Have a few transmissions kicking around so I made a comparison video.
I know I missed some stuff, like GL4, but there is some good info, especially identification.
If you wanted to donate I believe you can send funds to the email info in the flyer.
They did beat their goal and broke a few records with attendance for the play.
Here's a bit of video, was not a huge turnout but the cars were cool with a bit of variety.
The Energy Suspension poly mount bottom holes are slightly different than the Datsun mount. Nothing a little grinding can't fix.
The stock Datsun mounts are pretty durable in my experience, I usually recommend those.
Nothing wrong with the poly just a bit stiff.
that one uses poly bushings, but it is where I got the idea to upgrade and use thrust bearings.
I have finalized the design but want to run it before offering them.
That locking nut was the final piece to the puzzle.
imho idler arms always seem to be an afterthought on production cars.
The 620 stock design is terrible.