Can I use extended studs?

[spdrcrgtr]

Quick question guys. I can't find my stock studs and I am putting new wheels on my m4. Right now I run 15mm spacers all around. Could I use those studs or will I need to get thr oem ones?

Thanks!

[AustinGelbM4]

Extended. Even though stock will likely reach through to the hub it won't go as deep and therefore not have the required amount of threaded surface area to SAFELY/PROPERLY hold wheel assembly to the hub.

[spdrcrgtr]

Thanks! Also, anyone knows the torque spec on the studs?

[AustinGelbM4]

Just to confirm, does your car use studs or bolts. If it's using studs then a conversion was done on it since these cars stock use bolts. My previous answer assumed you meant bolts. If using bolts the torque is 140 nM.

[spdrcrgtr]

Sorry I mean bolts.

[dvq]

You'll need extended wheel bolts for your spacers torqued to 140Nm or 103lb/ft.

I'd recommend doing a wheel stud conversion if you plan on removing wheels even semi regularly. Holding up a wheel and getting the wheel holes, spacer holes, and hub holes lined up for the wheel bolt is annoying.

[louieeg]

I think the question is can your use the extended bolts without the spacers. I’m interested in the answer also as currently I have 15mm spacers with extended bolts but plan to remove the spacers for aftermarket wheels. Can I use the extended bolts with the aftermarket wheels and no spacers?

[dvq]

Originally Posted by louieeg

I think the question is can your use the extended bolts without the spacers. I’m interested in the answer also as currently I have 15mm spacers with extended bolts but plan to remove the spacers for aftermarket wheels. Can I use the extended bolts with the aftermarket wheels and no spacers?

Ah I see, didn't understand that part.

I'd be inclined to say no and it sort of just depends on how extended the bolts are. For the fronts you might run into clearance issues with the bolts holding the hub to the spindle. On the rear you might run into clearance issues with the ebrake mechanism.