Outer CV Joint, Checking: Disassembling
-- Mark position of ball hub to ball cage and to housing before disassembling, using electro-writer or grindstone.
-- Swing ball hub and ball cage.
-- Remove balls in sequence.
-- Turn cage, until two rectangular windows -arrow- contact joint body.
-- Lift out cage with hub.
-- Swing hub segment with smaller pins into rectangular window on cage.
-- Fold hub out from cage.
Checking
The balls of each joint belong to one tolerance group. Check stub axle, hub, cage and balls for small depressions (pitting build-up) and chafing. Excessive circumferential backlash in joint makes itself noticed via tip-in shock, in such cases joint should be replaced. Flattening and running marks of balls are no reason to replace joint.