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This should have been easy to figure out but I have failed. I got an aftermarket steering wheel for my '73. It has 6 holes. Well, the original steering wheel also has 6 holes. But they aren't aligned the same. This wheel has screw holes at 12 and 6 o'clock, and the stock wheel has holes at something like 2 and 10 o'clock. They won't line up.
So, what adapter do I need? Some sort of 6 hole to other 6 hole? I know there's a simple answer... (Non-adjustable column.)
The factory ‘73 mounting pattern is 6x2 3/4”, which is very close to 70mm. You would need an adapter like you say. If you don’t want too many clearance issues though it might just be easier to get a different wheel in the same style with the mounting pattern you need.
Last edited by Piersonpie; Oct 25, 2025 at 07:03 PM.
The factory ‘73 mounting patters is 6x2 3/4”, which is very close to 70mm. You would need an adapter like you say. If you don’t want too many clearance issues though it might just be easier to get a different wheel in the same style with the mounting pattern you need.
Thanks for the info. I've been looking at adapters, I just don't know which one to get. Would I be adapting from the stock 6-hole pattern to the new pattern, or use an adapter that uses the 3 holes that are in the hub to the new wheel pattern? I guess that's what's confusing me.
You will have to measure or find out the mounting pattern size of the wheel you want to use.
"Universal 6 Bolt Pattern 2.75" or 70mm BC." Thought since this is a standard pattern, it would be easy to find an adapter to C3 Corvette. That's what I'm looking for.
If your really keen to use this wheel. Why not just drill 6 holes in it? Won't be seen once the horn button is reinstalled.
Yes, I could do that. Just thought an adapter for a standard wheel like this would be pretty common. I've seen 1/2" adapters that will fit the new wheel; I could also get one of those and drill holes in it to fit the existing Corvette pattern. This thing:
This is the wheel. I wanted something more modern looking and I'll get a little leg room with the D shape. And it has a little retro look, the three slotted spokes like stock. I have the wood accent interior; this goes pretty well with that too. Was not expensive either. So, I'll make it work.
I actually like that one. Looks a lot like mine except with a flat bottom.
The only issue I would think of with the adapter is if it would affect the horn button components. I know the contact mounts above the steering wheel, you might need to make other modifications if you have the extra length of an adapter. I like the idea of drilling it.
I actually like that one. Looks a lot like mine except with a flat bottom.
The only issue I would think of with the adapter is if it would affect the horn button components. I know the contact mounts above the steering wheel, you might need to make other modifications if you have the extra length of an adapter. I like the idea of drilling it.
So, I'm guessing that wheel didn't need an adapter and was made to fit Corvette? That's pretty much the look I was going for...
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The only issue I would think of with the adapter is if it would affect the horn button components. I know the contact mounts above the steering wheel, you might need to make other modifications if you have the extra length of an adapter. I like the idea of drilling it.
The new wheel came with a horn switch, should be easy to just wire that in instead of the stock horn switch set up.
Last edited by zxryder72; Oct 25, 2025 at 10:22 PM.
The steering wheel in my 80 is from VSW (formerly Volante). It bolted right on. They have lots that are a drop-in replacement for our cars (any "S6" wheel). The S6 Step Series are a direct replacement.
The steering wheel in my 80 is from VSW (formerly Volante). It bolted right on. They have lots that are a drop-in replacement for our cars (any "S6" wheel). The S6 Step Series are a direct replacement.
Thanks. I'm thinking this one would work but it's more of a replacement hub than an adapter. I ordered one of the 1/2" adapters, they are very cheap, and I plan to fill in then re-drill the outer ring of holes to match the stock hub. If I can't make that work, I'll look at getting this one.
Flaming River Columns w/ GM Spline Style | S6 Black Hub Adapter | STH1035BL
One thing I hadn't considered is the depth of the wheel. I just compared to the stock one; new one is more dished, stock wheel is pretty flat. With a 1/2" adapter, the wheel will be about 2" closer to me than stock. Wonder if that will be a problem...
If your really keen to use this wheel. Why not just drill 6 holes in it? Won't be seen once the horn button is reinstalled.
I'll see if I can handle the wheel being closer to me, but I can save a half inch by just drilling a new set of holes in the wheel. I think in the end, it was a simple question with a simple answer. 4-vettes, I think you win the prize!
So, since I got the 1/2" adapter I modified it and made it work. Was a lot of work and would have been simpler to just drill another set of holes in the new wheel but now I can share what I learned. I took a few photos as I went along and will post them here eventually.
It's closer than the stock wheel but not too bad. I'm putting in new seats, so I'll see how I like it after the driver's seat is in. The wheel came with a cheap plastic horn button, so I got a nice Forever Sharp one. I found a 1.5" Corvette badge I can stick on there but haven't put it on yet. I found a simple way to connect the horn button that I'll post on here later.
Last edited by zxryder72; Nov 17, 2025 at 07:15 PM.