Installation Instructions

Step 1

Raise the vehicle on the chassis, allowing the rear axle to hang freely. If necessary, bend open or un-bolt an spring retainers on top of the existing spring that will prohibit the installation of the Load Hog Helper Springs (the U-bolts fitted later will replace their function). In most cases it will not be necessary to remove the road wheels.

Loadhog Helper Springs are designed to work WITH good leaf springs and NOT as a replacement for fatigued leaf springs.


Step 2  

Place the Load Hog blade on top of the rear half of the existing leaf spring with the L-shaped end butting up against the axle assembly. Ensure brake lines are unobstructed.

Step 3

Place a Cross Plate on top of the Load Hog blade ensuring it butts up against the L-shaped end. Push the shorter U-bolt through the Cross Plate, securing it in position with the nuts and washers supplied. Tighten to 40Nm and lock with a second nut.

Cross plates with off-centred holes are to be fitted with the wider sections facing the axle. If it is not possible to fit the Load Hog blade against the axle assembly, move it back by up to 30mm.

Step 4A

Push the longer U-bolts up through the plate on the rear end of the Load Hog blade, fit washers and finger tighten the nuts. Tighten the nuts a further 10mm (light load) to 40mm (heavy load/higher lift) and lock with a second nut. Repeat steps 1 to 4 on other side.

A minimum clearance of 30mm must be left between the Load Hog blade and the top of the existing leaf spring.

Step 4B

An Invertor Plate is supplied in some kits which allows the rear longer U-bolt to be fitted downwards through the Load Hog blade and into the Invertor Plate underneath the existing leaf spring. Adjust and lock as in Step 4A.


Step 5

Lower the vehicle to the floor and re-check tightness of the shorter U-bolts, ensure brake pipes and handbrake cables are completely unobstructed. Further adjustment to the rear longer U-bolts can be carried out at any stage.


Caution: Read before installing

  • Never load your vehicle beyond the manufacturer's specifications
  • Re-check tightness of Load Hog Helper Spring's nuts every 10,000 km
  • When working on a vehicle, adhere to safety standards set by the vehicle manufacturer
  • Do not install Load Hog onto mono fiberglass/composite springs
  • This is only a guide. Vehicle manufacturers change specs without notice.
  • Warranted for defects in material and manufacturer's workmanship the life of the original installation.