Keep putting money in but not fixed yet

Also the fuel gauge wont work correctly after it gets to have way acts like it gets stuck between half and a quarter.

I cant remember what the code was but it was something about camshaft and crankshaft sensor not coordinated together or something like that so replaced both camshaft sensor and pickup coil, someone told me to try replacing fuel pump next. I don't know what to do the diagnostic test don't really show whats wrong, im just wanting to know what to try next.

And yes check engine light has been on the whole time.

I believe it was p1345

Can that cause it to mini backfire and what about the fuel gauge not working correctly

Also do I really have to have a shop install the distributor because somebody said they have to use a computer to relearn the timing

Would the gear being worn make it spudder also when doing over 45, sorry asking so much but I wont to make sure I can get this truck fixed.

Ty for your time ill do the distributor first is it possible for me to put it in by myself or do I have to have a shop do it, I know with old vehicles u can do it ur self.

Ty for your time ill see if it fixes ill let you know.