[Dave in MN]

[QUOTE=aermotor;1900756]If you are getting a difference in toe in - left to right the car must be on the ground or floor. The correct procedure to check/adjust toe in will not allow a difference from one side to the other due the to the mechanics of the steering system - the wheels need to be off the floor.

John[/QUOTE

John, The instructions I have with my Ideal Wheel Aligning Gauge by Wheel-A-Matic Corp, instructs to have the weight of the car on the wheels.

Cut from the instructions.
WA0361 & WA0374 Toe Measuring Gauge Instructions
TO ASSEMBLE: – The RED screw, 2 1/2 inches from the scale is for packing only. When removing it hold some pressure on the end of the gauge to prevent the spring from snapping out. No tools are required for this.
Depress push button and insert tube into larger one. Holes are used to adjust for different width vehicle. The additional button and set of holes are for wide vehicles.

TO USE: – Pull vehicle forward at least 3 feet before placing gauge in position. Press out on front of wheels to take up play. Set the gauge in position between the tires at the front of wheels, with ends bearing on tires. Chains must just touch floor. Spring pressure will hold gauge in position on tires. Set movable scale so pointer is at Zero.
Leaving gauge between wheels, move vehicle forward until gauge comes into position at back of wheels with chains just touching floor. Pointer will then show amount of Toe-in.
To clean sliding tube, remove by taking out screw.


Good Day!