Not sure if you need any info on this, or if I’m too late in the process, but I bought these parts to help with the fan connections:
ACDelco GM Original Equipment...
https://www.amazon.com/dp/B0055AMAWQ?ref=ppx_pop_mob_ap_share
Can’t seem to find the pins at the moment.. I’ll update if I can find them. That connector was a great find. Was a PITA figuring out the correct one.
I have these in my history, but I know I had found the sealed ones, so don’t believe I used any of these..
Delphi Micro-Pack 100W Series Female Unsealed Terminal 12084912 25 PCS
https://a.co/d/hVDrTjs