Went in and got an alignment and set the toe with my 35's at 1/8 of an inch. Then I checked my toe using a prexiso x2 ($80 Amazon) laser measuring device which is accurate to 1/8" over 100' and reads in 16ths of inch. I measured the front and rear of the tires (inside sidewall to inside sidewall) with the Prexiso and it measured 4' 07 1/16" (back) and 4' 06 15/16" (front) which is dead on 1/8" difference. From now on, I will be checking my toe with a laser.

 

imo way easier with a ruler. the laser (on my tire set up) varies way to much. you have to make sure the lasers level and there on the same tire bulge area and that your pointing dead straight. With mine i almost always get a different reading no matter how many areas i tried....Ruler ftw

 

I take three consecutive measurements on the sidewall (not near knobby) and they were all the same. But, you are right, you have to keep it steady.

 

itd work better on mine if i put a board across it but my laser has a half ass rounded bottom so its near impossible to shoot straight...

 

I use some custom made 1x2's and bungy cords to do my own alignments. Do it on the ground. There is a how to article in the Project JK section on how to do this. Check it out.

 

I use 2 short screws and a tape measure. 1 screw in a tread block of each tire. Run tape across front and back.... Done