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I'm needing new drum rotors and when I took off the old drums everything was attached to the drum rotor.( wheel studs and hub assembly.) Is this the way they came from factory? When the guy at the parts store brought the new rotors it was missing the hub assembly.. Where can I get a new hub assembly for my front drum rotors?
You may need to get a used hub, I'm not aware of those being reproduced. Shouldn't be too expensive as most people don't need them after they swap on a front disc setup. I've got a couple parts cars with them on still but it would be next weekend at the earliest before I could pull one. I'd encourage you to create a parts wanted thread and hopefully someone nearby will have one at a reasonable price. If you strike out, send me a PM next Friday or Saturday and I'll get one for you.
I'm needing new drum rotors and when I took off the old drums everything was attached to the drum rotor.( wheel studs and hub assembly.) Is this the way they came from factory? When the guy at the parts store brought the new rotors it was missing the hub assembly.. Where can I get a new hub assembly for my front drum rotors?
Just so we're clear, this is a brake DRUM:
This is a brake ROTOR:
There's no such thing as a "drum rotor".
In your case, the hub and drum should be separate parts, held together with the pressed-in wheel studs. Press out the studs and the two should separate. Sometimes they will require "persuasion" to come apart due to rust.
Correct Joe.. I'm needing the Hub for the drum. Wasn't sure if someone reproduce those
I don't think the hubs are typically available because they don't really wear out. What's wrong with yours? The worst thing that happens is that one of the bearings goes bad, but you can replace the bearing races in the hub. If the lug holes are loose, you can either get studs with oversize knurls or you can tack weld the stud to the backside of the hub. I've done both successfully.
The original hub was attached to the drum by the studs. The name of the process slips by mind (splay, splunch, squench or something like that), but basically the lug was expanded against the drum by a special tool so it went on and off as one assembly, similar to the rotor assembly. An older mechanic in out AACA club has the tool, which most mechanics now days have never heard of this. Front drum cars haven't been made in a while. I had to remove the hubs from my old drums and then just slide the new drums over the studs to attach, just like you do with the rear drums.
You probably would have better luck buying the whole assembly. If the drums are no good, you can beat them off with a hammer, then slide new drums on. Lots of people have switched from drum to disk, so the parts are out there.
Weren't the 1970 and older drums two-piece,meaning they separated from the hub?
I think the 71-72 front drums are one-piece,with the hub being part of the drum.
I have both styles here,so whatever you need,let me know.
Yes I'm reviving an old thread here but it seems appropriate.
I'm working on a '69 Cutlass with drum brakes. Someone has replaced the drums and the studs. The drums now easily slide on and off the hubs. The knurling on the studs is a larger diameter than the holes in the brake drum. Someone put the drums on anyway and cranked the lug nuts down until it bent the drum around every stud hole.
One of the drums is damaged from an unrelated indecent and has to be replaced. Can I enlarge the stud holes in the drums to fit the knurling on the studs or ???
Last edited by Rocketguy; Aug 31, 2017 at 07:17 AM.
One of the drums is damaged from an unrelated indecent and has to be replaced. Can I enlarge the stud holes in the drums to fit the knurling on the studs or ???
What a moron!
Yes, the pilot hole in the center of the drum locates it, so you can enlarge the stud holes. Do not go too large, but you will be fine.
