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Wheel/Tire advice - X post

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YOUR RESEARCHWheel/Tire advice - X post

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Replace tires go

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Suggestion
When it comes time to replace tires go with a 245/35 front, it will drop the ratio to about 1% if that's something you're worried about.
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Wheel/Tire advice - X post

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Leading evidence: 'Replace tires go' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace tires go' (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 tires you need

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Suggestion
If you change tires you need to go WIDER (not narrow as Zookie has stated) to a 245/35 front with the 305/30 rear.
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Wheel/Tire advice - X post

Run into any issues

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Suggestion
The closer to the OEM size ratio the better but you won't run into any issues.
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Wheel/Tire advice - X post

Use 225/35/19 and 305/30/19 combo

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Suggestion
you need to use 225/35/19 and 305/30/19 Combo.
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Wheel/Tire advice - X post

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Replace tires go

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Suggestion
When it comes time to replace tires go with a 245/35 front, it will drop the ratio to about 1% if that's something you're worried about.
Original post Read captured discussion
Wheel/Tire advice - X post

Replace tires you need

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Read evidence and context

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Suggestion
If you change tires you need to go WIDER (not narrow as Zookie has stated) to a 245/35 front with the 305/30 rear.
Original post Read captured discussion
Wheel/Tire advice - X post

Run into any issues

No successful repair reported for this finding.

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Unsuccessful attempts: 1
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Read evidence and context

Discussions that contain suggestions: 1

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Suggestion
The closer to the OEM size ratio the better but you won't run into any issues.
Original post Read captured discussion
Wheel/Tire advice - X post

Use 225/35/19 and 305/30/19 combo

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Reported fixes: 0
Unsuccessful attempts: 1
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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
you need to use 225/35/19 and 305/30/19 Combo.
Original post Read captured discussion
Wheel/Tire advice - X post

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6 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Rennlist: 1 discussions

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Generation: 20261027T165639Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I am putting Turbo II Factory 19" wheels and tires from a 997 on my 2002 996 C4S. Front is 235/35/19 ( 25.5 inches high)and rear is 305/30/19 (26.2 inches high) ..am I ok on the 2.7% % difference ( 26.2 divided by 25.5) of front and rear for my all wheel drive ? Thanks Also posted in Tire forum

POST 2Original post

Yes. Lots of turbo guys run that combo for year and years no issue. I run that combo now. The closer to the OEM size ratio the better but you won't run into any issues. When it comes time to replace tires go with a 245/35 front, it will drop the ratio to about 1% if that's something you're worried about. Better to be closer but don't lose any sleep over it. My car is lowered 1.1" on H&Rs, had to roll the rear fenders slightly to accommodate the 305/30, no issue on the fronts at all.

POST 3Original post

you need to use 225/35/19 and 305/30/19 Combo.

POST 4 / ORIGINAL POSTEROriginal post

Thanks !!!

POST 5Original post

Quotes source post: 11586410

Hi Zookie, sorry but that information is incorrect. Can you explain how going to a 225 & 305 combo which has almost a 4% differential (vs. the 2.8% in the 997 setup) is the correct combo? OP, the 997 runs 235/35-19 & 305/30-19 which is a 2.85% variance to the 996 tire sizes. This sizing will work as I have already said. If you change tires you need to go WIDER (not narrow as Zookie has stated) to a 245/35 front with the 305/30 rear. This is a VERY WELL documented combination for the AWD cars. This bring the differential between F&R down to 1.75% vs the 996 sizing. Either the 235 or 245 front will work with the 305 rear but NEVER a 225.

POST 6Original post

mmmmm you are right... I wonder what I compared before. never mind what I said

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