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Help with 19 inch tire size 2001 996 C4 with PSM

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YOUR RESEARCHHelp with 19 inch tire size 2001 996 C4 with PSM

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Replace wheels and tires

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Suggestion
I know it's a PITA to change wheels and tires for the seasons, but it's something you should consider for the future.
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Help with 19 inch tire size 2001 996 C4 with PSM

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Leading evidence: 'Replace wheels and tires' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace wheels and tires' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Replace wheels back a forth in the winter)

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Suggestion · Original poster
Car is a DD and I don't want to be changing wheels back a forth in the winter)
Original post Read captured discussion
Help with 19 inch tire size 2001 996 C4 with PSM

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Replace wheels and tires

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Suggestion
I know it's a PITA to change wheels and tires for the seasons, but it's something you should consider for the future.
Original post Read captured discussion
Help with 19 inch tire size 2001 996 C4 with PSM

Replace wheels back a forth in the winter)

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Suggestion · Original poster
Car is a DD and I don't want to be changing wheels back a forth in the winter)
Original post Read captured discussion
Help with 19 inch tire size 2001 996 C4 with PSM

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POST 1 / ORIGINAL POSTEROriginal post

Looking for some help with the proper tire size for 19's on my C4 so I don't screw up the all wheel drive/PSM. I've been reading a ton of threads and have landed on what I think is best based on overall diameter and front/rear ratio as close as I can get it. Anyone have a C4 with 19's and PSM that could verify these will work and not light up my dashboard with warnings? Thanks in advance... 275/30/19 Rear 235/35/19 Front (I'd prefer 245/30/19 but can't find an all season tire in this size. Car is a DD and I don't want to be changing wheels back a forth in the winter)

POST 2Original post

As you know from your research, there is no "proper" size recommendation for a 19" wheel on a 996. Porsche recommends nothing larger than 18". That being said, the most common thinking that you'll find on this board is that keeping your wheel/tire diameters within 3% of one another from front to rear is acceptable, and shouldn't burn up your front differential. I think most people will tell you that if you find a size that keeps front and rear within 3% and doesn't rub, then you should be fine. I know it's a PITA to change wheels and tires for the seasons, but it's something you should consider for the future. I did it on my 996 and I do it on my 997. It is more expensive, but it improves grip and performance in all situations. If you drive your car quite a bit, then it might be worth the investment.

POST 3Original post

I have 19s on mine. No problem. The tire depends on your wheel size, you need to look at tire mfg size charts. But 235/ 35 front and 275 ( Not very wide ) to 305 / 30 rears are ok basically 35 front and 30 or 25 rear

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