the best thing for them is a brg and seal kit. as long as the brgs and shim properly they will last forever. the problem gets to to much end play in the shafts and those end caps get a hole worn in them and it starts to leak and then the problems start. I do have some end caps and yokes for one.
brg kit for those are not expensive
if you pm me your email i have about 8 or 9 sheets of parts list and expanded pictures
ron
Last edited by padresag; 02/11/2018 3:45 AM. Reason: added material