I'm just curious on what you think a general price to rebuild the transmission on my 1986 Toyota pickup. It's a manual 5 speed 4wd. I know it needs it, because of the humming sounds in 3,5 gear and 244,000 miles. Also it won't stay in first even if I hold it. Just slips out and tries to grind. Oh, does anyone know if 1,3,5 are connected in some way? They seem to be worse than 2,4 which are fine. Thanks