How do you ID original GM rally rims? - Chevelle Tech
Wheels & Tires What fits what?

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post #1 of 8 (permalink) Old Jan 18th, 20, 8:45 PM Thread Starter
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How do you ID original GM rally rims?

I have a couple of 7x15 and a couple of 8x15 that I would like to identify look to be from the late 60's or early 70's?

Is there some kind of chart that if you know the size and the backspace or offset you can determine the code and the application?
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post #2 of 8 (permalink) Old Jan 18th, 20, 9:21 PM
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Re: How do you ID original GM rally rims?

Jim, look for a letter-number combo near the valve stem hole. Someone here knows how to read date codes for wheels. Terry
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post #3 of 8 (permalink) Old Jan 18th, 20, 10:25 PM
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Re: How do you ID original GM rally rims?

pretty sure the only code for the 8 inch will be a AZ. seems most of the 15x7 I find are FW. jim

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post #4 of 8 (permalink) Old Jan 19th, 20, 3:39 AM
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Re: How do you ID original GM rally rims?

https://www.stevesnovasite.com/threa...-codes.150428/
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post #5 of 8 (permalink) Old Jan 19th, 20, 4:29 AM
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Re: How do you ID original GM rally rims?

There is also a date code on the wheels which will help id them.

Code is on the rim by the valve stem hole as well as some of the information on the face or the wheel.
Format is:

K1y m (Valve Stem Hole) dd aa

where:
K = Kelsey-Hayes
1 = Romulus, MI wheel plant
y = calendar year
m = month
dd = day
aa = application code


When looking at original GM wheels, they will be stamped around the edges of the valve stem. This is good information to have, because it gives you the size / backspace / production date of the wheel. Below is a list of the available GM information;

XA 14X5 B-3 1/2 67 Chevy II with drum brakes
DA 14X5 B-3 7/8 67 Chevy II RALLY with disc brakes
DG 14X6 67 Camaro & Chevelle with disc brakes
XB 14X6 B-4 3/8 67 Chevelle SS, 68-69 Chevelle with F-70 Tires, 70 Chevelle
XN 14X6 B-3 3/4 68-69 Camaro & Nova with drum brakes. Different shaped outer
AE 14X6 B-4 3/8 70 Chevelle Station Wagon
XG 14X6 B-3 7/8 68-69 Camaro with disc brakes, 68-70 Chevy II/ Nova with disc brakes, 69-69 El Camino without disc brakes. Wider drop center than normal
DE 14X6 B-4 3/8 71-72 Nova & Chevelle, 6 hole wheels
YW 14X6 B-4 3/8 Exactly like XB, may have come on same cars
YJ 14X7 B-4 3/8 69 Camaro/ Chevy II L72- ZL1, 70 Nova
AV 14X7 70-72 Camaro, 71-72 Nova, 6 hole wheel
XT 14X7 L72- ZL1 Non Rally Wheel
YA 14X7 B-4 3/8 69 Chevelle SS Wheel
AO 14X7 B-4 3/8 70 Camaro &69 Chevelle SS Wheel
DB 15X5 67 Passenger Cars with disc brakes.
DF 15X6 B-4 1/16 67-68 Camaro Z28
DC (BIG) 15X6 B-3 1/2 67 Corvette, No other stampings on rim
DC 15X6 B-3 1/2 68-70 Passenger car, 67 Passenger car (early models)
FI 15X6 B-3 1/2 68-70 Passenger car, 67 Passenger car (later models) Riveted instead of welded together
YS 15X6 B-3 1/2 68-70 El Camino
FW 15X7 B-4 1/4 71-up most any GM
AG 15X7 B-3 3/4 68 Corvette (will take 15x8 Beauty rings)
YH 15X7 B-4 1/4 L72- ZL1 Z28 Rally 69 narrow drop center
AD 15X7 B-4 1/4 L72- ZL1 Z28 Rally 68 wide drop center
AV 15X7 70, 71, 73 Camaro Z28 5 spoke wheel
AZ 15X8 B-4 69-82 Corvette

Here are a few extra notes:
* All the rally wheels made in 1967 have big marking letters, no date code, a little bit different shaped center and slightly bigger holes in the center.
* The 15x7 beauty ring will go on all the 15x6 wheels.
* All the hubcaps interchange with each other.
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post #6 of 8 (permalink) Old Jan 19th, 20, 10:53 AM Thread Starter
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Re: How do you ID original GM rally rims?

Thanks Guys, Might there be some other stampings on the center section of the rim? I know that on my standard steel wheels on my 66 SS besides the A6 stamp, there was the GM65 stamp, some with NT or Norris Technologies, and some with a KH and I think some may have had the K19 etc stamp for Kelsey Hayes, plant 1 1969.


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post #7 of 8 (permalink) Old Jan 19th, 20, 1:43 PM
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Re: How do you ID original GM rally rims?

It looks like the 15x7 wheels on the front have the wide trim rings like the 15x8 wheels use. They would probably be the AG wheel use on 1968 Corvettes.
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post #8 of 8 (permalink) Old Jan 19th, 20, 3:54 PM Thread Starter
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Re: How do you ID original GM rally rims?

Quote:
Originally Posted by 25C 70 View Post
It looks like the 15x7 wheels on the front have the wide trim rings like the 15x8 wheels use. They would probably be the AG wheel use on 1968 Corvettes.
Well I got out the dremel tool and the Backs are 15x8 AZ code and the fronts are 15x7 FW code. Thanks everyone wo responded.


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