Shudder When Braking

[nuclear_skyline]

Hi guys, like to throw a left baller at you.

I dotn have any brake shudder in the dry, the occasional squeal but thats because of the pads.

When its raining and i'm braking down from any speed say over 50, i get this real bad shudder from the front passenger side.

I'm stumped, any first things to check out? I have new tyres that have been balanced and an alignment done within the last 1000km and its hasnt helped much.

[NRV155]

Brake discs may need machining.

[nuclear_skyline]

NRV155Posted Today, 12:43 PM Brake discs may need machining.

Why would the discs need machining if it only occured when wet? wouldnt it occur all the time?

[OFENSV]

its not the ABS kicking?

[nuclear_skyline]

i thought about that, but it only occurs on the left hand side and it occurs when i'm only lightly braking as well... slightly worried about it being the abs on its way out

[nuclear_skyline]

how would I be able to tell if the abs isnt working?

[raps86]

the easiest way that i know of cheching 2 c if the abs is working is if u know where a big open spot of grass or dirt is that u can travel at 30-40 then slam ur foot on the brakes if u feel the pedel pulsing under ur foot its working.