5x5" bolt pattern front hub assembly?? - El Camino Central Forum : Chevrolet El Camino Forums
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Old 11-06-2019, 04:28 PM
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Default 5x5" bolt pattern front hub assembly??

So I went to go install a set of '86-88 Monte Carlo SS wheels to replace the one size fits all Cragars I had on there and got a nasty surprise of finding out that a previous owner installed a front hub assembly with B-body Caprice brakes and a 5x5" bolt pattern. What all would be needed to return to 5x4.75"? I know there's the obvious of new rotors but I'm hoping I can retain my larger than stock calipers?
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Old 11-07-2019, 03:35 PM
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not sure what the cheapest way to go is, but
you may be able to have the hub/rotor re-drilled..
.
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Old 11-07-2019, 07:33 PM
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what about locating a set of junkyard Blazer brakes and hub? that whole thing will swap right out and get you back to the bolt pattern
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Old 11-07-2019, 10:30 PM
85 IROC Camino 85 IROC Camino is offline
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If memory serves me correctly (it often fails me), I think the 1LE Camaro rotors fit those spindles and are 4 3/4 bolt pattern. Look into that swap info on line and I think I'm correct.

Best of luck !
Regards Brian
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Old 11-08-2019, 07:14 AM
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Thanks guys. I ordered a set of Oreilly's 11" rotors with a 5x4.75" pattern for a base 1990 Caprice that I should be getting in this afternoon. I got new bearings and seals for it yesterday that fit the spindle so here's hoping the rest goes together smoothly.
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Old 11-08-2019, 05:25 PM
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You will find that the studs on the Caprice rotors are a metric thread. I replaced them rather than dealing with 2 different size nuts.
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Old 11-09-2019, 08:54 AM
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82's have metric threads already, so that isn't an issue.
B=body spindle setups used to be a common swap. I think bumpsteer was one of the issues it caused.
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Old 11-11-2019, 08:11 AM
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Just figured I'd update this thread in the unlikely scenario anyone else has an issue. I was able to get a set of '90 Caprice (non police package) 11" front rotors all installed and adjusted with new wheel bearings onto my B body spindles just fine. As jlcustomz above mentioned, the wheel stud pitch was wrong. Since I have a GN 8.5 in the back already, I converted the fronts to the same thread pitch as what was on the rear already. Of course GN wheel studs don't fit into Caprice rotors with the knurl diameter they have so I had to get creative to spec out a properly sized set of studs. Just FYI, if you're looking to spec out a set of wheel studs to fit a custom application, either Dorman or Oreilly's websites are great for looking up studs by both thread pitch and knurl diameter.
She's all put together and running better than ever know but there's definitely a reason why my Elco's nickname is the blue money pit..
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Old 11-11-2019, 05:40 PM
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wtg and good info Kyle
x2 on the Dorman..
I went to 14mm dia. from 12 when I changed all mine,,
kinda like going from 7/16 to 1/2'' back in the olden days..
.
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Old 11-14-2019, 09:14 PM
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85 IROC Camino is correct. I am running the 1LE rotors on my 94 Roadmaster spindles









Quote:
Originally Posted by 85 IROC Camino View Post
If memory serves me correctly (it often fails me), I think the 1LE Camaro rotors fit those spindles and are 4 3/4 bolt pattern. Look into that swap info on line and I think I'm correct.

Best of luck !
Regards Brian
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