run my first set in the 68 Dart for 9 yrs before one went out and started leaking oil with the inner seals.
got a 2nd set from DrDiff and been on them 4 yrs now in my truck.
plenty of turns,power slides,burnouts,off road trail ridding,daily driveing.
i dont run inner seals the 2nd go round and no leaks or trouble with mine.
it not that it is hard or to much time to adjust stock bearings,it is the fact that they no longer make the adjuster for the stock bearing.
i couldnt find a good one so the greens filled the spot and have held up fine for me with all types of abuse on that 8 3/4 in 2 different rides at 100 miles a day daily driveing.
i will stay with greens and even save the 12$ not running the inner seals.
as far as seals,it is 2x the protection with them but I had too many
when I shot that 12$ set of seals in with the BFH so it went together with out them
no leaks after 4 yrs so far