DrDave--recall lots of info on drag link ends but don't recall any threads on track bars, but could be wrong--wont be the first time, or the last. During my research on drag links, seems like most of the problems were with the newer 52 degree wheel cut and the associated drag links with a greater bend/off-set center of balance. Pretty sure my older 48 degree cut has a different drag link. Did manage to find some Volvo truck link ends but decided on using some generic grease boot replacements--boots were cheap, rod-end joints seemed to be mechanically sound--I keep the boots full of grease, no apparent issues since.....
2003 40' MDTS
Garden Ridge, Texas