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66 Grand Prix 8 lug conversion ?


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Hi guys this is my first post, I look forward to learn from everyone here as well as share any knowledge I have as well. I'm Johnny I have a 66 Grand Prix I converted the front 8 lug drums to 5 lug disc that was a conversion kit I got from a parts yard from abother full sized pontiac , my question is I still have the 8 lug drums in the back and the rim size is smaller then my new front steel wheels ! I wanted to know can I just pull the hub off the tears and slap on a 5 lug drum and throw on some Steele wheels to get me by for now ? Or is there a finned rim that would match my rears I can throw over my 5 lug from discs! I would like to keep it looking original but if I can't so be it ! Any help is appreciated guys thank you so much !!

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Check these guys, might get back to using your 8luggers in the front and keep the car correct. Have another member here working on his 8 lug project. They might be able to make what you need, ask if you don't see it on the list. Pass your info along and good luck with your project.


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Hi guys this is my first post, I look forward to learn from everyone here as well as share any knowledge I have as well. I'm Johnny I have a 66 Grand Prix I converted the front 8 lug drums to 5 lug disc that was a conversion kit I got from a parts yard from abother full sized pontiac , my question is I still have the 8 lug drums in the back and the rim size is smaller then my new front steel wheels ! I wanted to know can I just pull the hub off the tears and slap on a 5 lug drum and throw on some Steele wheels to get me by for now ? Or is there a finned rim that would match my rears I can throw over my 5 lug from discs! I would like to keep it looking original but if I can't so be it ! Any help is appreciated guys thank you so much !!

So are you looking to convert the rears to a 5-lug drum or 5-lug disc brake set-up?

Are you looking to get the stock 8-lug look back even though you running 5-lugs? Did I miss anything?

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Thank you justa6 I emailed me so I'll let you know when they get back ! Frosty I'm looking for whatever works if I could get the old school 8 lug to fit or retro fit to my 5 lug front disc that would be ideal to have the vintage look ! But if I have to swap the backs out to 5 lug drum I'll do that too ! But the only thing that confuses me is can I just get a 5 lug drum and slap it on ? Or do I have to change the whole rear set up I'd rather leave it drum in the rear but I'm open to suggestions I just wanna get all the rims matching and for it to set level

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  • 2 weeks later...

I read someone had an 8-lug front disc set-up for the big cars. I have to research this. Also, if you convert your rear to a 5-lug, you will probably have to switch out your axle shafts too. That can start to get really expensive. Let me do some looking around.


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  • 2 weeks later...

I am with JUSTA on this, I know I read somewhere that someone had an 8-lug disc conversion kit. The question is who, where, and how much. I know it won't be cheap. I have to look through some old magazines to find it.


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