So I used Moog ball joints in the UCAs of my 65 FB because of their reputation.  Today, after only about 100 miles, one of the dust covers split.  I couldn't understand why until I bought a cheap one (O'Reiley Master Pro for $9.00) for the dust cover.  I noticed that the tapered stud was a little thicker than the Moog one, and sure enough, it doesn't go into the spindle as far.  In fact, it sticks out about 1" versus the Moog's 3/4", as the following photos show (note the dust covers are off).  My working theory is that because the Moog goes in the spindle further, it smashes the dust cover more and causes the split.  I'd appreciate any observations.  So instead of using the Master Pro's dust cover on the Moog, I'm thinking of just using the whole Master Pro ball joint.  It has a grease fitting and very similar to the Moog, the only obvious difference being that the Moog has a thick stamped housing versus a cast one for the Master Pro.  Any thoughts on that?




BTW, for those who haven't tried to remove ball joints without  removing the shock and spring, you might try this.  It's a block of wood with an angled bottom and a tab cut into the top to fit under the spring perch:
 

Last edited by jkordzi (1/06/2019 5:59 PM)