Dump of other notes:
1st gen lowering springs do not work on the 22+ shocks (specifically the rear spring).
You can probably swap complete 1st gen damper/spring/tops assemblies with 2nd gen and vice versa (untested).
We are developing new springs for the new car.
Coilovers are more straightforward and will swap without issue at least in terms of fitment.
The rear upper shock mount is different...appears to be harder rubber but not sure. SHOULD swap over fine, unclear if there is a stack height difference.
All new RCE parts are being developed for new and old cars concurrently (except springs as mentioned).
Thread on 1st vs 2nd gen parts compatibility
https://www.ft86club.com/forums/showthread.php?t=147698
Tech background stuff
Basics on motion ratios:
https://www.instagram.com/p/B3cDzqOD..._web_copy_link
Basics on suspension frequencies:
https://www.instagram.com/p/B6TKG6Un..._web_copy_link
Basics on shock dynos:
https://www.instagram.com/p/CJd5GH4H..._web_copy_link