I just bought some XXR 521 20x10.5 square setup. Rear have no issues of clearance, but the front wheels are right on the vertical bar/metal. I hear many nightmares about the spacers with studs breaking off while normal driving. Would a better solution is to change out my stock front wheel studs to longer ones (1 inch longer) and use the cheap 5mm spacers without the built-in studs to clear the front suspension?

 

Ur putting 10.5 rather than 8.5 and still need spacers? I would not put spacers on at all and I'm gonna get the same setup with 8.5 in front

 

Yeah, not putting spacers for ascetic looks, but to clear suspension. I didn't want to go with 8.5 in the front because I want the looks of a larger step lip.

 

As far as spacers just get a well know brand with built in studs. Then again replacing front studs with longer ones is pretty simple also.

 

If you are going to replace spacers with studs (the right way), buy ARP extended studs. ARP is the leader in fastener technology for a reason.

 

Thanks for the replies. I'm probably looking to replace the stock studs and replace with ARP wheel studs that are longer and use spacers without the studs that comes with it.

 

I like this guy.

 

https://g35driver.com/forums/brakes-...ers-101-a.html

 

I just want something that's done right and not have to worry about wheels coming off due to incorrect installation of wheel with spacer (with or without studs). I've read about Ichiba spacers with studs sometimes break off with normal street driving. I don't have time to inspect the integrity of each spacers studs every other week or even every month.

 

When they are new you need to re torque at first drive-50-100-150-300 miles. Gotta make sure they set well.

 

Then the safest option is to install wheels that fit correctly without spacers.

There is risk in any spacer, and checking the torque is critical. I've seen spacers fail (specifically the slip on type) and it's not a fun thing ot have happen. I've also seen plenty of studs snap from spacer usage.

At a minimum, upgrade your studs to the ARP ones suggest. I would recommend the bolt on type spacers over the slip type for a few technical reasons.

I personally refuse to run spacers.

 

The only risk with a spacer is a second joint to tighten. people over/under tighten them, dont use hubcentric spacers, or some install error usually causes issues. If u use ichiba HR spacers, there is no risk except a second fastening point to screw up. I recently posted hardness results on ichiba studs, and they came out to be of the same material. Also before you get too far, it will be hard to find a 5mm hubcentric spacer.

Hubcentric is important to make sure the load is put only on the hub and not the bolts. the bolts only take lateral force, not shear. Ichiba's hubcentric tolerances are DEAD on, which says something about their quality also probably why they use two piece. U'll see I had to wrestle it off a bit.

VVWhy cheap spacers are bad. VV

 

Doing a little research on spacer's and I ran across this thread. Now I know what I'm going to do... this was a big help for me.