GT3 wheels for 996
Discussion
Does anyone know the correct size for GT3 wheels for a 99 996? I am looking at a pair on ebay which have 7.5J fronts. Listed as follows:
FRONT: 7 1/2J X 18 ET50 RT139
REAR: 10J X 18 ET65 RT140
Because its Bank Holiday I can't speak to anyone at Porsche to get the correct size. Scouring the web looks like the GT3 had 8.0J fronts. Design 911 do replicas at 8.5J fronts. All very confusing. OOI has anyone tried the Design 911 ones? And if so whats the quality like?
FRONT: 7 1/2J X 18 ET50 RT139
REAR: 10J X 18 ET65 RT140
Because its Bank Holiday I can't speak to anyone at Porsche to get the correct size. Scouring the web looks like the GT3 had 8.0J fronts. Design 911 do replicas at 8.5J fronts. All very confusing. OOI has anyone tried the Design 911 ones? And if so whats the quality like?
The proper GT3 wheels are 18"x10" 65mm offset and 18"x8" 52mm offsets - smaller wheels were fitted as an option on Boxsters and some 996's. I have been told they are two piece and been told they are three piece, made for Porsche by BBS.
A lot of the independant sellers deal in genuine wheels, Jasmine for one, but there are some single piece examples about.
A lot of the independant sellers deal in genuine wheels, Jasmine for one, but there are some single piece examples about.
mookle234 said:
Does any 996 owners on here have 7.5J fronts? Would love to see a snap of them on the car if so...
I had 7.5J fronts on the GT3 when I first bought my car. A photo of them is below. As you can see, they appear no different to the 8J fronts on first glance.
But I have since changed them to the correct 8J ET52 fronts for correctness/safety/etc and to be able to run slightly wider front tyres (235) which would otherwise not fit on the 7.5.

Make sure you get rear wheels with an et65 off set, as Boxster run circa et48 (too low )
All Boxster & 996 fronts will swap as they all use et52
Note; for all 4wd cars ( carrera 4, 996 turbo etc ) you must run the recomended tyre size that porsche list as an option for your car ( not the model they came off ),
GT2 & GT3 are 2wd cars so the tyre sizes may not be correct for say a C4..??!!
All Boxster & 996 fronts will swap as they all use et52
Note; for all 4wd cars ( carrera 4, 996 turbo etc ) you must run the recomended tyre size that porsche list as an option for your car ( not the model they came off ),
GT2 & GT3 are 2wd cars so the tyre sizes may not be correct for say a C4..??!!
Cheers guys,
Porsch-apart want nearly £1800 with new tyres for a used set. Jasmine ony have the 7.5's but they'll do them for several hundred pounds cheaper tho'. I want the right ones but if there is no real difference in looks or performance, perhaps the 7.5's are the way to go. BTW this is the car I am going for. It currently has 19's on. I am not that keen. Anyone id the rims?
www.pistonheads.com/sales/64995.htm
Porsch-apart want nearly £1800 with new tyres for a used set. Jasmine ony have the 7.5's but they'll do them for several hundred pounds cheaper tho'. I want the right ones but if there is no real difference in looks or performance, perhaps the 7.5's are the way to go. BTW this is the car I am going for. It currently has 19's on. I am not that keen. Anyone id the rims?
www.pistonheads.com/sales/64995.htm
i have a brand new set of gt3 alloys (from my gt3 so im guessing their OE) with unused pirrelli tyres on them if anyone wants to make me an offer. theyre currently making my office look pretty, but im sure theyd look ok on a car too. y'know, if you like that sort of thing.
be a shame to spoil the look of my office though: helps me not do any work.
be a shame to spoil the look of my office though: helps me not do any work.
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