Hope this helps, Max, but reading the description of what the mechanic did,
did you have a brake wheel cylinder or axle seal leaking? If so, even though
he cleaned everything out, if the brake shoes got soaked with brake fluid or
grease, they'll still shudder and grab when braking.
I went thru this same scenario on my old Dodge truck, I replaced the bad
wheel cylinder, but even though I cleaned the shoes with brakleen, plus
scuffed them with sandpaper, before long, the shoes would get hot and glaze
again. Then the shudder or jerking when braking will return.
This was on an old beater truck, but would be intolerable on an Imperial.
I expect your brake shoes have became contaminated, either with brake fluid,
or possibly, rear end grease. If either thing has occured, best to repair
whatever is leaking and get new brake shoes. Turning the drum won't help,
it's not caused by an out of round condition.
> i'll be happy to describe it. and thanks for the thought. i'm not sure
> what it is.
>
> it happens when i'm applying the brakes at any speed. it was worse before
> the rear hubs were changed out.
>
> i'm no mechanic, but i have a pretty good one that's done the restoration
of
> my '62. he started with the brakes. apparently, it didn't look like the
> rear hubs had ever been removed. they were a bear to get off. my
mechanic
> had a special tool built to remove the hubs, got in there and learned that
> it was pretty much a mess. he did what he could to clean and service it,
> but after everything was put back together, the car had a terrible
"shudder"
> and increasing "vibration" when the brakes were applied. my mechanic
> swapped out the "like new" hubs from my parts imperial, and that helped a
> lot.
>
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