[Russ B]

I use a regular (3 wire) 10 SI, maybe a 60 amp unit. All parts stores have them, but most don’t carry the one wire version of the 10 SI. They are more reliable and easily wired up. If a store doesn’t have the exact replacement you can re-clock any of the alternators just by taking out the bolts holding the housing halves and twisting one half to the position you want. One wire alternators often need the engine revved up before they start to charge. The regular three wire chargers start based on the voltage at wherever the exciter wire is connected, usually at the ignition switch accessory position if you are using a typical aftermarket switch.