I called them when I was looking to buy a remanufactured 4.7 for my 2004 Dakota. The guy I talked to acted like he didn't want to answer any of my questions about their processes or whether they did any upgrades to alleviate any of the known problems of those engines. He didn't seem to care whether they got my business or not, so.....they didn't! I bought a nice 4.7 from Powertrain Engines, and the owner answered all of my questions and was interested in helping me. I have been very happy with the motor I got from them and put in the Dakota. I don't know that they would have anything for Ken, the OP here, unless he bought a 318 for a late 80's D100 and swapped it in.
@Ken71Twister , check the VIN pad on your block and see if it is the numbers matching motor for your car. If it is, get that motor rebuilt by that machine shop suggested above.