Alternator Amperage Question

Might as well put the biggest one you can on it. Really won't hurt anything. I have a Powermaster 60 amp on mine and it works great.

60 A shouldn't threaten your wiring if it is pristine. Most aren't,

Maybe, maybe not

Please READ this article

http://www.madelectrical.com/electricaltech/amp-gauges.shtml

Even if you do not perform this mod, it points up the pitfalls and whys of electrical failures in these systems.

AND Ma KNEW the wiring was marginal. 60-65A optional alternators DID NOT USE the usual factory wiring. Google up "fleet, taxi" wiring some time.