You measure out to the end of each carpenter square to see how much toe in or toe out you have on the front side of the tires and again on the back side so you can see exactly you have scope
If you have 55.6 on the front side and 55.5 inches on the back side you have a little less than 1/8 inch toe out scope
I like to see between 1/32 to 3/32 of a inch toe in on my drag race cars with the front end raised up around a inch like it will be at WOT on the top end, but no toe out tsk twocents
I was taught to not measure between the tires for toe in or toe out due to the tires having bulges on them shruggy

Last edited by Cab_Burge; 02/21/19 12:41 AM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)