Gas Tank Sending Unit
Short answer: You can tell without dropping the tank. Look at the fuel lines at the front-right of the tank: two lines = the two-tube unit (one fuel, one vapor return); one line = the one-tube unit.
Or check the fuel pump under the hood: three connections (carb, fuel from tank, vapor return) = the two-line sending unit; two connections = the one-line unit.
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Content last modified: June 13, 2026 at 10:06 am
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