Garage Door Service Salt Lake UT A-1 Garage Door Repair 930 N Main St, Tooele, UT 84074 (435) 579-2944 https://a1garagedoorrepairutah.com/ Make use of a string line to verify both tracks are parallel and for the same peak. Measure diagonally between reverse track corners to verify they’re square with one https://docs.google.com/spreadsheets/d/1nrT3SmiewABzjI1-Juq9BJE6SP4-ehM7R-6IV_Z8GAk