It looks like the axle and not the brake disc? The wobble showed up due to the snug fit of the brake disc? Good detective work. You found the issue and fixed it.
Steve, I just put rear Wilwoods on mine. There is a ring that slides on your axle and when you push the caliper on, it fits into the caliper making it snug. It should have come with your kit.
@@slickrickjones I thought that ring would be bigger than that. It doesn't seem to be enough to support wheel torque and prevent bending the rotors. I would think that if that is supposed to enable seating the rotor to the face of the axle it would be much larger in diameter. Additionally, since those rings are not supporting the back of the wheel where the lug nuts are, you'll never be able to fully tighten them. I actually like my solution better. My rotors now fit completely flat to the axle over the entire back of the rotor.
@@slickrickjones Looking at that kit closer, if you look at one of the reviewers photos you can see the rotor has a hole much larger than the axle hub so those are going to fit much better than mine. Mine have a hole exactly the same size as the axle hub which is why they hit that raised section on the hub that prevents them from laying flat.
Just ran into the same issue on my ‘72 Nova with the Right Stuff kit that has the wilwood calipers. Did you contact right stuff about this issue? Can’t believe after 2 years since this video that they’re still selling rear discs that do not fit onto stock 8.5 10 bolt 28 spline axles. Just wish I had seen your video sooner so I didn’t have to spend a half hour on each axle grinding the ridge off to make things work.
I've never heard of that, but I get the idea. It is very slight so not enough to feel it in the pedal. I know when I used to do brake jobs back in the day we trued up the rotors on a lathe and there was no thought of adding "run out".
@@stevesgarage7644 well, if I go diggin for some real specs, i'll let you know what i find...i'm trying to recall now where i got my "info", and don't recall...hmmm
You are correct! haha! I couldn't remember the name of it at the time. But in truth, it's still a "micro" - "meter" so I'm not totally wrong! :) And it doesn't actually have a "dial", so...
Good to see you figured out where the source of the wobble is coming from.
love your videos, i just recently bought a 72 nova and am currently restoring it. these video have helped me out a lot.
It looks like the axle and not the brake disc? The wobble showed up due to the snug fit of the brake disc? Good detective work. You found the issue and fixed it.
Good find and fix.
Steve, I just put rear Wilwoods on mine. There is a ring that slides on your axle and when you push the caliper on, it fits into the caliper making it snug. It should have come with your kit.
These are The Right Stuff, not Wilwood. I didn't get any rings with this kit unfortunately.
@@stevesgarage7644 I just noticed that. I’ll post the link showing the slide on ring with the Wilwood. Crazy that brand didn’t come with them.
@@stevesgarage7644 www.summitracing.com/parts/wil-140-11398-dr
@@slickrickjones I thought that ring would be bigger than that. It doesn't seem to be enough to support wheel torque and prevent bending the rotors. I would think that if that is supposed to enable seating the rotor to the face of the axle it would be much larger in diameter. Additionally, since those rings are not supporting the back of the wheel where the lug nuts are, you'll never be able to fully tighten them. I actually like my solution better. My rotors now fit completely flat to the axle over the entire back of the rotor.
@@slickrickjones Looking at that kit closer, if you look at one of the reviewers photos you can see the rotor has a hole much larger than the axle hub so those are going to fit much better than mine. Mine have a hole exactly the same size as the axle hub which is why they hit that raised section on the hub that prevents them from laying flat.
I did notice but didnt think much of it.
Just ran into the same issue on my ‘72 Nova with the Right Stuff kit that has the wilwood calipers. Did you contact right stuff about this issue? Can’t believe after 2 years since this video that they’re still selling rear discs that do not fit onto stock 8.5 10 bolt 28 spline axles. Just wish I had seen your video sooner so I didn’t have to spend a half hour on each axle grinding the ridge off to make things work.
Exactly. No I didn't contact them. Sorry you had to deal with the very same issue.
You had the rear wheels milled down as well right. I think you said an 1/8
Yes correct. At one point I thought it might be that but it turned out not to be.
What if you just put flat washers at base of studs so rotor cleared the ridge ?
It's an idea, but you run the risk that flat washers are not all the same precise thickness. Then you'll have wobble again.
Have you tried check the axle flange for runout?
Yes I tested that. 100% straight.
disc rotors have a bit of movement to push away the pads, not sure what amplitude and duration is..."run out" i think is the term
I've never heard of that, but I get the idea. It is very slight so not enough to feel it in the pedal. I know when I used to do brake jobs back in the day we trued up the rotors on a lathe and there was no thought of adding "run out".
@@stevesgarage7644 well, if I go diggin for some real specs, i'll let you know what i find...i'm trying to recall now where i got my "info", and don't recall...hmmm
that's a dial indicator.
You are correct! haha! I couldn't remember the name of it at the time. But in truth, it's still a "micro" - "meter" so I'm not totally wrong! :) And it doesn't actually have a "dial", so...