Guys, Just finished the 40 juice brakes swap on my 29 roadster and after a day of chasing leaks it's dialed in until I took it for a cruise. My rear wheels were wobbling like nothing else. I pulled the drums and ground a bit more off the backing plates where I had a minor rub and nothing helped. I did the upside down and cut 1/8"off the backing plate and drum trick. Now it looks to be maybe warped hubs. Original rebuilt hubs. Guessing the shop that pressed in my studs did it...I guess my question is, is there any acceptable wobble in the trueness of the hubs? I hate to drop 400 on new hubs. Could it be anything else? Axle nut is torqued and new bearings and seals. Thanks! I'd post a video if I could but here is the car.
Are you using the wire wheel adapter rings? https://www.earlyfordstore.com/products/hydraulic-brakes-wire-wheel-adapter-rings-set-of-4
I sure am. I ran the car in gear with drums off and there's a fairly noticeable wobble at the hub. Wish I could post the video
My feeler gauges are at work unfortunately but the difference is enough to fit the tip of a flathead in...I think I know the answer to this one unfortunately
There's a fairly noticeable wobble at the hub, was written. That is not good at all. There needs to be NO wobble at all!
If they pressed out the original studs without cutting the swedge off first, then there is a very good chance they bent the hub. I did it to a front years ago before I knew any better. I would also make sure the keys are in proper and not holding things up
I would certainly try that, but keep in mind that all the material you take off will move the drum closer to the backing plate. So, eventually the shoes would be dragging on the vertical portion of the drum.
All good points and thank you. After checking it more right now there is also an up and down movement on the snout of the hub so I'm at a loss now. With no hub on it the bare axle runs nice and straight so that's not bent. Could it be a worn axle and not seating properly?
If there is up and down movement with the drum in place, there may be wear in the axle housing bearing surface. The housing wears on the bottom, where the weight is on the bearing. Don't overlook the possibility that there may be two (or more) faults all contributing to the problem..
Try snugging the hub to the axle with no key in case you just had the key in wrong. I did a whole pile of hubs a year ago prepping some Buick drum combos. I had my local machine shop skim the mating surfaces of the hubs to true them. They did it on a brake lathe, quite easily.
I pulled both off and got them on a flat surface for measuring. One was as bad as 1/8" of runout on the mating surface. I bit the bullet and ordered new ones but plan on getting these to the machine shop and making them right and using them on my 31 coupe down the road. I'm not normally one to just buy new stuff but it's that time of year and I have 2 shows and 2 parades with the kids next weekend and don't have the time to fix it all. I'll be sure to let you know what happens when I put the new ones on and if that solved the problem. Thanks so much for all of the suggestions!
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