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I'd like to find out exactly where the differences in the track come from as well. Subframes?
From what I've read, LCAs are all the same dimension-wise with the exception of the Cup inner bearings which are approx. 17mm wider than the standard GT2/3 inner bearings. But even the 997 Cup outer sections are the same length as the 996 GT3's.
The 997 GT3 outer sections are more expensive than the 996 GT3 pieces too. Why? Cup outers have replacable ball joints, but the 996 and 7 GT3 pieces are supposedly the same except for the castings.
I would imagine they are. I run the PMNA 997RSR LCAs. Don't see why the street arms wouldn't work. PMNA sells both the short and "long" inner monoball joints. I run the short ones in the rear. If you need more that 3 deg off camber, you can run the short mono ***** with a bunch of shims or the long ones without shims. I run the fronts with 13mm of shims per side for -3.5 camber and the rears with a single 1mm shim for for -2.5 camber.
Last edited by pwdrhound; Apr 4, 2016 at 05:50 PM.
Is it even possible to run long inner bearings in the rear without encountering CV joint problems?
With my standard offset/size 7GT2 wheels and tires, I have 20+mm to the fender lip on front and rear at stock (street) camber settings. I would be really interested in finding out where the track width differences between the 6 and 7 come from.
Below is a picture of some 996 and 996 lower control arms. Not sure what version, but you can see the 997 versions are not longer than the 996 version. The 996 versions have RF and LF written on them. My guess is the wheel carrier is different.
The wheel carriers are def different. But I don't think that the track width difference is in the carriers.
Pwdrhound might be able to add some insight here. He's running 997 hubs, maybe he's looked at the carriers as well.
There is also a guy running a wild pushrod suspension on a 996. He is planning on swapping to 2010> 7GT2/3RS front uprights. The conversion is being done at bbi. Might give them a call and see what I can find out.
I am going to guess that the difference is in the subframes (which are different too).
Subframes and wheel carriers are different on the 996 and 997. Hubs are the same. Frankly I never looked at the difference in the rear track width, didn't even know there was one. I'm assuming the 997 is a little wider then?
