How is cross bearing measured? What do we need to know? The cap diameter and the span. Also is there a grease nipple and where is it situated?

 

The most accurate way to obtain the span spec is to remove the cross kit from the yokes. You can get an “estimate” by measuring across the yoke ears and allowing for the indentation of the bearing cap, but to get the most accurate number, the end-of-cap to end-of-cap measure- ment of a removed u-joint is best, this is for outside locks. Inner lock type joints (so when the grooves are in the caps) the span is measured from the outer side of the lock grooves.