That's a really nice truck for it age. Is that a 25? or 272 engine? Ahh the memories of working on and racing my old Y Block '54 Crestliner with a 292 PI engine, 26 trannies and 2 difs in one year! Painful... Those Y Blocks will last forever with just minimal care and from the looks of your truck it's been very well cared for. Good luck with the sale . Someone will get a real gem when they have it all done. The Chrome grill alone is worth a bunch...