THIS EXTREMELY RARE AIRSTREAM 310 MOTORHOME HAS THE CLASSIC 7.3 FORD INTERNATIONAL DIESEL ENGINE MATED TO A 4-SPEED ALLISON TRANSMISSION AND GETS AN IMPRESSIVE 12-14 MPG! THE DIESEL ENGINE/TRANNY COMBO WAS INSTALLED 15 YEARS AGO (replacing the stock gas Chevy 454) AND ONLY HAS 32,000 MILES ON IT. THIS $30,000 UPGRADE, combined with the overall good condition both inside and out of this classic, handsome coach, clearly lifts this Airstream above the $12K or $13K pricing range, so please be willing to spend more if you are interested in purchasing...Please note: both engine and tranny were brand new at the time of the conversion; they were not pulled out of some pick-up. We have had a Ford diesel mechanic recently check this motorhome and he can attest that it is ready for a long trip, is in good shape, and has an impressive, professional diesel conversion that remains functioning perfectly.. (The generator has a separate gas tank; this is the orginal gas 6.5K Onan generator. A FULL...more