I have a suggestion, why don't you gather some data and determine what is wrong before you start replacing things?
you can do a simple (and I mean simple!) voltage drop test and know which components need to be fixed.
I helped a guy out that had changed his battery, cables and starter. After changing it all out his car still started poorly. took me about 3 mins to find he was dropping 2.2 volts thur his main battery cutoff and another .5 volt from his ground.
If you don't know where your voltage loss is occurring you are guessing.
try it! you will be surprised how easy it is. (see my sig)
https://board.moparts.org/ubbthreads/ubbt...tml#Post2342153Joe
