Funny, I've been working on something like this for about 4 years now. I think I've finally got it.....now I want to go back to the toyota alt! I took the stock bracket and measured from the milled surface on the front of the factory (cast?) bracket to the center of the pulley on the factory alt (installed to bracket, of course). Then I put the toyota pulley on the gm alt, and measured from the center of the pulley to the front of the mounting hole and did the math. I think I ended up using a piece of 3/8 angle to bolt to the face of the toyota bracket, and went from there. By using the exsisting angle of the milled face of the bracket, it had to line up w/ the belt angle, providing all the rest of the ears/ welds were square and plumb to the milled face of the alt bracket. I did not know that the stock bracket was weldable. I thought it was cast and not bondable to extruded (I'm just wrong, I'm sure). I didn't like how high the thing sat in its cradle, so I cut the last ear off the factory bracket to buy two inches- wish I hadn't now. My only problem w/ the whole idea, is that for 3 different gm alts, I have a slow leak of juice- almost certain it's the 1 wire diode-current solution, disconnect battery EVERYWHERE! Long term solution- other than go back to stock- is to add in line switch from alt to ammeter. Jury is still out on my dilema, but your creation sure looks great! good work.
