Could someone tell me how many pinion shims they had to use with 5.13 gears. I've used all of the new ones plus the old ones and can't seem to get the pinion close enough to the ring gear. The pinion has 3.129 on the button and 188, 188 is also on the ring gear. The old pinion had the +3, .042 in shims. I've done it about 10 different ways now so any help or a big "your stupid" will help.