Thanks Captain. Been there and many Oil & Trans lengths are missing for the 61-66 Birds . Since Oil and Transmission levels are crucial, I was hoping someone would see this thread and we could get it in print for all to see. I know there are 2 oil dipstick lengths on the 63 Bird w/ 390 CuIn. With and without Air Conditioning have 2 different lengths. Am particularily interested if Trans dipstick lengths are different on the 65 w/ Cruise-o-matic and the 66 Bird w/ C6 Trans. I rebuilt a 63 Bird w/390 once because it was knocking like all get out. Come to find out engine had the wrong dipstick and the mechanic told me I had 7 qts of oil in it. I didn't quite believe him the oil would cause the knocking. Since I already had new .0010 over crank, Main & rod bearings, lifters , oil pump , water pump etc I went ahead and put all the new stuff in the engine. All that because dipstick was wrong !