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Pretty simple. The only issues were getting the belt/pulley to line up and kicking the bottom of the alternator out so it doesn't hit the oem bracket. I've seen other write ups where they cut the bracket to make it fit, but I didn't want to do that. The last picture is from the m35a2 just to...

What kind of alt is that?

If you use the 21si alternator, then it is just positive to positive and negative to negative. The exiter wire is not used on this particular alternator. It will not affect anything and it is self regulated at 27.4 volts. Edit: I should also add that if you are using a battery disconnect for...

Correct. The lower ear has to be mounted the way it is therefore the upper ear has to be on that side of the adjustment bracket. I'm not really worried about the clearance because A, the fan doesn't flex and B, even if it did flex it would move away from the nut since it is pulling air not...

Oh and also 45" belts. There might be enough adjustment for 44's but I'm not sure.

Delco 21-si. Also, you'll need one of these "2 groove diesel truck alternator pulley 3-1/8 dia. 7/8 bore" Edit: Also I should probably note that the clearance between the fan and shaft nut is only about a quarter of an inch. You can maximize this distance by loosening the stock generator...

This morning around 4:30 while out with the dog I smelled the faint but unmistakable smell of electrical burning. I walked by the deuce and caught a strong whiff. I disconnected the batteries and started looking in the cab and under the hood. Yup, you guessed it, stupid Generator. Lucky it...