I usually just change every thing for new as I'm going. But thought I'd ask the question as I'll go for a genuine LR part as I've heard so many horror stories about britpart
ive just fitted new swivels to both sides of mine,, both were a britpart kit, and had no problems with them.. no leaks either.. so im happy, think the kit was 80 odd quid a side and included all bearings seals and gaskets,,
to my mind the jurys out regarding these horror stories.. and maybe a bit of it is more down to the person fitting it. its all too easie to blame the parts sometimes..