juddering

Ayup, I've just parabolics and new dampers to my swb petrol series 3
Everything seems ok with it, but just had a small run round the block and it's ok when accelerating and coasting but when i brake there's a juddering that i can't quite figure out where it's coming from.
Is it likely to be a brake prob or something to do with the new springs etc?

Haynes says
brakes drums worn , scored or excessively out of round
worn linings
brake anchor plate insecure
wear in steering and or suspension components and linkages

might be just the springs and fixings settling in a bit, if the brakes were ok before then still should be ok?

perhaps you could rule out the brakes by clamping off the rear brake flexi and then testing if juddering still there do same with front if still there its your springs

depends if the judder is in the peddol or though the body
if its peddol then i would say brakes them selfs so drum or something like that
if it though the hole body and wasnt there before te check that everything is tight in the suspension parts