Wheel Fitment question - 986 Forum - The Community for Porsche Boxster & Cayman Owners

clubhaven · 10-09-2023, 01:26 PM

Bought a 2nd wheel set of 4, 18" 10" ET 58 for rear and 18" 8 1/2" ET 52 for front. Was told they came off a 2000 986. Best I can figure is I will need a .25" set of spacers for the rear. Anyone with any experience this size wheels?

derekcohen · 10-25-2023, 08:06 AM

This is the best spacer calculator I have come across.

https://jr-wheels.com/et-calculator

Regards from Perth

Derek

The Radium King · 10-25-2023, 09:34 AM

with a 10" rear, 40 to 45 is a nice place to be, so think about a spacer around 15mm. 10mm would probably be ok. a lot depends on what tire you are running. also, your lug bolts long enough?

PLP · 10-26-2023, 07:56 AM

For the 18" at 10" width - I would first ask what tire you are getting and if you modified suspension.

It is not an easy answer as it may run inside or outside... or both.

Mine had 275 in the back and it would rub on the fender with 20 mm spacer, but only under heavy bump, normal driving was OK. Yet, I got rid of them (it was the previous owner who put them on).

Front was 235 and was OK.