Hi folks, just picked up a '77 B6000 4wd and have a few questions. Did an oil change as this tractor has been sitting - took a full day of heat cycling/breaker bar/bolt extractor to remove oil strainer bolt -what a pita! I had to redress bolt with file and square as bolt extractor completely rounded bolt - toughest bolt to remove that I have experienced in over 20 years of wrenching -I hope the hydraulic side goes easier. Tomorrow, I will drain the transmission (clean filter) and will use a Kubota UDT equivalent as I have a FEL. Trans is milky from water intrusion (yes, torn boot) Looks like drains are in the rear inboard of each wheel, yes? Completely lower FEL to expel as much fluid from hydraulic rams for max drain? I am going to back tractor into barn where floor drops about 6 inches to encourage as much drain as possible. As fluid is quite milky, should I flush first with anything (after draining) or, just add fresh fluid and then drain again in summer on a hot day? Noticed that when I measured output on new battery it read 12.47 when running - shouldn't alternator be putting out over 13 or more volts when running? Light switch is missing (anyone recommend a good source for oem style replacement and would also like to add a key switch as PO wired in a simple off/on switch (probably lost key) I know I can get rattle can orange paint from Tractor Supply but what about the gear case blue gray color for the trans/engine/front diff etc - is there a known near match out there in Rustoleum land? Best source for parts for this little beast? Thanks so much!