DEPENDING ON THE SIZE OF MOTOR MOUNT YOU USE, I ACTUALLY FOUND THAT A STANDARD WASHER MOVED THE ANGULAR OFFSET BY SOME NOMINAL NUMBER.

IN ENGLISH:

ONE WASHER = 1 DEGREES

THE APPLICATION WAS A O.S. 50SX ON AN LT40, STOCK ADJUSTA-MOUNT.

IT WASNT ONE DEGREE,MAYBE HALF OR QUARTER, BUT WITHOUT MY NOTES I DONT REMEMBER WHAT IT WAS, BUT YOU CAN DO SOME TRIGONOMETRY, AND IF YOU CANT, YOUR CAD SYSTEM WILL.