So I've searched and can't find a good answer to my question. For those who run spacers, what's the biggest size you run without extended studs? I'm looking to get 10mm hubcentric front and rear but if I can avoid pressing in new studs that would be awesome.

 

id say 5mm is the max...anything above u need extended studs or the spacers with built in studs.

 

^ he's right....when I went with 10mm spacers, I added new studs. Not worth your wheels falling off and crashing!

 

Gotcha, thanks you two. I plan getting new wheels in a few months and just wanted a cheap temporary fix for the sunk look. Guess I'll just stick to 5mm for awhile.

 

I wouldn't go more than 3 mm without extended studs. Especially if you are driving hard. The studs take less than 30 minutes per wheel. Remove caliper and dust shield, whack them out with a hammer, add new ones from the rear and tighten them with an open ended lug nut and washer. Done.

 

There's gonna be a lot of varying opinions lol. Some people will say any spacer should have extended studs to compensate for the lost length. Most will say 3-5mm is safe, and anything over requires extended studs. Then you'll even have some say you can run 10mm or larger lol.

 

Don't sweat swapping out the studs. On the front you DO NOT have to remove the caliper or the dust shield. There is a void in the dust shield that will allow you to knock the factory studs out. On the rear you have to remove the caliper and the rotor but it's still no big deal. It took me less than an hour to do all four.

 

If you're using spacers for your stocks, then you should do 15mm front and rear. I used them before I got aftermarket wheels and it gives a nice look..i was also lowered on h&r's with no rubbing..ichiba v2 spacers have the studs built in so its pretty much bolt-on..just my .02

 

5mm with stock studs unless you fo with the ones that have the stubs pre-pressed (ex Ichiba V2).

 

Yeah I think I will just get some 5mm w/o studs. I will be getting wheels with tax returns so it's not really worth spending the money on the expensive ones and I wouldn't want to press in some cheap studs on my car. Thanks for the info guys!

 

Very good info! I've been deciding whether or not to do this when I go aftermarket; glad to know it is indeed very simple.

Now, exactly what extended studs did you go with...ARPs for an IS300 I've heard work like a charm? Can you use these extended studs with a OEM rim?

 

I'm running H&R spacers and the extended studs come with them. You can run extended studs with either the factory rims or aftermarket.

The only thing you can't do is run any wheel with the extended studs without running the spacers. (Unless you are using open ended lug nuts or extended lug nuts.) You don't want to bottom out the lug nut on the stud before it gets tight.

 

Better go with pre-pressed spacer. 3-5mm gives you like nothing

 

had these for a year no problem so far

http://www.ichibausa.com/ProductDeta...tCode=TO-12540

 

I've heard 20mm all around is a better fit than just 15mm in the front? Can anyone confirm?