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73-87 Chevy _ GMC Trucks => Wheels & Tires => Topic started by: 86c10 on May 21, 2021, 12:37:48 pm

Title: C10 6 lug conversion
Post by: 86c10 on May 21, 2021, 12:37:48 pm
I’ve look into doing a 6 lug conversion on a ‘74 c10 so I can run ‘99 and up 6 lug wheels. It looks like I can do this with out adapters by using front rotors from an early 90’s light duty 2500 and rear axle shafts from a k10. Has any body on here done this swap and how do the stock later model wheels fit? I tried searching but wasn’t coming up with any info.
Title: Re: C10 6 lug conversion
Post by: VileZambonie on May 21, 2021, 04:13:23 pm
The logical thing to do would be to run wheel adapters for $150 bucks and be done with it.
Title: Re: C10 6 lug conversion
Post by: 86c10 on May 21, 2021, 06:49:11 pm
The logical thing to do would be to run wheel adapters for $150 bucks and be done with it.

I thought about spacers but I wasn’t sure if that would push the factory wheels out to far. Either way will cost me about $150.
Title: Re: C10 6 lug conversion
Post by: JohnnyPopper on May 21, 2021, 09:44:01 pm
Other considerations are bearing size on spindles and rear axles. You can cross reference them online, but I would start there.

Then measure the center line of the wheels you want to use/run against the same of your rotors before and after (using adapters)

If not familiar with the term 'center line' it's the mating surface of your wheel to your rotor/drum.

Measure against the width of the wheel to the rear, or inside. Subtract the inner distance from the overall width of the wheel.

 
Title: Re: C10 6 lug conversion
Post by: 86c10 on May 22, 2021, 08:12:49 am
Other considerations are bearing size on spindles and rear axles. You can cross reference them online, but I would start there.

Then measure the center line of the wheels you want to use/run against the same of your rotors before and after (using adapters)

The front inner and outer wheel bearings are the same but I forgot to check the axle bearings. Thanks for the input.

If not familiar with the term 'center line' it's the mating surface of your wheel to your rotor/drum.

Measure against the width of the wheel to the rear, or inside. Subtract the inner distance from the overall width of the wheel.

 
The front wheel bearings are the same but I forgot to check the axle bearings. Thanks for the input
Title: Re: C10 6 lug conversion
Post by: Canadian 4X4 on June 04, 2021, 05:57:16 pm
Summit offers a 6 bolt conversion rotor  I used them to run transit wheels everything fit as it should. The 6 lug light duty 90s rotors wouldn't work the caliper wouldn't bolt back up. It's been a few years but I think the rotor was set inward too far

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Title: Re: C10 6 lug conversion
Post by: 86c10 on June 05, 2021, 09:04:24 pm
Summit offers a 6 bolt conversion rotor  I used them to run transit wheels everything fit as it should. The 6 lug light duty 90s rotors wouldn't work the caliper wouldn't bolt back up. It's been a few years but I think the rotor was set inward too far


Awesome, thanks for the info. Did you just run spacers in the rear?

Title: Re: C10 6 lug conversion
Post by: Canadian 4X4 on June 06, 2021, 05:32:41 am
I just ran a 4x4 rear end. You can run just the axles too

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Title: Re: C10 6 lug conversion
Post by: 86c10 on June 12, 2021, 06:13:55 pm
I just ran a 4x4 rear end. You can run just the axles too

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Thanks!