1976 Cadillac Fleetwood Brougham Cold Start

Ok So back in Winter of 2020 I got a free car from my grandpa after he died the car sat for 6 to 7 years and was neglected and never cared for by him. we eventually decided to get some work done on it to get it roadworthy unfortunately as son as we got home the new brakes failed for the 3rd time and we discovered the rear end frame on the car was shot so I made a choice to sell the car to a online auction house