REPLACEMENT RIMS FOR SS

MelloYellow · 02-03-2018, 10:16 AM

Hi all, looking for input from a tire/wheel professional that can assist with a concern. I am in the process of ordering new aftermarket rims and will be mounting the original tires. The rims I am interested in are supposed to be direct replacement however the width and offset vary from the original. I am most concerned with rubbing and harness contact and hoping you can help. The replacement rims are as follows: front, 20x8.5 with +35 offset, and the rear I have a choice between 20x9.5 with either a +35 or +45 offset, or 20x11 with a +45 offset. Any input would be appreciated! Thanks!

BradfordCamaro · 02-03-2018, 11:38 AM

Hi local forum member.

The 20x8.5 will sit in 10mm more. It will look weird. You could throw on a 5mm spacer to help. But the wheels are tucked in far enough stock.

The 20x9.5 35mm is pretty close to stock. 4mm less , placing them slightly in.

The 20x11 should be 38mm to 43mm. So there is a good risk of rubbing in the back. Again, a small spacer can take care of that.

What are you looking at? Maybe there is a similar wheel that comes with correct sizing?

Mark114 · 02-03-2018, 01:49 PM

Agreed with Bradford on the front wheels.

The factory offset for the rear wheels is +39 mm so the 9.5" wheel with +35mm would sit out about 1/4" wider than factory. That shouldn't be a problem.

The 11" wheel is wider than the factory rear Goodyear tire. Mounting it on an 11" wide wheel will look stretched. If you're not planning to buy wider tires then it will look better on the 9.5" wheel IMHO.

MelloYellow · 02-03-2018, 08:52 PM

Quote:

Originally Posted by Mark114

Agreed with Bradford on the front wheels.

The factory offset for the rear wheels is +39 mm so the 9.5" wheel with +35mm would sit out about 1/4" wider than factory. That shouldn't be a problem.

The 11" wheel is wider than the factory rear Goodyear tire. Mounting it on an 11" wide wheel will look stretched. If you're not planning to buy wider tires then it will look better on the 9.5" wheel IMHO.

So I just want to get this correct. The lower number offset will move the wheels outward, correct? And the higher number, inward? What if I went with the 9 1/2 inch rim for the front with the 35 mm offset? This should put the rim in a very similar position to original, would it not? Is there clearance on the inside of the wheel So that it will clear the calliper and not rub on anything else?

JRS · 02-03-2018, 10:07 PM

I don't know the specific offset but the rear SS wheels will not fit in the front without a 10 mm spacer and longer studs. I put the same 9.5 x 20 all the way around so I can verify this.

If you do try to use the same size rim make sure either the offset is different from front to back or you put a spacer on so the wheel clears the strut.

MelloYellow · 02-06-2018, 03:34 PM

Will a 5mm spacer require a longer stud? I will be keeping the same 8.5" width but the offset is 35, vs the 25 original...

Soleil · 02-06-2018, 05:14 PM

Nop. With 5mm spacer you can use the OEM studs and nuts. As from 15mm you need longer studs which are coming with the spacer.

wrankin · 02-07-2018, 08:17 AM

maybe this will help

Bill

02-03-2018, 10:16 AM	#1
MelloYellow Drives: 2016 Camaro SS Convertible Join Date: Jul 2017 Location: Aurora, Ontario, Canada Posts: 18	REPLACEMENT RIMS FOR SS Hi all, looking for input from a tire/wheel professional that can assist with a concern. I am in the process of ordering new aftermarket rims and will be mounting the original tires. The rims I am interested in are supposed to be direct replacement however the width and offset vary from the original. I am most concerned with rubbing and harness contact and hoping you can help. The replacement rims are as follows: front, 20x8.5 with +35 offset, and the rear I have a choice between 20x9.5 with either a +35 or +45 offset, or 20x11 with a +45 offset. Any input would be appreciated! Thanks!

02-03-2018, 11:38 AM	#2
BradfordCamaro SABIO Drives: 2016 CAMARO 1SS Join Date: Jul 2015 Location: Bradford, ON Posts: 5,012	Hi local forum member. The 20x8.5 will sit in 10mm more. It will look weird. You could throw on a 5mm spacer to help. But the wheels are tucked in far enough stock. The 20x9.5 35mm is pretty close to stock. 4mm less , placing them slightly in. The 20x11 should be 38mm to 43mm. So there is a good risk of rubbing in the back. Again, a small spacer can take care of that. What are you looking at? Maybe there is a similar wheel that comes with correct sizing? __________________

02-06-2018, 05:14 PM	#7
Soleil Drives: Camaro 50th anniversary edition Join Date: May 2017 Location: Europe Posts: 2,203 View My Garage	Nop. With 5mm spacer you can use the OEM studs and nuts. As from 15mm you need longer studs which are coming with the spacer. __________________ Soleil _____________________________________________ A car is fast enough, if you fear to unlock it in the morning." (Walter Roehrl)

02-07-2018, 08:17 AM	#8
wrankin Camaros Of Northwest Ohio Drives: 2016 Black 2SS Join Date: Nov 2013 Location: Perrysburg OH Posts: 879 View My Garage	maybe this will help Bill Attached Images __________________ 2023 2SS 1LE Red Hot 2016 2SS Black / Black & Arenaline Red (sold) 2023 GMC Canyon Denali 2013 2SS / RS - AGM / Jet Black (sold) 1970 1/2 Z/28 Classic Copper / Tan (sold many years ago)

02-03-2018, 01:49 PM	#3
Mark114 Drives: 2016 2SS Convertible Join Date: May 2012 Location: St. Louis, MO Posts: 1,758 View My Garage	Agreed with Bradford on the front wheels. The factory offset for the rear wheels is +39 mm so the 9.5" wheel with +35mm would sit out about 1/4" wider than factory. That shouldn't be a problem. The 11" wheel is wider than the factory rear Goodyear tire. Mounting it on an 11" wide wheel will look stretched. If you're not planning to buy wider tires then it will look better on the 9.5" wheel IMHO.

02-03-2018, 10:07 PM	#5
JRS Drives: 16 camaro M6/ 18 ZL1 camaro A10 Join Date: Nov 2015 Location: MD/PA LINE Posts: 202	I don't know the specific offset but the rear SS wheels will not fit in the front without a 10 mm spacer and longer studs. I put the same 9.5 x 20 all the way around so I can verify this. If you do try to use the same size rim make sure either the offset is different from front to back or you put a spacer on so the wheel clears the strut.

02-06-2018, 03:34 PM	#6
MelloYellow Drives: 2016 Camaro SS Convertible Join Date: Jul 2017 Location: Aurora, Ontario, Canada Posts: 18	Will a 5mm spacer require a longer stud? I will be keeping the same 8.5" width but the offset is 35, vs the 25 original...

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