gearz

I've got 10X18 ET 65 wheels on the rear of my S4. I'd like to add a 6mm spacer to them to move the wheel out closer to the body. However, there is a lot more gap on the drivers side. Can I add a spacer to just the one side? If it won't hurt anything that would be preferable, I don't really need one on the other side. My tires are 275/35 BTW.
Thanks!

Mrmerlin

You need to take some measurements first.
Measure from the tire edge to the inner lip of the wheel well and find out how much difference there is,
usually you pull the fender out gently with some leather gloved hands.
Adding a 6mm spacer will mean that it wont keep the wheel hub centric as the the thinnest spacer thats hub centric is about 15mm.
So I would not recommend adding a 6mm spacer

gearz

There is a 10mm difference between the two: 25mm on driver side and 15mm on other side. Are you saying I should pull out the fender 10mm to match the other side? I don't think I'll be doing that.

I understand the deal with hub centric vs lug centric. I thought I could use up to a 6mm lug centric spacer with the existing lug bolts (read that on this forum) but I guess not. Certainly wouldn't want any issues with vibration at speed. Using 15mm hub centric spacers on both sides wouldn't work for me unless I pulled out the fender 5mm or so... So back to my original question, could I use one 15mm spacer on the drivers side only, or do they need to be used in pairs?

Mrmerlin

the other measurement you can take is to measure the upper rear crossmember to the body rail.
a drill bit can be used.
The rear crossmember is moveable side to side,
It also possible that the fender on one side is pushed in slightly, grabbing the lower edge with both hands and gently pulling can move the fender outwards wear leather gloves.
, I wouldnt be putting a spacer on one side as it could change the track and thus the response of the axle

okbarnett

its odd, but in the end you could space one side and then realign the car and make sure its aligned correctly afterward. Its not going to be all true and square but it should be ok.

mark kibort

dont worry about the hubcentric-ness. even the stock wheels dont fit that tight on the hubsentric raised area, however better than most aftermarket fits. the lugs press the wheels to the center via their taper . I was most concerned about the load on the studs, vs the hubcenteric raised area, but seeing how the aftermarket Kinesis wheels fit there, i had no problem using non hubsentric spacers. I use 1/8 or 1/4" spacers all the time. even a 1/2" spacer up front before I got the wheel remade to fit the bigger tires. I would be more concerned with how many threads you have to work with after the spacer.

as was pointed out, i wouldnt have two different spacers sizes though, unless the hub is actually 1/4" off center vs the other side.

Jim M.

H & R Springs makes a 10mm hubcentric spacer. But you will need to buy two!

Mrmerlin

Thanks for the info JM