240D Differential Gear Ratio: 3.69:1
300D Non-Turbo Differential Gear Ratio: 3.46:1
300D Turbo Differential Gear Ratio (up through 1984): 3.07:1
300D Turbo Differential Gear Ratio (in 1985): 2.88:1

IIRC, the four-speed first gears ranged from 3.90:1 to 3.96:1. I can't remember 2nd and 3rd off the top of my head, but 4th is 1:1 in both the 4 and 5 speeds and the 717.400 5-speed (the one you have) has an 0.81:1 5th.

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"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."