(As copied from my thread on NASIOC)
Perhaps I'm not up on the latest ins and outs of doing a knuckle swap these days... apparently things have changed a bit since I did the swap on my WRX a few years back.
Now, I'm doing an STi knuckle swap into my SVX, and had to wait a week for some knuckles to come in from Japan because apparently all the stock in the US was spoken for.
When I ordered them, there was some discussion at the parts counter about getting '05 knuckles or '06/'07 knuckles. As far as I knew, they were all the same... but the newer P/N superseded the older one. I figured, if there was some minor difference, it was no difference to me.
Well, I got the new knuckles today, and there's a real difference, at least if you're planning on running some 332 or 328 StopTech brakes (the 355's probably fit?).
Here's what I'm talking about
:
New P/N on the left, older P/N on the right (sorry, I don't have the actual part numbers, I didn't write them down when I was at the dealer):
Notice the fatty chunk of metal added to the knuckle near the brake mounting holes. I have to guess this is to combat all the people whining about brake squeal... certainly better than gluing wheel weights to the calipers... but as you can see, it makes it impossible to mount up my StopTechs to these knuckles.
So now my questions:
Were the original '05 knuckles totally superseded by the new ones, thus making it impossible to get the old style, or can I return these knuckles and wait another 2 weeks for the next boat from Japan to arrive?
Has StopTech addressed their fitment issue meaning I can order a new set of brackets? Any chance they're kind enough to swap them out for free to those of us that have been racing on StopTechs for the last 5 years?
Is it safe just to clearance the bracket a little, or should I break out the grinder on the knuckle itself?