So 3 years ago my step grandpa passed away and my step dad got his truck it's an 85 F250 with a 4 speed manual and a 351 it ran okay before and needed some brake work and needed some carburetor work but all the major stuff was fun. It's definitely an old beater Farm River truck. my step dad drove it to his house and parked it on his property and it set for 3 years and now he told me that I could have it if I got it running and could get it off of his property. I went to have a look at it put a fresh battery in it and all it does is the starter clicks. I try to turn the crankshaft and the engine will not turn all the accessories are free. I use some deep Creep by seafoam through the spark plug holes and that didn't seem to work immediately I'm letting it sit for a couple days now with deep creep in there and transmission fluid I'm a little surprised that seized up in only three years. is there anything more that I can do that I haven't already mentioned that doesn't involve major surgery. Thanks everybody for the help. My grandpa Jack loved this truck so it would mean the world to me to get it going again. It's definitely a beater floorboards are rusted and I need to repair them need some brake work needs carburetor work but overall it would be a very good beater truck if I can get it to run.