Gas Charged Lift Support
I purchased two StrongArm 4304 gas charged lift supports from Canadian Tire. The packaging refers to avmind.com for technical details. amazon.ca describes the StrongArm 4304 as a "Chevrolet Venture Liftgate Lift Support 1997-04".
Using the avmind lookup for that model, returns the B4304 and the B95738. These don't map the the part numbers of their Standard Lift Supports or Standard Dampers, so it's not clear what ball joints will be required, but from inspection it appears to be the 10mm plastic ball socket connector.
Searching for strongarm ball stud kit reveals:
StrongArm Universal Lift Support Mounting Stud Kit
StrongArm Uinversal Lift Support Mounting Bracket
JR Products BR-1020 10mm Flat Gas Spring Mounting Bracket
JR Products BR-1060 10mm Angled Gas Spring Mounting Bracket
JR Products BR-12553 10mm Angled Gas Spring Mounting Bracket