Hi,I have up for auction today a GATES Oil Filler Cap #31066 (3" Oil Filler Cap (1 3/16" x 1" Cam Twist).Gates oil caps are made of heavy gauge steel or durable plastic for long and dependable service life.Caps offer excellent protection against corrosion and under hood heat.This cap is new and fit`s this model and maybe others:1970 : CADILLAC : FLEETWOOD : 7.7L 472 cubic inch V8 Thanks for looking & Have a great eBay day!