#1  
Old 02-28-2023, 01:02 PM
Pershing Pershing is offline
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Default Will all Rally I and II wheels fit over front disc brakes, 1967 GTO?

The title says it all. Will the original Rally I or II wheels fit over the calipers of the 1967 GTO disc brake equipped cars, or did GM make one set for disc and one set for drums. So these would be 14"x6". I know they made two sets of the standard painted wheel. But before I buy a set of the Rally wheels i want to make sure they will fit.

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Old 02-28-2023, 02:13 PM
'ol Pinion head 'ol Pinion head is offline
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the short answer is No.

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Old 02-28-2023, 02:21 PM
gto4ben gto4ben is offline
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On my 67 GTO with stock Rally I and four piston caliper, I get a 3/16" to 7/32" clearance between the inner wheel surface and the top of the four piston caliper.

My 67 LeMans with JC Rally II and single piston caliper, I have more clearance than that. I need my driveway to dry before I can get a measurement.

I used to have a 67 Tempest with the same JC Rally II wheels and four piston calipers. Clearance was not a problem.

With the four piston calipers, The rotor had to be a two piece version. Single piece rotors made for the single piston calipers would rub against the four piston caliper.
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Old 02-28-2023, 03:28 PM
'ol Pinion head 'ol Pinion head is offline
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As most of us know '67 & 68 GM factory disc brake cars had 4 piston calipers & caliper brackets. There are at least 2! if not 3, different pairs of original 4 piston Delco Morraine castings that will bolt to the '67-68 A/F body factory caliper brackets.

'67 & 68 Firebirds with factory 4 piston disc brake sets used a different casting caliper than A-body Can't soeak first hand for '67 Birds, but at least on '68 Birds, when the Rally II wheel option was clicked, the Firebird was assembled with the JC coded rally II's, whether drum or factory disc car.

Standard steel 14x6 wheels for '67 & 68 Pontiac A-bodies mirrored the above rally II usage. One 14x6 code on drum brake cars & HK's on 4 piston disc equip cars. For some reason, every inquiry I've had for HK coded 14x6's have all been for Firebird usage. Have owned over 400 '66-73 Pontiac A, F, GP partscars, projects, keepers, have boneyarded extensively, & have owned less than 3 sets of 14x6 HK coded disc steel wheels.

On factory 14x6 RallyI's, I was shown a set of nos Rally I's near 40 years ago by Phil Bauman (Classic GTO Newsletter) that he purported to be disc brake only Rally I wheels. Believe it was Dennis Kirban that said they were "mistamps". Have never had the occasion to fit an original Rally I wheel on a factory '67 or '68 4 piston disc car, am sure there are several here on the Forum that have that experience & if detail oriented enough, can better respond.

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  #5  
Old 02-28-2023, 07:05 PM
Pershing Pershing is offline
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man, this is complicated. but thanks for the info. My '67 GTO has the 4-piston calipers with standard black painted steel wheel stamped HB. They do not roll true so I am looking for alternatives in either the standard, Rally I or Rally II. So for the standard wheel I need HB or HK. For Rally I I, I will need JC. How about Rally I? Are there any other codes that will work for any of the wheels? Thanks!

  #6  
Old 02-28-2023, 07:26 PM
Goatracer1 Goatracer1 is offline
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Consider having a wheel shop true up your wheels. Cheaper than new wheels usually.

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Old 02-28-2023, 09:00 PM
gto4ben gto4ben is offline
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My Rally Is did not have any codes on the outside. Interior stamped codes don't correspond with usage, just wheel construction and date. Service Rally 1s were KA.

Just an FYI, I tried my Rally 1s on my daughter's '71 LeMans with single piston disc brakes. Lot's of clearance. I used her car to measure the wheel's lateral and radial trueness. You didn't quantify how bad your wheels are so I included the manual specs to help determine it.
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Old 03-01-2023, 01:53 PM
Pershing Pershing is offline
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More great info. I copied and printed the runout data and will take it back to one of the tire shops. I've taken my tires and wheels to several shops and have been unhappy with the results. They all say the wheels are out of round but gave be no detail; just said, that's the best they can do with these wheels. But I have made progress. After the first balancing with new tires they found it was two of the tires that were bad. those were replaced for free. Now I think I have good tires.

I'll also try again for a place that will true up the wheels. So far, no luck.

thanks again.

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Old 03-01-2023, 04:38 PM
gto4ben gto4ben is offline
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Here are the results of my runout measurements for comparison. On two of my spares, you'll notice that the stampings say K469 14x6 JJ etc. Two of my Rally I wheels had a 0.250" lateral runout and it was very obvious they had a wobble. I brought them to
Bolton's Classic Wheels, 16516 S Western Ave, Gardena, CA 90247
and they cut the hub out and welded a correctly sized used rim for $60 ea. I'm sure you can find a place to either perform a rim replacement or bend the wheel true if needed. Search for "wheel repair", "Can a Steel Wheel be Trued", "steel wheel true service", etc. in your area.
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  #10  
Old 03-06-2023, 01:05 PM
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squidtone squidtone is offline
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I have a '67 GTO with the factory disk brakes and every (factory) Rally I I've ever fit to the car had zero clearance issues with the calipers. The Rally I wheels I tried ranged from the early versions with no code to the later ones with the two letter KA stamp. I once also tried a re-pop 14 x 6 Rally I wheel and it too fit with no problems.


The only Rally II wheels (14 x 6) that I can confirm fit from my experience is the JC and JA code wheels.

Of the several code Rally II 14 x 6 wheels made after 1970 or 1971 that I've tired, none have fit and required 3/16" to 1/4" spacers.



I've never tried 15 inch Rally II wheels.
Hope this helps.

Good luck with getting your original steel wheels straightened. I had a set at first (when I bought my car) but I lost them!

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  #11  
Old 03-06-2023, 07:46 PM
Pershing Pershing is offline
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More great info. Thanks. I do hope I can find a place to straighten the original wheels in SE Michigan. that's the best and most cost effective solution.

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Old 03-11-2023, 04:43 PM
Red Box Rebel Red Box Rebel is offline
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My '68 with disc brakes has 14" Rallye IIs stamped JA. No clearance problems.

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Old 03-11-2023, 04:57 PM
Pershing Pershing is offline
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Quote:
Originally Posted by Red Box Rebel View Post
My '68 with disc brakes has 14" Rallye IIs stamped JA. No clearance problems.
More info that JA Rally II wheels will work. Thanks for checking.

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