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[TypeG]

Is 5-8mm spacer safe to use without extend studs?

[mocchi]

no. generally from what ive read, 3mm is okay without extended studs.
however, i have never seen any data backing up those statements.

service manual also specifies based on torque rating, not on how many mm does the wheel nuts has to be threaded in studs.
having said that, i dont think it is safe to have 1mm of thread left to torque up your wheel nut.

[mnc]

Think about it. Once you use slip on spacers your wheels are not sitting on the hub anymore. ( the hub is what takes the load and the wheel nuts/stud is just there for support and to secure the wheel into place )

You need something like hubcentric spacers to be on the safe side =]

[AE092]

Also another note, if you get into an accident - take the spacers off. Any assessor who inspects the car post accident and sees the spacers (or anything that will void the insurance claim) will not cover your car under their terms of agreement. This goes for the same for the police if they have to inspect it as well, only you'll be copping a fine for it.

[Bludger]

any bolt no matter how large or small, high torque or low, it will only ever use up 6 threads.

most of that torque is taken up on the 1st 3 threads and the other 3 will take the rest, which is not much.

[ekdez]

sorry to bring up an old thread..

so would running 5mm slip spacers be a bad idea for just normal street driving on half decent roads(i.e. not sydney)..
or would extended lugs be a good option in the long run.
ive been told me a reputable wheel company that running 5mm spacers is fine, but im just curious.

i have heard people run 5mm slip spacers all the time around the track safely.. as a maximum.

thnaks!

nvm i kept searching and found this.. :http://www.ozhonda.com/forum/showthread.php?130387-Discussion-Wheel-Spacers....-Different-types-pros-and-cons-safety-and-legality&highlight=spacers

[mugen_ctr]

wheres the evidence to prove its bad to run it? im running 8mm on a daily an its perfectly fine, had few spirited driving sessions with it, held up fine

[TALEB TYRES]

firstly yes its illegal,
secondly depending on the quality, i've seen it where the slip on adapter over time compresses making your tightly torqued nuts not so tight anymore.
and if they are not hub centric(ie universal slip ons) then yes the wheel is not sitting on the hub and you may start getting vibrations, also issue of load bearing but street use doesnt reallly make a difference.

in saying that i ran bolt on adapters and 2 slip ons under those for a year without any problem at all(was too lazy to find a new set that fit right and got done at the pits for spacers & adapters on the old set.)

as a trader i say i never recommend it, as a car enthusiast i say just do it.

[vinnY]

I personally wouldn't run any spacers without extended studs of some sort

that said I'm running on arp extended studs with h&r 10mm and 15mm slip on spacers

[91type-r]

All bolt and nut combinations are designed to be totally square! for eg: a 12mm bolt has a nut that is no thinner then 12mm. this is so that the thread has a standard amount of contact for its size and load rating.
The use of spacers that reduce the amount of thread in the nut to less than the thread size is dangerous and prone to failure.