Hollow spoke Turbo 1wheels

[DanIelT]

Has anyone seen a rear wheel with two sets of numbers on the back?

993.362.138.00 9jx18-ET52

993.362.140.01. 10jx18-ET65

These are wheels I have found on CL, and they are supposedly stamped with both sets of numbers.

Waiting for pics of the backsides to confirm.

Anyone seen this before?

Thanks

[Loren]

That is normal as the other numbers (besides the part numbers) are the size and wheel offset.

These are Turbo I Porsche 18" wheels.

The rear wheels at 10 x 18 65 mm offset are fine.

The front wheels are actually Boxster rear wheels 9 x 18 x 52 mm offset.

These may fit - but a 9" wheel is likely going to be a problem in the front. The stock wheel width in the front is 7.5 inches. I have seen people use up to 8.5 inches wheels in front with some rubbing on tight radius turns. This may be worse with some tire brands than others. A safer bet is a 8" front wheel and up to a 245 x 18 tire.

[DanIelT]

What I was trying to say that both of those numbers are supposedly on the back of the rear wheels.

That doesn't make any sense...

I am still waiting for clear pics to confirm. Very strange

[Loren]

9 x 18 are too narrow for a 996. Ask me how I know - I tried it once. The car could be spun on a low turn if you hit the gas too early.

I really don't think you want the 9 x 18 on the rear of a 996.

If you drop down to 17 inch wheels those would be okay for winter driving. Porsche specs 7 x 17 offset 55 mm for fronts and 9 x 17 offset 55 for the rears for winter/chain use.

The numbers I am giving you come straight from the Porsche TSB "Summer Wheels and Tires" - TSBs are available here to all Contributing Members.

[wyovino]

Loren, I don't mean to hijack, but I have the same wheels that were a factory option on my MY 2000 C2 Cab. My front wheels are the same as above (7.5x18- ET50), but my rear wheels are 9x18ET 52, which you indicated were Boxster wheels. The rear tire size is 265/35 ZR18, which matches the TSB you alluded to. The TSB doesn't show an 18 inch wheel of 9 inches, so I'm kind of confused about this. My car had one previous owner, who was meticulous about having it dealer maintained, so I doubt that she would have changed the wheels on her own. Is my set-up safe - 10 inch tires on 9 inch wheels? How can I find out more about this, considering I firmly believe that these were the original wheels that came from the factory?

[DanIelT]

What I am trying to convey, is that I have found rear wheels that have both of the numbers on the back.

They are stamped with both the 9" and 10" markings. On the same wheel

[Loren]

Best to have someone measure them.