Replaced all of the belts.
New thermostat and hoses.
Power steering pressure line.
Fuel filter.
Cap, rotor, coil, control module, plugs, and plug wires.
For 350 dollars my Caprice Wagon is probably one of the best of the last "big cars".
No rust, power everything (and works too).
The Oldsmobile 307 and 200 4r transmission are probably the weak point in the car. It's severely under powered and reflects this in 7-10 miles per gallon fuel consumption.
Although not a Dodge Diplomat, I'll say that this car provides Cadillac comfort and reliability that you can only get in a Chevrolet.
Dodge Diplomat? What?? I can't remember the last time I seen one of those driving around, but I still see Caprices everywhere.. tells you something I think :P.
Wasn't the Caprice more of a car than the Diplomat when it was new as well? It's certainly bigger and roomier.