1 Wire Alternator Options

no idea about OEM
But a denso mini alternator of a kubota digger and a bracket set from mancini does the job
and saves weight.
like a tiny birdcage alternator

36 amp 40 amp 70+ amp etc buy the smallest amps necessary

something like this but i'd look out for an OEM Kubota or denso labelled unit. used on loads of Japanese cars from 90s onwards but the V belt versions come on plant and machinery, cheaper belts easier maintenance.

Alternator Fits Kubota AVF-12534 VA-12534 10-12534 101211-8770 101211-8771 | eBay

disconnect and join together the wires at a 2 wire regulator to get a 12 volt feed to the unit and that's it.

there is a double lower lug mount version as well... not sure what its off

they do versions with the output stud off the side or out the back of the rear unit cap...

stud is output to battery
F/IG is 12 volt in
S is a sense wire connect to battery by its own wire (fused 7-8 amp). this is for the internal regulator measuring battery voltage direct from source, to cater for losses through bulkhead and ammeter route to battery of the main feed.
P is a pulse signal for an ECU it a rev counter feed for ECU charge control on the original truck the 12 V F wire also comes from the ECU
L is for light switched 12 Volt from loom through bulb to this connector light on when alternator fails or is standing still.

You will have IG/ F and output stud to B battery and a range of the others depending on vintage, that don't need to be connected. But sense is a nice thing to have if the route from alternator to battery is via the bulkhead connector and dash.

3 connectors
1) two spades IG/f and L
2) d shaped with 3 pins IG/F L and S
3) oval waterproof connector with 3 pins IG/F, P ,L

order specified on lable

pigtails available for splicing in to loom
check denso site for pin allocation

jones racing products and others do a range of pulleys that fit so you can change the gearing
but the standard one works fine

there are options...... Mopar guys happy to use denso mini starter maybe denso mini alternator is nearly appropriate ;)

based on the spares offered by some suppliers this alternator is the core of some aftermarket kits

Dave