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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | Joined: Mar 2010 Posts: 35 Apprentice | | Apprentice Joined: Mar 2010 Posts: 35 | I have this '62 C10 that has 6 lug rims on it and I am looking to update the rims to a more modern pair, but I don't know what the bolt pattern is. Can any of you tell me off the top of your hear what bolt pattern these early 6 lugs are? Thanks! | | | | | Joined: Jun 2009 Posts: 2,201 Shop Shark | | Shop Shark Joined: Jun 2009 Posts: 2,201 | Same all the way up into the late 80's Chevrolet 4x4. The Rally GM wheels look nice on older trucks. | | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | 6x5.5". As mentioned, it is the same on 4x4 1/2 tons up to '87. Actually, the bolt pattern is the same up to '10, with 2wds going back to it in '99, but the '88-'10 trucks use a different backspace and offset, the wheels do not interchange after '87.
Bill Burmeister
| | | | | Joined: Dec 2006 Posts: 1,464 Shop Shark | | Shop Shark Joined: Dec 2006 Posts: 1,464 | Not to highjack the thread, this is interesting. Does anyone know what years used 15" wheels with the 6x5.5 pattern? | | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | '55-'87 for sure, although there were some that predated that, particularly the split type that were used on the pre War 3/4 tons.
Bill Burmeister
| | | | | Joined: Dec 2006 Posts: 1,464 Shop Shark | | Shop Shark Joined: Dec 2006 Posts: 1,464 | Thanks Bill, you da' man! | | | | | Joined: Oct 2006 Posts: 122 Shop Shark | | Shop Shark Joined: Oct 2006 Posts: 122 | Does anyone happen to know in the 6x5.5 Rally will clear the front disc brake conversion?
Also possibly 15x6, were different sizes ever available such as 15x7, 15x8, 15x? Starting to like the looks of these more and more as well as the price if I could put narrow up front and wide in the rear..... ! Man this would be so much easier if there were a refernce chart somewhere that listed offests, back spacing, hub diameters, etc...
Last edited by 57 vroom vroom; 07/14/2010 7:41 AM.
| | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | The factory Rallye only came in 2 sizes, 15x7 and 15x8, and they do not match. The 15x7 only came in the 5x5 bolt pattern, and was used on 2wd trucks up to '87, G vans up to '94, and there was a special edition Caprice that had them in the mid '70s. The 6 lug only came in 15x8, and was used from '73 (Blazer only, all 1/2 ton after '74) up to '87 (pickups, Blazer and 'Burb used them to '91).
Bill Burmeister
| | | | | Joined: Jun 2010 Posts: 188 Shop Shark | | Shop Shark Joined: Jun 2010 Posts: 188 | I have a set of rally's on my 65c10. 15x7 on the front and 15x8 on the back. All are 6 bolt. The 7" ones are quite rare. There are some out there. The rally's should fit your discs as they came out in 73 when most trucks had discs on the front.
You can buy reproduction rally's in most any size and width too.
Look on ebay. Or stockton Wheel. | | |
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