The alternator on the 153 in my old CJ2 has given it up after many years. It's a regular 3 wire GM from the 70's. I thinking of replacing it with a higher amp output alternator due to the electric winch which can draw 200 amps under load, and maybe going to a marine deep cycle battery at the same time.
Is there any downside to that thought? Harder to spin? Over charges something? Battery life? I'm only working with about 90 hp here and I really don't have much of any running electrical load, but the winch can draw the battery down in one minute and I don't really have anywhere to put a second battery. I don't use the winch often, but when I need it, I may really need it.
The stock alternator produces 63 amps. I see alternators that would fit that make 140 amp or even 200 amps. Any advice?
