Originally Posted by dcarr511
I just bolt a cap in with one bolt and swing it over the pinion to get my measurement. Never had a problem with it ....
Now that doesnt mean the cap is split in the dead center of the bore. Just something that has worked for me and others I know.
If you want to know where the center of the bore is just measure from the cap seat (bore split) to a metal ball placed in the bottom of the bore with a depth mike and add the ball size amount, divide in half.
Add to the numbers you got from dcarr511's method and there's your total.
Curtis