996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

question on tire size and transfer case...

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Old Apr 10, 2009 | 06:40 PM
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question on tire size and transfer case...

I am looking at going from stock wheels/tires to a 19" set up.

oem set up is fr 225/40/18 overall diameter of 25.08 in
rr 295/30/18 overall diameter of 24.96 in difference is .12

new set up is fr 235/35/19 overall diameter of 25.47 in
rr 315/25/19 overall diameter of 25.20 in difference is .27

My concern is that there is a bigger difference in overall diameter .27 new set up to the oem set up of .12 front to rear. Is this going to damage the transfer case or is the difference to small to worry about???
 
Old Apr 10, 2009 | 06:59 PM
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Originally Posted by nvno1
I am looking at going from stock wheels/tires to a 19" set up.

oem set up is fr 225/40/18 overall diameter of 25.08 in
rr 295/30/18 overall diameter of 24.96 in difference is .12

new set up is fr 235/35/19 overall diameter of 25.47 in
rr 315/25/19 overall diameter of 25.20 in difference is .27

My concern is that there is a bigger difference in overall diameter .27 new set up to the oem set up of .12 front to rear. Is this going to damage the transfer case or is the difference to small to worry about???
Most people run 235/35/19 315/25/19 with 19"s. The problem is when people start to run a 305/30/19 for the meatier sidewall.

I ran 245/35/19, 305/30/19, with no problems besides minor rubbing...
 
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