if its for 4x4 's then you can just make a set of gauges. get a length of 1" flat bar and bend a hook onto one side so it can hook and hang onto the tyre(so like an upside down J shape). then cut and weld another length of the 1" to it that longer than the tyres diameter to make an upside down capital 'T' shape. make a second then hang them on your wheels and measure between them with a tape measure.
trouble with Dunlop gauges and modern cars is that the bumpers are that long and low they obscure the mirror. if you buy a secondhand set of gauges, test them to see if they are bent by setting them up face to face.
I had a simple device for locking the wheel in position. it was basically a length of 1" tube, then a piece of 1/4" plate about the size of my hand with a 1" hole drilled to on side that someone had filed oblong. stick the tube through the plate, push the brake pedal down with ya foot, then wedge the 'device' between the pedal and steering wheel, release the brake pedal and it jams up against the steering wheel.
these days I tend to just use two mega long spirit levels cable tied to the wheels so they protrude past the front of the car. then measure with a tape measure.
trouble with Dunlop gauges and modern cars is that the bumpers are that long and low they obscure the mirror. if you buy a secondhand set of gauges, test them to see if they are bent by setting them up face to face.
I had a simple device for locking the wheel in position. it was basically a length of 1" tube, then a piece of 1/4" plate about the size of my hand with a 1" hole drilled to on side that someone had filed oblong. stick the tube through the plate, push the brake pedal down with ya foot, then wedge the 'device' between the pedal and steering wheel, release the brake pedal and it jams up against the steering wheel.
these days I tend to just use two mega long spirit levels cable tied to the wheels so they protrude past the front of the car. then measure with a tape measure.