Okay so I just bought this 05 Durango with the 4.7l AWD for $300 because the guy I bought it from said the transmission was bad. Well on my way home with it I could drive it no problem and run 70 on the highway but I noticed when I was running 70 that my rpms where clear up by 3k so I noticed my overdrive wasn’t engaging. When I got it home I hooked up my code reader and it pulled p0700 and p0750 which is shift solinoid A. I was just wondering if anyone could point me towards the right one to replace and how to replace it