Features: Ramp door spring lets you easily lift and lower the door on your enclosed trailer without risk of injury Helps take on the weight of your trailer door so you don't have to Spring reduces wear and helps prevent damage to door hinges System can be modified to fit your specific application Slide the bracket and cable drum down and cut the shaft to a shorter length Sturdy steel construction Made in the USA Warning: It is recommended that only individuals who have experience winding torsion springs install this product.
  • Single Ramp Spring
  • Torsion Spring
  • Conventional Spring
  • 94 Inch Wide Spring
  • 121 - 150 lbs
  • TRC
  • 150 Inch Cable

SumoSprings Trailer Helper Springs w/ Line Relocation Bracket - Single Axle - 5K to 8K - Underslung

Our Price: $320.99
In Stock
Improves suspension, handling and safety. Progressive spring rate. Provides additional support as needed so you always have a smooth, comfortable ride.Features: Improves suspension, handling and safety Provides additional support as needed so you always have a smooth, comfortable ride Allows the leaf spring ample movement while cushioning light loads Becomes more rigid as more weight is added Increases stability, providing great performance while hauling heavy loads Raises trailer ride height Works independently side-to-side Helps compensate for off-center loads Reduces body roll when swerving and turning corners Works to eliminate trailer sway Acts as shock absorbers, taking the brunt of bumps and rough roads Reduces load on leaf spring assembly Extends the life of your trailer's suspension Designed to work with a suspension system that is in good working order 2 Jounce-style springs, line relocation bracket, mounting brackets and hardware are included Maintenance-free - no tubing to run or air pressure to monitor like with air springs Simple, no-drill installation Made in the USA Specs: Application: 5,000-lb to 8,000-lb single, underslung axle - springs sit under axle For tandem axle applications, use 2 kits Fits 1-3/4" wide spring packs Capacity: 900 lbs at 50 percent compression Do not exceed the trailer's weight-carrying capacity Spring dimensions: 5" tall x 4" diameter Compresses up to 65 percent of original height with full memory rebound Required clearance between top of spring plate and bottom of trailer frame: 7-7/16" - 8-5/8" Limited lifetime warranty 30-Day satisfaction guarantee
  • Leaf Spring Enhancement System
  • Boat Trailer
  • Camper
  • Car Hauler
  • Snowmobile Trailer
  • Utility Trailer
  • 5000 lbs
  • 6000 lbs
  • 8000 lbs
  • 7000 lbs
  • Single Axle
  • SuperSprings Intl