Quote:
Originally Posted by Luns
Thanks for raising this point. I believe you're correct, but confirming this requires catching details that aren't immediately obvious.
The parts lookup shows that there are two supersessions for the current part number, so it's easy to guess that this means the BRZ used two different earlier revisions before landing at the current part. However, this is not the case.
The key is to not just look up the current part number, but also explicitly check the supersessions. It turns out the current part number supersedes parts that go all the way back to 1997. The two superseded part numbers cover cars up to 1998 and 2009 respectively and were already out of the picture before our twins.
https://parts.subaru.com/p/49239181/30530aa020.html
https://parts.subaru.com/p/49239182/30530AA021.html
Same with the pivot ball; the one superseded part number went up to 2009, same as the second clutch fork.
https://parts.subaru.com/p/49239206/30537AA060.html
What I'm intrigued with at this point, and don't have an answer for, is where the WRX fork fits into all of this.
https://www.subarupartwholesale.com/...0531AA180.html
While this doesn't directly cross-reference to the BRZ, some of the other vehicles listed in the applications also show up in the application list for our fork. The non-WRX, non-Turbo cars listed (Impreza, Outback 2.5L 5MT for 08-09) for the WRX's fork, appear to also show up in the application list for the BRZ fork.
Searching by application for say an 08 Impreza, both the WRX and BRZ clutch forks show up.
https://www.subarupartwholesale.com/...12-100-01.html
This suggests that the WRX clutch fork is actually interchangeable with the BRZ part. |
I think you're trying to read too much into this and getting yourself too far into the weeds. It isn't uncommon to have a part that existed before a car and it also isn't uncommon for a supersession to be just a part number change. I'm not saying that this is the case here.
All the BRZs and 86s right now use the same basic transmission. A few internal parts are different, but the transmission packaging is the same.
Taking the Impreza you mention, did you actually look at the parts diagram and see that they list both clutch forks, but also 2 different pressure plates, 2 different clutch release bearings and 2 different diameter slave cylinders?