A bit of something must have been homogenized into the oil based on the pattern of the burs, but it doesn't seem horrible to me. I think the gears look OK based on the amount of original cutter marks remaining and lack of an odd wear pattern but the bur edges need to be cleaned up.
Under dash pull lever? The pawl that engages the notches is stuck or the little spring that puts tension on the pawl is kaput. Spray some light oil to free the stuck pawl and see if it is under any tension and go from there. It's a simple little mechanism, not much to it.
Either the bolts were a tick too long or the lock washers were missing--probably got mixed up during a previous rebuild--and they bottomed out in the housing and snapped when wrenching them in. Get the dual seal housing--good investment--and then fix the original for a spare. Drill a pilot...
I'm embarrassed to admit it now but many, many years ago I actually had to do the same thing as you on my 1970 and I made a rollbar-like hoop out of pvc conduit fitted to the b-piller's holes to support the bikini top. Obviously it's not crash proof but when you're young and invincible it...
Seat mods have large safety implications to be taken into account. Have you considered adding plates on the underside of the floor to run the bolts thru? Those bolts with washes will rip right thru the sheet metal floor if there is a solid hit. Seats, kids and all will fly forward. Given the...
Not sure if this helps you, but this is an issue that others might need to be aware of. On my GM power steering set up the tie rod is tight left to right, but the drag link from the pitman arm to the tie rod twists a bit front to back when going from left to right which causes slop in the...