Dr. Dave- Prepare yourself for the fleecing. Here is some info that could help. The Weldon Pump is a very nice unit. Unfortunately with the FAA's wisdom it isn't stc'ed for your A/C. Spoke to the Weldon people about this subject. They start laughing when the question is asked . Why is this pump only STC for the E thru H models. The pumps mount in a different place but they are the same pump. The FAA would not STC it for the early planes. So Dr. you now become a prime candidate for a fleecing by the rebuilders. The seal kit itself is in excess of $350.00. Then you get to pay the rebuilders price for a rebuild. Good luck Dr. Dave.
Weldon Pump-Yours is the 18000-B in Weldons pump which crosses to a (Dukes/Fleecing 4140-00-15)-
http://www.2aps.com/Fuel%20Pumps.htm
STC-
http://www.airweb.faa.gov/Regulatory...A?OpenDocument
Fleecer-
http://www.mcssl.com/store/cjaviatio...140-00-15-pump