1320nut

For The Life Of Me, I Cant Figure This Out, It Came Off My Pedal Support, Or Firewall, From My 1969 Mach 1 4 Speed Car. I Have Only One Mustang, And It Was In The Bag Of Parts, When I Disassembled It. So I Know It Goes To My Car? I Have Asked This Question Before, And No Answers, On Other Forums. Any Help Here Would Be Appreciated. Thanks

Sorry Forgot To Post The Price And Location

(1) used 351 2V long block engine came out running complete from carburetor to oil pan with exhaust manifolds $300.00 (1) used 351 4V standard bore cylinder block 4.00 4V closed chamber cylinder heads (quench heads) standard size crank $500.00 Will Sell Separately: Location Fairfield Ca 94534