Hey i got mk2 2007 focus with knocking coming from both sides  on front sounds coming from i think where inner cv joint enter transmission its mostly over bumps it dosent happen when turning  ive replaced sway bar bushings drop links tie rod ends there is a clunk in drive shaft when u grab it pull in an out on it got bit leakage from driveshaft seal any ideas  

Sounds like the diff bearings might be worn.  If the shaft seals have been leaking for a while and the box is low on oil that could explain it.

Definitely worth checking that it's not just the shafts themselves at fault though.

Hey tom ive changed the drive shafts with second hand ones but am thinking knocking worse mayb they bad too if u starting from stop let out clutch quickly u can hear small clunk 

Second hand is always a bit of a gamble.  Have you checked the lower gearbox mount (torque restrictor) isn't worn and slack?  

Replaced it too no difference thts why this has got under my skin everything seems tight this clunk is loudover bumps r on bad road motorways good roads its fine