bobbigham

I have searched the site, but never find quite what I need, or maybe just not the math whiz I need to be to figure out wheel fitment.

The car is a 1995 968 Cab (white/blue/6 spd).

I want to swap out a set of cheaper style 17" turbo twist wheels and replace them with either:

1) 2001 17" Boxster 5 spoke sport wheels (excellent shape and I have a set sitting in the garage all cleaned up and ready to mount; or
2) install a set of 17" cup style porsche wheels that came as an original option set on the car, however they would need to be refinished.

The Boxster wheels are:
front: 7Jx17 with offset ET 55;
rear 8.5Jx17 with offset ET 48

The cup wheels are
front 7.5Jx17 with ET 65 (part 993.362.124.05);
rear 9Jx17 with ET 55 (part 993.362.128.00)

My questions are:
1) Will the Boxster wheels fit without spacers?;
2)with these sizes and offsets, would the Boxster wheels fill out the wheel well area about the same as the cups wheels (I know the cup wheels are a total of 1/2 wider, but not sure of the effect of the offsets);
3) will the current front tires 225/45zr17 fit the boxster rims (the old front tire size on the Boxster wheels was a 205/50zr17)?

Any help, advice or suggestions is welcome.
(I also posted on 968 and general -wheel/tires section of forum)
Thanks

joes

There is really only early offsets and late (which is your case). All late offset wheels will fit a late offset car. The offset numbers you are seeing on the wheels change relative to the width of the wheel. You may need some spacing to acheive the "desired" look. That is the short answer.

racer

1) Yes
2) subjective.. you may want a small spacer to push out the wheels
3) 225's will fit on a 7. They may have more sidewall buldge than the 205s. Tire shop might sweat a bit more getting them on the rim and may charge more for "low profile tires".

bobbigham

Thanks for the information.
I guess I just need to decide if I want to refinish the cup wheels which really look good on the 968, but the boxster sports may be a unique and nice look as well.

Charlie

I have a set of 17" Boxster wheels that I tried on my 951. The front wheels hit the bearing cap. You might want to try and mount one of the fronts and see if you have the same problem. I might could make them fit but will probably put them on my Boxster.

Tom R.

This may help a little bit.
http://marksink.com/tire_wheel_offset/offset.html