Load Pro Series

Load Pro Series

LP-35

  • Heaviest Loads
  • 4-Leaf Stack
  • 3500 lbs. Level Load Capacity
  • Available in Progressive or Constant Rate
  • Offers the Maximum in Carrying Capacity
  • Recommended for 3/4 Ton and 1 Ton Applications
  • Mounting kit sold separately

LP-25

  • Heavy Loads
  • 3-Leaf Stack
  • 2500 lbs. Level Load Capacity
  • Progressive Rate Design is Fully Adjustable
  • Design can handle the load 24/7
  • Mounting kit sold separately

About The Load Pro Series

This Hellwig Helper Spring set the standard for all other aftermarket helper springs. Featuring Progressive Spring Rate and Fulltime Spring Rate design, this spring is the workhorse of the Hellwig Spring line. With the Progressive design the vehicle must be loaded and its spring compressed to activate the Hellwig Spring, therefore as the vehicles load increases the Hellwig Helper Spring progressively increases its resistance to the load. In the Fulltime design the Hellwig Spring immediately reacts to the vehicles load, therefore compressing very little as load is applied to the vehicle.

Manufactured with heat treated ASTM 5160 alloy spring steel these units increase your vehicles level load carrying capacity up to the manufacturer’s Gross Vehicle Weight Rating. Designed to install on full size pick-up trucks and vans, this unit requires mounting hardware to accommodate 2 1/2″ or 3″ wide leaf springs. When ordering be sure to identify the spring kit and the appropriate mounting hardware kit to complete the installation. Simple bolt on design using common hand tools provide the installer ease of installation and the vehicle owner hassle free use. “Set it and forget it”. The LP 25 is rated at 2500lbs level load carrying capacity and the LP 35 is rated at 3500lbs level load carrying capacity, not exceed the vehicles Gross Vehicle Weight Rating.

Heavy Duty Load Control Applications

MakeYearApplicationEZ-990Pro-SeriesLP-25LP-35Hellwig Air
Chevrolet/GMC63-72C10,C20 w/ Rear Leaf Springs991 (6)N/A2505N/A6400 (4)
Chevrolet/GMCInstall Kit (Load Pro Only)25250
Chevrolet/GMC67-72K10,K20 Pickup and Suburban991 (6)61902251035106400 (4)
Chevrolet/GMCInstall Kit (Load Pro Only)2525025250
Chevrolet/GMC73-87C10,K10 Pickup991 (6)61902251035106400 (4)
Chevrolet/GMCInstall Kit (Load Pro Only)2525025250
Chevrolet/GMC88-98C&K 1500 Pickup98561902251035106005 (4)
Chevrolet/GMCInstall Kit (Load Pro Only)2525025250
Chevrolet/GMC99-061500 Silverado & Sierra 2WD P/U98661902251035106012
Chevrolet/GMCInstall Kit (Load Pro Only)2525025250
Chevrolet/GMC99-061500 Silverado & Sierra 4WD P/U98661902251535156012
Chevrolet/GMCInstall Kit (Load Pro Only)2525025250
Chevrolet/GMC20071500 Silverado Classic & Sierra Classic 2WD P/U98661902251035106012
Chevrolet/GMCInstall Kit (Load Pro Only)2525025250
Chevrolet/GMC20071500 Silverado Classic & Sierra Classic 4WD P/U98661902251535156012
Chevrolet/GMCInstall Kit (Load Pro Only)2525025250
Chevrolet/GMC07-101500 Silverado & Sierra 2WD,4WD P/U 987 (5)6190225153515N/A
Chevrolet/GMCInstall Kit (Load Pro Only)2525025250
Chevrolet/GMC02-061500HD 2WD,4WD P/U N/A61901252735276012
Chevrolet/GMCw/ 43"or Longer Base Leaf Install Kit (Load Pro Only)2525025250
Chevrolet/GMC73-87C20,K20 PickupN/A61902251035106400 (4)
Chevrolet/GMCInstall Kit (Load Pro Only)2525025250
Chevrolet/GMC88-00C&K 2500 PickupN/A61902251035106005 (4)
Chevrolet/GMCInstall Kit (Load Pro Only)2525025250
Chevrolet/GMC01-06C2500 LD 2WD,4WD P/U N/A61901251535156012
Chevrolet/GMCw/ 43"or Longer Base Leaf Install Kit (Load Pro Only)2525025250
Chevrolet/GMC01-102500 HD 2WD,4WD P/U N/A61901252735276006
Chevrolet/GMCInstall Kit (Load Pro Only)2525025250
Chevrolet/GMCw/ 2" Rear Lift6014
Chevrolet/GMCw/ 4" Rear Lift6016
Chevrolet/GMC73-87C30,K30 PickupN/AN/A2510 (1)3510 (1)6400 (4)
Chevrolet/GMCInstall Kit (Load Pro Only)2540025400
Chevrolet/GMC73-90C30 Truck Chassis991 (6)N/A2505 (1)3505 (1)6400 (4)
Chevrolet/GMCInstall Kit (Load Pro Only)2540025400
Chevrolet/GMC88-00C&K 3500 PickupN/A61902 (1)2510 (1)3510 (1)6005 (4)
Chevrolet/GMCInstall Kit (Load Pro Only)2540025400
Chevrolet/GMC88-00C&K 3500 DuallyN/AN/A2515 (1)3515 (1)N/A
Chevrolet/GMCInstall Kit (Load Pro Only)2540025400
Chevrolet/GMC01-103500 HD 2WD,4WD P/U N/A61906 (1)2527 (1)3527 (1)6006
Chevrolet/GMCInstall Kit (Load Pro Only)2540025400
Chevrolet/GMC73-87Blazer & Suburban w/o Rear A/C991 (6)N/A25103510N/A
Chevrolet/GMCInstall Kit (Load Pro Only)2525025250
Chevrolet/GMC88-00Blazer, Tahoe, Suburban, Yukon w/o Rear A/C991 (6)N/A25103510N/A
Chevrolet/GMCInstall Kit (Load Pro Only)2525025250
Chevrolet/GMC00-041500 Avalanche, Tahoe, Suburban, Yukon, Escalade1901N/AN/AN/A
Chevrolet/GMCPowerlift Rear Air Suspension ( Replaces Rear Coil Springs)6090
Chevrolet/GMCPowerlift Rear Air Suspension ( w/o compressor,lvl valve, & tank)6091
Chevrolet/GMC05-061500 Avalanche, Tahoe, Suburban, Yukon, EscaladeN/AN/AN/AN/A
Chevrolet/GMCPowerlift Rear Air Suspension ( Replaces Rear Coil Springs)6090
Chevrolet/GMCPowerlift Rear Air Suspension ( w/o compressor,lvl valve, & tank)6091
Chevrolet/GMC07-101500 Avalanche, Tahoe, Suburban, Yukon, EscaladeN/AN/AN/AN/A
Chevrolet/GMCPowerlift Rear Air Suspension ( Replaces Rear Coil Springs)6097
Chevrolet/GMCPowerlift Rear Air Suspension ( w/o compressor,lvl valve, & tank)6091
Chevrolet/GMC72-06G10-G1500 Van w/o Rear A/C991 (6)N/A2510N/AN/A
Chevrolet/GMCInstall Kit (Load Pro Only)2525025250
Chevrolet/GMC72-06G20,G30,G2500,G3500 Van w/o Rear A/CN/AN/A25109511N/A
Chevrolet/GMCInstall Kit (Load Pro Only)2525025250
Chevrolet/GMC07-101500-3500 Express Van w/o Rear A/CN/A61902N/AN/AN/A
Ford65-72F100 2WD991 (6)61902250535056400 (4)
FordInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Ford67-72F100 4WD991 (6)2510N/A6400 (4)
FordInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Ford73-79F100-F150 2WD,4WD 991 (6)61902251035106400 (4)
FordInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Ford80-96F100-F150 2WD,4WD991 (6)619032510N/A6400 (4)
FordInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Ford97-03F150 2WD,4WD991 (6)619032520N/AN/A
FordInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Ford01-03F150 Super Crew 2WDN/A619032520N/AN/A
FordInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Ford01-03F150 Super Crew 4WDN/A619032510N/AN/A
FordInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Ford04-08F150 2WD984 (5)N/AN/AN/A6150
FordSpecial EZ-990 spring to clear shock crossmember
Ford04-08F150 4WD984 (5)N/AN/AN/A6154
FordSpecial EZ-990 spring to clear shock crossmember
Ford09-10F150 2WD,4WD989 (5)N/AN/AN/AN/A
FordSpecial EZ-990 spring to clear shock crossmember
Ford65-72F250 2WD991 (6)619022505 (1)3505 (1)6400 (4)
FordInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Ford73-76F250 2WDN/A619022510 (1)3510 (1)6400 (4)
FordInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Ford77-79F250 2WDN/A619022520 (1)3520 (1)6400 (4)
FordInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Ford67-79F250 4WDN/A619022505 (1)3505 (1)6400 (4)
FordInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Ford80-98F250/F350 2WDN/A619032520 (1)3520 (1)6400 (4)
FordInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Ford80-86F250 4WDN/A619032505 (1)3505 (1)6400 (4)
FordInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Ford87-97F250/F350 4WDN/A619032520 (1)3520 (1)6400 (4)
FordInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Ford99-04F250/F350 Super Duty 2WD Single Rear WheelN/A61904 (1)2520 (1)3520 (1)6107 (2)
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Fordw/ 2-4" Rear Lift6400 (4)
Fordw/ 6" Rear Lift6406 (4)
Ford99-04F250/F350 Super Duty 4WD Single Rear WheelN/A61904 (1)2520 (1)3520 (1)6106 (2)
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Fordw/ 2-4" Rear Lift6400 (4)
Fordw/ 6" Rear Lift6406 (4)
Ford05-07F250/F350 Super Duty 2WD Single Rear WheelN/A61904 (1)2520 (1)3520 (1)6107 (2)
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Fordw/ 2-4" Rear Lift6400 (4)
Fordw/ 6" Rear Lift6406 (4)
Ford05-07F250/F350 Super Duty 4WD Single Rear WheelN/A61904 (1)2520 (1)3520 (1)6106 (2)
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Fordw/ 2-4" Rear Lift6400 (4)
Fordw/ 6" Rear Lift6406 (4)
Ford05-07F250/F350 Super Duty 2WD Single Rear WheelN/A61904 (1)2514 (3)3514 (3)6107 (2)
Fordw/ Factory Contact OverloadInstall Kit (Load Pro Only)3" Wide Springs2533425334
Fordw/ 2-4" Rear Lift6400 (4)
Fordw/ 6" Rear Lift6406 (4)
Ford05-07F250/F350 Super Duty 4WD Single Rear WheelN/A61904 (1)2514 (3)3514 (3)6106 (2)
Fordw/ Factory Contact OverloadInstall Kit (Load Pro Only)3" Wide Springs2533425334
Fordw/ 2-4" Rear Lift6400 (4)
Fordw/ 6" Rear Lift6406 (4)
Ford08-10F250/F350 Super Duty 2WD Single Rear WheelN/A61901 (1)2527 (1)3527 (1)6107 (2)
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Fordw/ 2-4" Rear Lift6400 (4)
Fordw/ 6" Rear Lift6406 (4)
Ford08-10F250/F350 Super Duty 4WD Single Rear WheelN/A61901 (1)2527 (1)3527 (1)6106 (2)
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Fordw/ 2-4" Rear Lift6400 (4)
Fordw/ 6" Rear Lift6406 (4)
Ford99-07F250/F350 Super Duty 2WD/4WD DuallyN/A61904 (1)2520 (1)3520 (1)N/A
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Ford08-10F250/F350 Super Duty 2WD/4WD DuallyN/A61901 (1)2527 (1)3527 (1)N/A
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Ford08-10F-450 DuallyN/AN/AN/AN/A6118
Ford67-96Bronco - Full Size991 (6)6190225103510N/A
FordInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Ford00-05Excursion (Special Design)1902N/AN/AN/AN/A
Ford75-10E150 Van991 (6)N/A25103510N/A
FordInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Ford75-98E250/E350 VanN/AN/A25103510N/A
FordInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
FordInstall Kit (Load Pro Only)3" Wide Springs2530025300
Ford99-10E250/E350 VanN/AN/A25103510N/A
FordInstall Kit (Load Pro Only)3" Wide Springs2533525335
Ford99-10E350 Super Duty Cutaway ChassisN/AN/A951095116102
FordInstall Kit (Load Pro Only)3" Wide Springs2533525335
Ford97-10E40/E-450 with 5 Leaf StackN/AN/AN/A9640 (7)6102
FordInstall Kit (Load Pro Only)
Ford97-10E40/E-450 with 11 Leaf StackN/AN/AN/A9645 (7)6102
FordInstall Kit (Load Pro Only)
Dodge70-93D100 2WD Pickup991 (6)61902250535056400 (4)
DodgeInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
DodgeInstall Kit (Load Pro Only)3" Wide Springs2530025300
Dodge70-93D200 2WD PickupN/A61902250535056400 (4)
DodgeInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
DodgeInstall Kit (Load Pro Only)3" Wide Springs2530025300
Dodge
Dodge70-93D300 2WD PickupN/A61902250535056400 (4)
DodgeInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
DodgeInstall Kit (Load Pro Only)3" Wide Springs2530025300
Dodge70-93W150 4WD Pickup991 (6)61902251035106400 (4)
DodgeInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
DodgeInstall Kit (Load Pro Only)3" Wide Springs2530025300
Dodge70-93W250 4WD PickupN/A61902251035106400 (4)
DodgeInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
DodgeInstall Kit (Load Pro Only)3" Wide Springs2530025300
Dodge94-02D&W 1500 Series 2WD,4WD Pickup 99461902252035206400 (4)
DodgeInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
DodgeInstall Kit (Load Pro Only)3" Wide Springs2530025300
Dodge94-02D&W 2500 Series 2WD,4WD Pickup (1)N/A619022520 (1)3520 (1)6400 (4)
DodgeInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
DodgeInstall Kit (Load Pro Only)3" Wide Springs2530025300
Dodge94-02D&W 3500 Series 2WD,4WD Pickup (1)N/A619022520 (1)3520 (1)6400 (4)
DodgeInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
DodgeInstall Kit (Load Pro Only)3" Wide Springs2530025300
Dodge03-081500 2WD Pickup982 (5)61901252735276210
DodgeInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
DodgeInstall Kit (Load Pro Only)3" Wide Springs2530025300
Dodge03-081500 4WD Pickup982 (5)61901252735276211
Dodge2-1/2" Wide Springs2525025250
Dodge3" Wide Springs2530025300
Dodge09-101500 2WD,4WD PickupN/AN/AN/AN/A
DodgePowerlift Rear Air Suspension ( Replaces Rear Coil Springs)6299
Dodge03-092500 2WD,4WD Pickup N/A619012527 (1)3527 (1)6216
DodgeInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
DodgeInstall Kit (Load Pro Only)3" Wide Springs2530025300
Dodgew/ 2" Rear Lift6224
Dodgew/ 4" Rear Lift6226
Dodge03-093500 2WD,4WD Pickup N/A619012527 (1)3527 (1)6216
DodgeInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
DodgeInstall Kit (Load Pro Only)3" Wide Springs2530025300
Dodgew/ 2" Rear Lift6224
Dodgew/ 4" Rear Lift6226
Dodge70-03B100, B150991 (6)N/A25103510N/A
DodgeInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
DodgeInstall Kit (Load Pro Only)3" Wide Springs2530025300
Dodge70-03B200,B300,B400991 (6)N/A25103510N/A
DodgeInstall Kit (Load Pro Only)2-1/2" Wide Springs2525025250
DodgeInstall Kit (Load Pro Only)3" Wide Springs2530025300
Dodge04-10Sprinter 2500 multi leaf application onlyN/AN/A25513551N/A
Dodge**Do not install on monoleaf spring**
DodgeInstall Kit (Load Pro Only)2535125351
Dodge04-10Sprinter 3500N/AN/A25513551N/A
DodgeInstall Kit (Load Pro Only)3" Wide Springs2535125351
Nissan04-09Titan988N/AN/AN/AN/A
Toyota00-06Tundra991 (6)N/AN/AN/AN/A
Toyota07-10Tundra985N/AN/AN/A6307
NOTES:*Progressive Rate Listed - Call for Constant Rate Applications
1)Must Remove Factory Overload Contact Springs
2)Can also use 6400 if not equipped with fifth wheel hitch
3)Installs in place of factory contact overload spring
4)Requires drilling
5)Step Bracket Style Leaf
6)Can also use 1801 for step bracket style leaf
7)Leaf & Mounting Kit Packaged Together

Download Instructions for this product

Notes:

*Progressive Rate Listed – Call for Constant Rate Applications

  1. Must Remove Factory Overload Contact Springs
  2. Can also use 6400 if not equipped with fifth wheel hitch
  3. Installs in place of factory contact overload spring
  4. Requires drilling
  5. Step Bracket Style Leaf
  6. Can also use 1801 for step bracket style leaf
  7. Leaf & Mounting Kit Packaged Together