Volk ZE40X on 2025 GX550 OT

[nsfw302]

Sorry Nonamex, past few weeks have been a sudden rush with work travel. As of today I still don't have the studs installed but glad to hear you were able to get them installed on your end. Let us know which rings you end up with; I've noticed small vibrations as well.

 

[DCSanz GX550 OT+]

I ordered Rays Volk Racing TE37XT M-Spec 18x8 6x139.7 20mm Bronze QTY 5 & Rays 6H L33 19Hex Nut & Lock Set - 14x1.5 Black. Delivery is set for around February of 2026. After speaking with a Rays rep they told me that there was no issues with the above setup for lug to stud contact and that stock studs were long enough. Anyone else if you have more info for me I'd appreciate it.

 

[nonamex]

I ordered Rays Volk Racing TE37XT M-Spec 18x8 6x139.7 20mm Bronze QTY 5 & Rays 6H L33 19Hex Nut & Lock Set - 14x1.5 Black. Delivery is set for around February of 2026. After speaking with a Rays rep they told me that there was no issues with the above setup for lug to stud contact and that stock studs were long enough. Anyone else if you have more info for me I'd appreciate it.

With OEM studs you will get at most 5 full turns, which is not ideal. You would want to get at least 8 - 9 full turns for safety reasons. More so if you intend to take the vehicle offroad.

I would guess that the majority of people did not install longer studs and just went with plug and play. I opted for extended studs and will try out the smaller hub rings with the center caps.

Another option is to CNC the lug hole to 14 mm so you can use ET lug nuts. That was an option I would have taken if I hadn't gotten the extended studs. Just make sure you go to a reputable machine shop with a CNC machine and not some guy with a drill. The CNC route is less expensive and less time consuming.

By the way, most if not all Rays dealers will say the same thing since they either don't know any better or don't care.

 

[nartmot]

I am with @nonamex on this one, but it's up to everyone to research and decide what is best for them based on how much risk they can tolerate. My wheels don't arrive for another couple of months but I have my longer studs, required tools, centering rings, and center caps ready to go. I am also going to paint my calipers for fun.

For those interested, I was able to install extended wheel studs from Kyo-Ei SBLC. Was able to get thread engagement of at least 9.5 turns. I used 112 mm to 95.1 mm hub rings but that precludes using center caps due to push through design.

There are no push in center caps available for these wheels. Next step is to use 106 mm to 95.1 mm hub rings to accommodate the center caps. I was running Method MR305 wheels previously and there were slight vibrations through the steering column at speeds above 70 mph. The hub rings have remedied this issue so I'll be sticking with rings going forward.

Pictures or it didn't happen