75hyrst

Hi, I'm new here and have a question.

I'd like to install new rotors on my 75 hurst olds to fit a 5x5 bolt pattern.This would allow me to put wheels from a chevy truck that I have and like and finding wheels a little less difficult around here.
Rotors are cheap, around 34 bucks, but which model and year to ask for at the parts store is the question. I don't want to use adaptors because I intend to race the car and can't have any breakage.
Any help would be appreicated.

citcapp

Your not going to be able to find that conversion. Its not just the rotor, You would nave to change the hub as well plus other parts and the rear would not match the front you would have to change all of that as well. I suggest you look for another wheel you like.

J-(Chicago)

AC DELCO 18A3 rotor. Surely 1 of these cars had a 5x5 bolt pattern, and all use the same rotor blank. Worst case scenario, take your rotors to a machine shop and have them drill you a second set of stud holes.


BUICK APOLLO 1975
BUICK CENTURY (1973 - 1977)
BUICK CENTURY CUSTOM (1975 - 1977)
BUICK CENTURY LUXUS (1973 - 1974)
BUICK CENTURY SPECIAL (1975 - 1977)
BUICK ESTATE WAGON (1977 - 1978)
BUICK LESABRE (1977 - 1978)
BUICK LESABRE CUSTOM (1977 - 1978)
BUICK REGAL (1973 - 1977)
BUICK SKYLARK (1975 - 1978)
BUICK SKYLARK CUSTOM 1978
BUICK SKYLARK S (1976 - 1978)
BUICK SKYLARK SR (1975 - 1977)
CADILLAC SEVILLE 1976
CHEVROLET CAMARO (1970 - 1978)
CHEVROLET CAMARO LT (1976 - 1977)
CHEVROLET CAMARO Z28 1972
CHEVROLET CAPRICE 1978
CHEVROLET CAPRICE CLASSIC 1977
CHEVROLET CAPRICE ESTATE 1977
CHEVROLET CHEVELLE DELUXE 1973
CHEVROLET EL CAMINO (1973 - 1977)
CHEVROLET EL CAMINO CLASSIC 1977
CHEVROLET EL CAMINO CUSTOM (1973 - 1974)
CHEVROLET G10 SPORTVAN (1971 - 1974)
CHEVROLET G10 VAN (1971 - 1974)
CHEVROLET IMPALA (1977 - 1978)
CHEVROLET IMPALA CUSTOM 1977
CHEVROLET LAGUNA (1973 - 1976)
CHEVROLET LAGUNA ESTATE 1973
CHEVROLET MALIBU (1973 - 1977)
CHEVROLET MALIBU CLASSIC (1974 - 1977)
CHEVROLET MALIBU ESTATE (1973 - 1976)
CHEVROLET MONTE CARLO (1973 - 1977)
CHEVROLET NOVA (1975 - 1978)
CHEVROLET NOVA CONCOURS (1976 - 1977)
CHEVROLET NOVA CUSTOM (1975 - 1978)
GMC G15/G1500 VAN 1971
GMC G15/G1500 VAN RALLY (1971 - 1974)
GMC G15/G1500 VANDURA (1971 - 1974)
GMC SPRINT (1973 - 1977)
GMC SPRINT CUSTOM (1973 - 1977)
OLDSMOBILE 98 1977
OLDSMOBILE 98 REGENCY 1977
OLDSMOBILE CUSTOM CRUISER (1977 - 1978)
OLDSMOBILE CUTLASS (1973 - 1977)
OLDSMOBILE CUTLASS S (1973 - 1977)
OLDSMOBILE CUTLASS SALON (1975 - 1977)
OLDSMOBILE CUTLASS SUPREME (1973 - 1977)
OLDSMOBILE CUTLASS SUPREME BROUGHAM (1976 - 1977)
OLDSMOBILE CUTLASS SUPREME CRUISER (1974 - 1975)
OLDSMOBILE CUTLASS VISTA CRUISER 1978
OLDSMOBILE DELTA 88 (1977 - 1978)
OLDSMOBILE DELTA 88 ROYALE (1977 - 1978)
OLDSMOBILE OMEGA (1974 - 1978)
OLDSMOBILE OMEGA BROUGHAM (1976 - 1978)
OLDSMOBILE OMEGA F85 (1976 - 1977)
OLDSMOBILE OMEGA SALON 1975
OLDSMOBILE VISTA CRUISER (1973 - 1977)
PONTIAC BONNEVILLE (1977 - 1978)
PONTIAC BONNEVILLE BROUGHAM (1977 - 1978)
PONTIAC CATALINA (1977 - 1978)
PONTIAC CATALINA SAFARI (1977 - 1978)
PONTIAC FIREBIRD (1970 - 1978)
PONTIAC FIREBIRD ESPRIT (1970 - 1978)
PONTIAC FIREBIRD FORMULA (1970 - 1978)
PONTIAC FIREBIRD TRANS AM (1970 - 1978)
PONTIAC GRAND AM (1973 - 1975)
PONTIAC GRAND LEMANS (1975 - 1977)
PONTIAC GRAND LEMANS BR 1976
PONTIAC GRAND LEMANS LE (1976 - 1977)
PONTIAC GRAND LEMANS SAFARI (1975 - 1977)
PONTIAC GRAND PRIX (1973 - 1977)
PONTIAC GRAND PRIX LJ 1977
PONTIAC GRAND PRIX SJ 1977
PONTIAC GRAND SAFARI (1977 - 1978)
PONTIAC GTO 1973
PONTIAC LEMANS (1973 - 1977)
PONTIAC LEMANS SAFARI (1973 - 1977)
PONTIAC LEMANS SPORT (1973 - 1977)
PONTIAC LEMANS SPORT COUPE (1976 - 1977)
PONTIAC PHOENIX (1977 - 1978)
PONTIAC PHOENIX LJ 1978
PONTIAC VENTURA (1975 - 1977)
PONTIAC VENTURA CUSTOM 1975
PONTIAC VENTURA S 1975
PONTIAC VENTURA SJ (1975 - 1977)

The Stickman

Could he just use a set of B-Body spindles and hubs?

joe_padavano

The problem is that all of the 5 x 5" bolt circle rotors that I am aware of are 11.75" diameter, whereas the 5 x 4.75" rotors are 10.75" diameter. Since the caliper brackets are integral with the spindles on the1973-77 cars, you can't simply swap rotors.

More to the point, by the time you swap the front spindles, get new rotors, have the rear axles redrilled, and get new rear drums with the correct bolt circle, you've probably spent more money than simply getting the correct wheels. You don't specify where you are that 5 x 5 wheels are easier to find, but since EVERY Camaro ever made (well, except the 2010 model) used a 5 x 4.75" bolt circle, it is inconceivable to me that you have any problem finding wheels to fit.

75hyrst

Thank's for the input everyone. It was just a thought. I live just north of Lafayette La and have a buddy with a junk yard. He would give me one of many matching sets he has, but all the nice and wide ones he has right now are 5x5 bp. I'm going to ordering rear shafts for the diff anyway so that's what got me thinking about this.

55cheiftan

Check with your junkyard buddy and see if the rotors off of a 1995-1998 gm pickup 5 on 5 will fit those spindles with bearings and seals.

now the other part is check your lugs and studs, what I mean is that my 55 Pontiac has a different size stud than Chevy 5 on 5. Bigger on Pontiac, your Olds may be the same, you can get different studs and press it in.

so it is possible, checking is part of the fun of the hobby. Good luck

joe_padavano

Welcome. Note that you've responded to a thread that's been dead since 2009. I suspect he's solved the problem by now.

chitowngentqqq

same issue trying to find a 5x5 bolt pattern to fit the C3 corvette spindle and be max 11.93 in diameter. Corvette has a 11.75 btw. The c10 fits except length on spindle stud- the rotor is too long. I tried changing the inner race and bearing... no bueno.

why you doing this? The C3 spindle fits the 65-66 Cadillac DeVille- I have unilug rims now but if I want to

This is the c10 front 5x5. Too long for C3 shaft
go factory, I will need the 5x5 or use wheel adapters

joe_padavano

Wow, is this thread like cicadas? It seems to come back to life every six years or so.

I was going to suggest 71-76 Caprice, but those are the same P/N rotors as the C10. Your best bet may be to just have the C3 rotors redrilled.