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[C2] Wrong front rotor

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Old Sep 18, 2025 | 09:00 PM
  #21  
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Thank you all for clearing that up.
I suspect Bubba just used whatever to get it rolling again and on inspection, with rally wheels, it cleared ok and I didn’t notice any issues.
I will order a pair of rotors and try and find a hub.
Thanks for the links above.
Yes, shipping anything here sucks, but unavoidable.
One last question, as I won’t be riveting the rotors to the hubs, so will a 63-64 hub work ?
Or will a 69-82 hub work with a 67 spindle, with larger bearings ?
Thanks again Gents, very helpful info.

Last edited by anyChevy; Sep 18, 2025 at 09:37 PM.
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Old Sep 18, 2025 | 10:27 PM
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Originally Posted by anyChevy
One last question, as I won’t be riveting the rotors to the hubs, so will a 63-64 hub work ?
Or will a 69-82 hub work with a 67 spindle, with larger bearings ?
I'm pretty sure 63-68 hubs are the same, except that 63-64's do not have the 5 extra holes to rivet the rotor too. The same inner and outer bearings are used in the 63-64 and 65-68 hubs. I'd have to get into my parts books to be sure, but I thought the 63-64 hubs might have been the same as some or all 58-64 full size Chevy hubs? I'll try to check on this tomorrow.

Because of the bearing size you need to use 69-82 spindles with 69-82 hubs. While 63-64 spindles take the same bearings and hubs as the 65-68's, you can't use 63-64 spindles on 65-68 Corvettes because they're designed to use with a drum brake and have no provision to except the 65-82 caliper mounting brackets.
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Old Sep 18, 2025 | 10:57 PM
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Originally Posted by gbvette62
I'm pretty sure 63-68 hubs are the same, except that 63-64's do not have the 5 extra holes to rivet the rotor too. The same inner and outer bearings are used in the 63-64 and 65-68 hubs. I'd have to get into my parts books to be sure, but I thought the 63-64 hubs might have been the same as some or all 58-64 full size Chevy hubs? I'll try to check on this tomorrow.

Because of the bearing size you need to use 69-82 spindles with 69-82 hubs. While 63-64 spindles take the same bearings and hubs as the 65-68's, you can't use 63-64 spindles on 65-68 Corvettes because they're designed to use with a drum brake and have no provision to except the 65-82 caliper mounting brackets.
If full size cars use the same hub, I can probably find one locally and save a ton of money.
That would be great if you could check on that.
Thanks 🙏
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Old Sep 18, 2025 | 11:20 PM
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Originally Posted by gbvette62
I'm pretty sure 63-68 hubs are the same, except that 63-64's do not have the 5 extra holes to rivet the rotor too. The same inner and outer bearings are used in the 63-64 and 65-68 hubs. I'd have to get into my parts books to be sure, but I thought the 63-64 hubs might have been the same as some or all 58-64 full size Chevy hubs? I'll try to check on this tomorrow.
I knew I had a 1933-1962 full line Chevrolet Parts Book and a number of Corvette Parts Books of varying vintages at the house, but I didn't realize I also had a Chevy full line book from the 70's here too, so I got an answer to this quicker than I thought I could.

According to my various Parts Books the 63-64 Corvette front is also the same part as all 61-66 full size Chevrolet's, 67-68 full size Chevrolet's with standard drum brakes and 61-65 Corvair Rampsides and Greenbriers (the Corvair pickups and vans). As I said above, the difference between this hub and the 65-68 Corvette hub is this one doesn't have the 5 rivet holes. The part number for the Corvette/full size/Corvair hub is 3812712. I don't have any parts books for other GM models, but this hub might have been used on 60's full size Pontiacs too.

Looking at the Corvette Parts Book, the 65-68 Corvette hub was never sold as a separate part, it was only ever offered as a complete assembly of the hub and rotor. The last part number assigned to the complete 65-68 assembly was 3998278. As near as I can tell this hub assembly was a Corvette only part.
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Old Sep 18, 2025 | 11:30 PM
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Originally Posted by gbvette62
According to my various Parts Books the 63-64 Corvette front is also the same part as all 61-66 full size Chevrolet's, 67-68 full size Chevrolet's with standard drum brakes and 61-65 Corvair Rampsides and Greenbriers (the Corvair pickups and vans). As I said above, the difference between this hub and the 65-68 Corvette hub is this one doesn't have the 5 rivet holes. The part number for the Corvette/full size/Corvair hub is 3812712. I don't have any parts books for other GM models, but this hub might have been used on 60's full size Pontiacs too.

Looking at the Corvette Parts Book, the 65-68 Corvette hub was never sold as a separate part, it was only ever offered as a complete assembly of the hub and rotor. The last part number assigned to the complete 65-68 assembly was 3998278. As near as I can tell this hub assembly was a Corvette only part.
Excellent info, thank you very much for the quick reply.
I can probably find one relatively cheap and try it first, worth a shot anyway.
Thanks again
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Old Sep 19, 2025 | 01:58 AM
  #26  
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Think I found one, I can’t find my verniers, but it’s supposedly off a 65.
Add says “small journal” so I’m guessing he means small diameter spindle, or pre 69 ?



Last edited by anyChevy; Sep 19, 2025 at 06:45 AM.
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Old Sep 19, 2025 | 10:47 AM
  #27  
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Originally Posted by gbvette62
According to my various Parts Books the 63-64 Corvette front is also the same part as all 61-66 full size Chevrolet's, 67-68 full size Chevrolet's with standard drum brakes and 61-65 Corvair Rampsides and Greenbriers (the Corvair pickups and vans). As I said above, the difference between this hub and the 65-68 Corvette hub is this one doesn't have the 5 rivet holes. The part number for the Corvette/full size/Corvair hub is 3812712. I don't have any parts books for other GM models, but this hub might have been used on 60's full size Pontiacs too.
Using the GM Partswiki, that number only seems to apply to Chevrolet. Not to say this is definitive proof, but the wiki usually returns Buick and Pontiac in broad searches.
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