So I have a C6 Z06 T56 tranny (TUET 4197 with 2.66 1st gear ratio) that I am working on.

I am trying to replace one of the 1-2 blocker rings, but the pictures (bottom two) for the PN that I need to order look a little different from the actual blockers (top two pics) in the tranny.

The VIN for the Vette that the tranny is out of is 1G1YY26E265131171
The GM part number for this blocker is 12455009
(also 89059745 or tremec 1386-091-008-C)


The pics for PN 12455009 show the dog teeth going all the way around, but the blockers for both this tranny and another 2006 C6Z / TUET4197 tranny that I have apart are grouped into three sets of dog teeth, going around the ring. The 3-4 blockers look like this too.

Just wondering if there is a compatibility issue as these are pretty expensive to order if it is wrong.