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I pulled my chrome trim rings off and found numbers on my wheels. Does anyone know how to decode them?
I had two different codes.
(1) M5 3 24 KX
(3) M5 8 45 KM
Last edited by HaroldB; 04/05/13 04:00 PM.
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Wheel codes are the two digits on the outside of the rim next to the valve stem hole.
Should be JA or JC for '68. (one for drum, one for disc, but I don't remember which goes which way right now)
I used to be indecisive. Now I'm not sure. I feel like I am diagonally parked in a parallel universe. 1968 400 convertible (Scarlet) 1976 T/A - 455 LE (No Burt) 1976 T/A New baby, starting full restoration. 1968 350 - 4 speed 'vert - 400 clone (the Beast!) 1968 350 convertible - Wife's car now- 400 clone (Aleutian Blue) (Blue Angel) 2008 Durango - DD 2008 GXP - New one from NH is AWESOME! 2017 Durango Citadel - Modern is nice! HEMI is amazing! 1998 Silverado Z71 - Father-daughter project 1968 400 coupe - R/A clone (Blue Pearl) (sold) 1967 326 convertible - Sold  1980 T/A SE Bandit - Sold
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my four wheel drums are all JCs.
 400HO vert, 3 speed, 8-track, deluxe parchment/flambeau burgandy
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1968 Firebird 400 4 Speed
68FB400
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Yep either JAs or JCs or at least that is the way for 1967s. I have heard JCs were used for all 1968s but haven't been able to verify.
Larry
1967 Sprint Convertible
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I looked last night the two wheels I just refinished.
YOU MIGHT BE LOOKING AT THE WRONG CODES. Those look like later wheel codes next to the valve stem opening. The ones I have in that location are "HP" which is a Honeycomb wheel code.
The codes for your wheels may be stamped on the inside of the wheel on the backside of the front face. It is after the size of the wheel in inches. Mine say "15 x 7 JJ" which is a proper code for 15 x 7 rims with a 4.75 inch bolt pattern.
2012 Mustang Boss 302 #1918, Competition Orange. FGF replacement
2006 Mustang V6 Pony, Vista Blue. Factory ordered.
2019 BMW X3 (Titled to the wife, but I'm always driving it for her. So I'm claiming it)
Old projects, gone but not forgotten:
1967 FB 400, original CA car. After 22 years of work, trashed by the guy who was supposed to paint it. I had to sell it.
1980 Turbo Trans Am
1970 Mustang fastback, 351C 4Bbl, auto
1988 Mustang GT, 5 speed
1983 F-150 4x4, built 302
1994 Chevy K2500 HD 4x4, 454 TBI
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Well some more information on my four wheels.
(1) M5 3 24 KX
(3) M5 8 45 KM
I thought I may at least use these for a while till I ran across some correct JC wheels however I have found out the 68 trim ring does not fit correctly with these wheels. The rim off sets are different and the inside trim ring edge does not set flush with the rim. It is about 1/2 - 1" off and looks terrible
I ended up having to find a set of JC wheels because these won't work.
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I got the rally II JC wheels in the mail today. The paint and color turned out pretty correct I thought. Here are some images: http://www.firebird400ho.com/?p=1282
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Harold,
Your wheels turn out awesome!
I have 2 sets of rims. My JC's don't seem to have any other coding on them by the valve stem. Any idea why?
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Early 68 to about mid year only JC by the valve steam and the date is inside the rim where the tire seats. You can see that in some of my pics. Later 68 and 69 the date is next to the valve stem. Here is a good article. http://www.wallaceracing.com/rally-wheel-date-code.htm
Last edited by HaroldB; 02/19/14 01:44 AM.
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My 68 , build date Nov 67 came with Disc front drum rear and JC wheels
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PS: anyone have info on these codes unfortunately this is all that I found under passenger seat. surprised it lasted that long being in the damp ole UK for 35yrs
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HaroldB I just bought a set of rally II JC and on the inside of the rim is a D with a 1 or a 7 stamped inside the D no other date codes or anything do I have to take the tires off the find date codes
Thanks in advance,
Chris.H
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Harold sold his '68 Firebird and I don't know if and how often he checks back here. This may help you: http://www.wallaceracing.com/rally-wheel-date-code.htm
Jim
'68 400HO Conv.
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Thanks Jimc2002.
cant find anything about the D with 1 or 7 stamped in it and don't want to take tires off just yet . Wallace says the dates and other stampings are on the inside wondering if the inside means back of wheel or under the tire or they were made in late 67 and had no other stamping . I just hope I didn't pay good money for reproduction wheels..
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99% sure they are under the tire, if that is what you are asking.
Larry
1967 Sprint Convertible
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My sept. 67 build 68 JC ralleys had the dates under the tire. There was a switch from them being on the outside surface of the rim to under the tire but I can't remember the cutoff dates.
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That sounds right. I seem to remember the later JCs had smaller text size and additional markings. The 67 and 68 varieties had a simple larger text JC near the valve stem.
Larry
1967 Sprint Convertible
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Thanks for the reply they do have a large JC stamp i will have to wait till i take tires off
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