Alternator swap

[Christopher Duma]

I have a 1990 F-250 w/7.3 IDI. I recently acquired a Leece-Neville 165 amp internally regulated alternator from a 91 F-350 Ambulance. I'd like to install it in place of my existing 100 amp externally regulated Ford alternator. Does anyone know how I would wire this up.

 

[Garbage_Mechan]

I think there is reference to it on my manuals. I’ll look soon.
But meantime I want to talk you out of it. Those old Leece units were rugged but not very efficient. They don’t charge well at low rpms. The 3G alternator from a Taurus is readily available inexpensive and out charges the old Leece.

 

[IDIBRONCO]

Mine isn't from a Taurus, but I also recommend the 3G swap. I love mine.

 

[Garbage_Mechan]

Still need a diagram or did you go 3g?

 

[Greg t]

Ebay you can find a Wireing harness from painless wireing up grade comes complete with blade fuse and elmanates all the external regulated problems and easy to follow instructions 30 job the kits are available