Y2K wheel fitment and finish
Thread Starter
Race Director
Joined: Aug 2006
Posts: 13,542
Likes: 1
From: Are you fat because you're lazy or lazy because you're fat? San Jose, CA
Cruise-In X Veteran
St. Jude Donor '09
Y2K wheel fitment and finish
I just got my 01 coupe a month or so back. While I'd love to put some CCWs or HREs on this car(who woudln't) but I can't afford them right now. So I have a few interim wheels solutions:
1) Find another 18x9.5s pair of rear OEM Y2Ks. Can an OEM set of the rear 18x9.5 wheels bolt right onto the front?
2) If this doesn't work or is more than $500 to pull off, then I may try and mount my 17x9.5 and 17x11 Fikse FM/5s from my LT1 Z28 onto my new C5. The bolt pattern will match, and Fikse told me that the offsets wold probably be close, but that the wheels would not be hubcentric. What does this mean?
Finish Question:
Are the OEM Y2Ks a high polish aluminum or chrome plated? A lot of the knockoffs are chrome and lower quality.
Edit: Sorry, I just realized this should have been in the General Tech forum. My mistake, I'm still new here.
1) Find another 18x9.5s pair of rear OEM Y2Ks. Can an OEM set of the rear 18x9.5 wheels bolt right onto the front?
2) If this doesn't work or is more than $500 to pull off, then I may try and mount my 17x9.5 and 17x11 Fikse FM/5s from my LT1 Z28 onto my new C5. The bolt pattern will match, and Fikse told me that the offsets wold probably be close, but that the wheels would not be hubcentric. What does this mean?
Finish Question:
Are the OEM Y2Ks a high polish aluminum or chrome plated? A lot of the knockoffs are chrome and lower quality.
Edit: Sorry, I just realized this should have been in the General Tech forum. My mistake, I'm still new here.
Last edited by SLO C5; Aug 27, 2006 at 01:13 AM.
Le Mans Master
Joined: Sep 2000
Posts: 6,098
Likes: 43
From: ABQ NM
Cruise-In II Veteran
Originally Posted by SLO C5
I just got my 01 coupe a month or so back. While I'd love to put some CCWs or HREs on this car(who woudln't) but I can't afford them right now. So I have a few interim wheels solutions:
1) Find another 18x9.5s pair of rear OEM Y2Ks. Can an OEM set of the rear 18x9.5 wheels bolt right onto the front?
YES THEY WILL BOLT RIGHT UP AND FIT FINE.
2) If this doesn't work or is more than $500 to pull off, then I may try and mount my 17x9.5 and 17x11 Fikse FM/5s from my LT1 Z28 onto my new C5. The bolt pattern will match, and Fikse told me that the offsets wold probably be close, but that the wheels would not be hubcentric. What does this mean?
FROM THE TIRERACK:
The centerbore of a wheel is the size of the machined hole on the back of the wheel that centers the wheel properly on the hub of the car. This hole is machined to exactly match the hub so the wheels are precisely positioned, minimizing the chance of a vibration. With a hubcentric wheel, the lug hardware will not be supporting the weight of the vehicle, all they really do is press the wheel against the hub of the car. Some wheels use high quality, forged centering rings that lock into place in the back of the wheel. This is an acceptable alternative.
If you have non-hubcentric (lugcentric) wheels, they should be torqued correctly while the vehicle is still off of the ground so they center properly. The weight of the vehicle can push the wheel off-center slightly while you're tightening them down if left on the ground.
Finish Question:
Are the OEM Y2Ks a high polish aluminum or chrome plated? A lot of the knockoffs are chrome and lower quality.
OEMS ARE HIGH POLISHED ALUMINUM - THERE ARE NO CHROME PLATED WHEELS FROM THE FACTORY.
1) Find another 18x9.5s pair of rear OEM Y2Ks. Can an OEM set of the rear 18x9.5 wheels bolt right onto the front?
YES THEY WILL BOLT RIGHT UP AND FIT FINE.
2) If this doesn't work or is more than $500 to pull off, then I may try and mount my 17x9.5 and 17x11 Fikse FM/5s from my LT1 Z28 onto my new C5. The bolt pattern will match, and Fikse told me that the offsets wold probably be close, but that the wheels would not be hubcentric. What does this mean?
FROM THE TIRERACK:
The centerbore of a wheel is the size of the machined hole on the back of the wheel that centers the wheel properly on the hub of the car. This hole is machined to exactly match the hub so the wheels are precisely positioned, minimizing the chance of a vibration. With a hubcentric wheel, the lug hardware will not be supporting the weight of the vehicle, all they really do is press the wheel against the hub of the car. Some wheels use high quality, forged centering rings that lock into place in the back of the wheel. This is an acceptable alternative.
If you have non-hubcentric (lugcentric) wheels, they should be torqued correctly while the vehicle is still off of the ground so they center properly. The weight of the vehicle can push the wheel off-center slightly while you're tightening them down if left on the ground.
Finish Question:
Are the OEM Y2Ks a high polish aluminum or chrome plated? A lot of the knockoffs are chrome and lower quality.
OEMS ARE HIGH POLISHED ALUMINUM - THERE ARE NO CHROME PLATED WHEELS FROM THE FACTORY.
Burning Brakes
Joined: Nov 2004
Posts: 993
Likes: 0
From: PA
I could be wrong, but I think I remember s senior member posting a little while ago, that you must have a diameter difference between the front and rear wheels. Something related to the EBTCM, but I'm not sure. Maybe someone will know what I think I remember. LOL
Melting Slicks
Joined: Jun 2004
Posts: 3,439
Likes: 6
From: Newark, DE
St. Jude Donor '06
1) Y2k rears work fine on the front. That is what I previously ran.
2) Hub centric wheels ensure that the center of the wheel is perfectly centered and load bearing on the car's hub. Otherwise centering and load are distributed on the wheel studs (not as good). Use your favorite search engine and search for hub-centric adapters.
The OEM wheels are "high polish," meaning that they are polished and then clear coated.
HTH!
2) Hub centric wheels ensure that the center of the wheel is perfectly centered and load bearing on the car's hub. Otherwise centering and load are distributed on the wheel studs (not as good). Use your favorite search engine and search for hub-centric adapters.
The OEM wheels are "high polish," meaning that they are polished and then clear coated.
HTH!
