Hello.
I'd either try a Versailles prop valve, or better yet, an adjustable valve from SSBC or Wildwood. As you look at the center section from the yoke end, the fill plug should be on the right side just above the center line. It sits pretty flush and has a recessed 3/8 square drive. Have you removed the parking brake stuff which is attached to the pistons inside the calipers? Good luck
'66 A-code Fastback (therapy)
'89 Town Car (SWMBO D'driver)
'87 Caprice (as req'd by Hagerty)
I'd either try a Versailles prop valve, or better yet, an adjustable valve from SSBC or Wildwood. As you look at the center section from the yoke end, the fill plug should be on the right side just above the center line. It sits pretty flush and has a recessed 3/8 square drive. Have you removed the parking brake stuff which is attached to the pistons inside the calipers? Good luck
'66 A-code Fastback (therapy)
'89 Town Car (SWMBO D'driver)
'87 Caprice (as req'd by Hagerty)