Okay, I have swapped several alternators around on my old yota's. What I have encountered is a no charge situation. What I found out was that on the toyota truck it ran through a charge relay and throught the gauge, I just happened to have a gauge that was not functional, therefore, no charge. Long story short, get yourself a gm one wire and bolt her on. If I remember correctly I didnt have to build a brack, the yota ones worked fine with slight modification.