D1/D2 u-joints?

[lowwill]

U-joints questions been beat to crap on these forums. Which ones are more likely to give out. Sealed D2 or Greasable D1? Silly questions but Im just curious.

 

[joey]

D2 will give out usually in less than 40k miles... it over heats from the Cats and the grease melts.

 

[lowwill]

just wondering cause I see so many treads about them on these forums