Upgrading the alternator

[Gareth]

He showed me, you should set both alternators on a flat surface, with the pulley down. Then compare or measure the distance from the mounting to the flat surface. If it is exactly equal, the belt will line up.
The guy put the pulley I found, on a lathe, and corrected it for me.

Ah yes, I just discovered that too. The length of the pulley shaft seems to be different, so the backside of the Toyota pulley would also need to be machined down a bit.

It's too bad I cut my belt getting the alternator out. It had worn down to 3 ribs. It would have made a great test belt for 3 ribs!

The good news is that I've figured out how to get the alternator out the top side on a 4WD with just the overflow tank and bracket, lower fan shroud and the alternator tightening adjustment bolt removed (it's still a tight squeeze!).

I also learned that the Bosch alternator is 95 amp, while the Denso is 105 amp. Makes me wonder if there are more differences to the Denso alt, but a different pulley and shaft diameter/length would seem like weird changes for supposedly interchangeable alternators.