So I'm planning on running a 10 mm spacer upfront. I'm guessing the stock studs are longer than the actual spacer so I have really two options.

1. Use open nuts for the studs and cut the studs to fit the spacer.

2. Replace the stock studs with longer and run them through all the way and use them for the wheel as well.

Any advice on the best route to go? Also, how much of a pain is replacing all the studs upfront?

Dude it's 1/3" you will be fine .

@urban
i think I will lose about 3 turns on the lug nut with a 10mm....I'm not an engineer, but I think this could possibly be u safe.

@joker
I read that thread, it's great. But I'm trying to determine if I can just cut the existing studs the width of the spacer. At 10-15 mm I think they would be to short? There are no holes on the backside of the rims for the studs to extrude into so they must be flush with the spacer.

My last resort is getting longer studs and honestly for 10mm and all that work/money it's def not worth it. Any other ideas?
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so you got a bolt on spacers and the problem is that your original studs stick out pass the spacers and wheels don't have holes in it.

In that case you can easily cut the studs off as long as you leave enough threads to properly tighten the spacer.

^^have not bought them yet but I was just worried that 10mm would be too short for the studs to engage fully with the nuts.

My worry is complete disengagement of the nuts and the wheel coming off....but technically the wheel will be covering the nuts for the spacer so worst case scenario is they just come loose.

​​​​​​ill measure and give it a shot.

Yes You should be able to get 5-6 turns on the wheels BUT The right way to do it is to get 10mm HUB CENTRIC spacers with 10mm longer than stock wheel studs. For the extra $30 the studs cost it's cheap insurance. It's not hard to install them either. I used the wheel stud installer bearing too

BTW I've seen some bad pics with the 10mm spacers with built in studs cracking because there is not enough meat holding the studs in

If you are thinking about cutting your stock studs, might as well just replace them. Since you would have to take them off the car to hack saw them anyway

https://www.z1motorsports.com/wheels...ol-p-9582.html

https://www.z1motorsports.com/z1-pro...ds-p-4215.html

Yeah I got the 10mm extended from them. Thanks for the advice though.

It is not safe to run 10mm without getting longer studs. There is only one company that makes a 10mm hubcentric "adapter" (bolt on) type spacer; FIC is the brand and they're high quality Japanese aircraft aluminum. I actually have a set for sale if you wanna buy them. I've been running mine for awhile now with no probs. Depending on what wheels you're running, you shouldn't have to cut your existing studs; all Nissan wheels have space in back to accommodate the offset studs. Always fasten wheel lugs to ~82 ft/lbs

To piggy back what others have said, the smallest "bolt-on" spacer is 15mm. Not even sure anyone makes a 10mm bolt-on style spacer, and I can't see how that could be safe if they did. You definitely need to just get longer wheel studs with a 10mm slip-on style spacer. It's the safest way to go about this. There's not enough thread on the stock studs to safely engage the lug nuts with a 10mm spacer in place. Hammering out studs and installing longer ones is pretty easy. If you really don't want to do that much labor, then go with 15mm bolt-on spacers.

See my post above yours