That's almost a half of a century old. I doubt you'll find a website that has any information. Is your transmission guy asking about specs or are you just curious in case the question comes up? Is he a transmission guy or just a general mechanic? I would think a transmission guy would just rebuild the paper and rubber parts and replace any hard parts that need it. A general mechanic would probably want to just buy and install a reman transmission. Either way I can't imagine there being too many options or variances on a 1979 transmission.
