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967 Snow wheels/tires on 958?

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Old 12-10-2017, 05:28 PM
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Igooz
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Default 967 Snow wheels/tires on 958?

Cayenne experts: We have 2 Cayennes; a 2010 Cayenne GTS (957) and a 2017 Cayenne GTS (958). Long, and sad story, ..., health reasons, she only put 1,250 miles on the '17 and I will be selling the '10 now with only 28,000 miles. Photos and question: Can I put the Snow wheels and tires from the 2010 on her 2017, or do I need to buy another set of wheels?
(I was planning on keeping the '10 for sentimental reasons and frankly the V8 rumble is amazing...but...)



Old 12-10-2017, 05:30 PM
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Igooz
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Default 957 Snow wheels/tires on 958?

Screwed up the title...957 Snow wheels/tires on 958?
Old 12-10-2017, 06:02 PM
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Kirill
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Wow that will be some interesting deal on that 2010 GTS with low miles for sale

If you can figure out width \ offset on your 957 wheels - You can look at the https://www.porsche.com/usa/accessor.../tyreapproval/ approved wheels & tires to see if it will fit
Old 12-10-2017, 08:01 PM
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deilenberger
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You can't use 18" rims on the new GTS. The GTS shares the 958 turbo brakes (390mm) and 19" "just" clear the caliper. 18" are a no-go unfortunately.
Old 12-10-2017, 08:29 PM
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Igooz
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^I always appreciate your advice.
The 957 GTS has “Big Reds” but the 958 GTS seems to have “Giant Reds”...so you’re thinking that they won’t clear the barrel?

I also know that the TPMS frequencies are also different. Thank you.
Old 12-10-2017, 08:49 PM
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major dad
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Would a 53 and 57mm offset affect me using 18s instead of 21s, it seems I will be ok otherwise ? I sumhow recall that my 21" wheeels have 4mm spacers but cant recall where I read this ?

Edited to add mine is a Diesel.

Last edited by major dad; 12-11-2017 at 08:01 PM.
Old 12-10-2017, 08:50 PM
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Kirill
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according to the Porsche document,I linked above - 2015+ GTS required 19"
2011-2014 GTS will take 18" with standard brakes, or 20" if ceramic brakes
Old 12-11-2017, 12:01 AM
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deilenberger
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Originally Posted by Kirill
according to the Porsche document,I linked above - 2015+ GTS required 19"
2011-2014 GTS will take 18" with standard brakes, or 20" if ceramic brakes
I really don't care what the Porsche document says.. I own a '11 Turbo, same brakes as his GTS, and 19" clears the caliper by about 1/4". Porsche uses special flat wheel weights for the balancing. 1/2" smaller radius isn't gonna do it. And try to find someone who has run 18" on the 958 GTS. Since he owns the 18" it certainly might be interesting to try them on the 958, but I don't think there will be any joy. IF they fit over the caliper without actually scraping it I'd be surprised, and putting wheel weights on it? Not happening.

BTW - turbo/gts steel brakes = 390mm, the ceramic = 410mm, making the radius difference 10mm (0.4"). I've never seen 20's on the ceramics (all the ones I've seen have the sport-turbo 21" rims), but if we go by the logic of what you're quoting, it would seem 19" would fit the ceramics. They won't.

Just went and looked at the document you quoted. It said as of 2015 - Turbo/GTS - 19", 20" - and the original post is about a 2017 GTS. Ummm.. Porsche sez 18" ain't gonna fit. (Page 14..) I don't understand your point.
Old 12-11-2017, 10:15 AM
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wkearney99
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I gotta go with Don here. My '17 GTS wears 20" summer and 19" winter and there's definitely not a lot of clearance for the 19's on the front.

I don't think spacers would make enough difference as the barrel of the rims does not seem to 'taper' such that an offset would help clear the caliper. Now, I haven't measured anything to 'prove it' but I'm willing to go with Porsche's guidelines on this.

Sorry to hear health conditions are keeping her from enjoying the vehicles. Best of luck going through all that.
Old 12-11-2017, 10:36 AM
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Kirill
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Originally Posted by deilenberger
. It said as of 2015 - Turbo/GTS - 19", 20" - and the original post is about a 2017 GTS. Ummm.. Porsche sez 18" ain't gonna fit. (Page 14..) I don't understand your point.
I am trying to say there is a difference in fit on 958 GTS pre and post facelift.

Last edited by Kirill; 12-11-2017 at 11:04 AM.
Old 12-11-2017, 11:44 AM
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CarGuyNVA
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Please don't even ATTEMPT to mount/position the 18" set on the 958 GTS, you'll just start scraping everything up as the nice painted caliper starts scuffing the inside of the barrel of the wheel, and vice versa. Ugh.
Old 12-11-2017, 08:58 PM
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Thank you folks, I got my answer. I think that I will put this off until next March. At that time I will sell the ‘10 and put the ‘17 in service.
Next year I will look for a spare set of 20” or 21” snow wheels/tires for the ‘17.

All the best.
Old 12-11-2017, 09:16 PM
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wkearney99
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Originally Posted by Kirill
I am trying to say there is a difference in fit on 958 GTS pre and post facelift.
You may well be correct, with the GTS particularly. The GTS has been sort of an 'odd man out' when it comes to equipment (engine, brakes, trim, etc).



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