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Studs?

A

Anonymous

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I am thinking about redrilling these hubs for a 5 lug pattern and using them on a build. The only question is, I'm not sure there's enough meat to safely hold them in place. I done a quick drill on a couple to actually see how they would look and they taped in like others would in new material. I would like some other opinions weather or not this would be safe. Here's a couple of photos.
 

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Well , personnelly I am not a fan of this method.
Beside , don't you have access to some old used ones ??
Used ones can't be that expensive or do they ?
 
I'm OK on the brakes fitting and they are 11" which were on these 4 lug hubs. Just as long as the hubs are strong enough for a car weighing almost the exact same amount. There is about .110" from the edge of the stud to the edge of the hub.
 
I think this can turn eventually from a cheap thing to a very expensive repair.

+1 for a look on a used five lug hub
 
With the .110, leftover you're not leaving a lot for the rim to seat against when the wheels are bolted on.

If you are stuck with working with the hubs you have, Would it be worthwhile to make an auxuliary hub could be pressed on to the back side of the existing hub. Face the backside of the existing hub, install the auxilary hub from the backside, maybe tig weld the seam on the front side, reface the front if welded, drill the new bolt circle, maybe tap through both plates and use screw in studs. This would give more support in the 0.110 area, and also give more room for the wheels to seat. Aside from an increase in weight, I don't see how something like this could hurt.

hub_adapter.jpg
 
Why are you doing this? Aren't 5 lug hubs available at a relatively low price?

If you need to do this, I too, am cautious about not being enough material on the perimeter.

I hope you can explain of what you are doing and why to help us all understand what you're up to a little more so we have less to guess about......
 
There going on an AWD Stang. So far I can't find any 5 lug hubs to replace these so redrilling seems to be the only option. Going to a 5 lug opens up a new world of wheel options as compared to the 4 lug, and the ones I want to use. Also, I have bought all the front suspension parts needed to do the swap but can change if absolutely necessary to another setup. A search on the net for "what is" too close has been useless. I don't want to be unsafe and that's why I ask for opinions. I would like to get this thing moving.
 
machine a flange on the existing hubs that increased the outside diameter. you could make a step on the flange that allows you to attach another ring with a matching flange from the back side and then weld the entire assembly together, clean it up and then bore the holes for the wheel studs.

This would be the best way to do this and have 'no doubt' about its safety.....
 
That's what I looking for. The info thus far is telling me that moving up to a factory produced 5 lug hub, knuckle, arm, strut and rack may be the best move and toss the idea of redrilling the 4 lugs. Thanks for your input.
 
As a structural engineer, I can tell you it is too close. General guidelines for bolt spacing is 3 x bolt diameter measured from center of hole to center of hole.
 
Thanks, I'm switching over to a Mazda 3 knuckle which is 5 lug hub and has a thicker and wider bearing. They share the same lower arms and attachment points as the Focus.
 
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