The triangulation of the design forces the tire into the
ground when pressure is applied to the roller rather than just transferring
the load onto the conventional wheelie bar rollers and lifting the rear
wheels off the ground. The more pressure you apply to the roller the
harder it pushes down on the axle and tires.
The system allows 2 adjustment points to give a total of 4"
up and down.
Because the system applies pressure to the axle rather than
unload the axle only one wheel is needed and the car will stay straight and
stable.
The contact patch of the upper wheel needs to have a
reinforcement plate on the floor pan to handle the load. 3" by 10" 3/16
steel
The spring cushions the load and applies a smooth weight
transfer without violent slamming together of the components.
Measure the center to center of the rear springs
1. Set the car on the ground
2. Measure on a level plane 24"
back from the axle tube.
3. Measure from the floor pan to
the ground.
4. Mark the 24" point on the
floor pan and weld in a plate 3"x10" to carry the load of the
fulcrum or axis
wheel (fig 7)
If
you car is too short to get the plate at 28" call for instructions
Weld or bolt in plate as shown with the center at 24" from rear
of axle tube measured horizontally from rear face of axle tube.