Got a new Napa heavy duty fan clutch part # 271301 or Hayden 2797 which i will not use still in the box paid $64.00 for it,i just mount it but i never used it, will sell for $45 shipped.
I`m not 100% sure if its the "correct"one but i know it fits,alot of the buick guys with `70 GS`s here on the board including LARRY70GS aka the wizard is running it with positive outcome on cooling. Thanks