ello bros,my prop shaft (long shaft) rear U joint needs replacement.i'm on my 3rd u joint already and it seems that they don't last.i'm pretty sure this is due to the machinist who isn't really an expert in the method of repalcement.has anyone experienced a U joint replacment b4 or perhaps have a comlpete set of longshaft available and hidden somewhere for sale....? oh and this will be for an e30m20 4 door manual......tks