|
Now look at (pic129a) that flat is where the bearing cap bolts to, that is the center line which is the center of the ring gear and the axles this where the pinion setting depth measured from(remember that number 2.5489” that was etched on the pinion face)
Now I made a plate from a pice of scrap metal that measured .260” thick. I drilled holes in varies places and two 1/2inch holes at one end and then bolt it to the case (pic 130) Now get the dial caliper and position it with the depth measuring side on the plate (pic130a) now slide the caliper open with the depth rod going though the hole on the plate (pic131) keep sliding it till the depth rod touches the pinion face while at the same time making sure the caliper body is firmly against the plate. Now look at the dial face take the measurement (pic132) I got 2.813” now I did that five times to get an average cause I would get 2.810” then 2.814” then 2.812” then 2.813” then 2.815” =14.064/5= 2.8128” so I rounded it off to 2.813. now subtract the plate thickness of .260” from the 2.813” which is 2.553” my target depth is 2.549 with the .030” shim I ended up with a pinion depth of 2.553” well with in the .010” tolerance which is 2.4589 plus or minus .010 which means as long as I was in between 2.539 and 2.559 I am good to go.
|