blue44

hey I could use a hand chasing a persistent brake judder. thinking ( due to low speed steering wheel wander ) maybe a bent wheel or bent front stub axle, judder under moderate braking has survived pretty comprehensive brake re-build and then rotor re-surfacing. maybe wheel bearing ? how best to diagnose something like that ? thanks in advance... Donn

ps - 93 coupe has M030 sways, club sport front springs, lots of negative camber, stock brakes with pelican cool carbon pads, mostly road and occasional driver ed car...

FRporscheman

You can't know for certain if the wheels are bent until they're put on a balancer, so try that. But if it's only during braking I don't think it's a bent wheel.

It could be upper strut mounts. Or even control arm bushings but I'd start with looking at the strut mounts.

richard glickel.

Ft wheel bearing(s) possibly; also you need to check your hubs & spindels. On my car, there was a problem with the after market M030 hubs that was causing the ABS sensor to activate resulting in lots of "chatter". Took a while to diagnose too.

Good luck.

blue44

thanks, I have a dial indicator with magnetic base coming, hopefully it will help figure out which wheel to look at. Thinking I might pull the abs fuse and do some brake tests, too... Donn