Many thanks to Jim Lane et al for their great article and ideas on the Leece-Neville alternator.

I went for a better, worse or sideways idea with a different approach. Time will tell. I did this on my '96 with A/C and auto transmission.

I installed a Delco 28SI alternator with an adapter bracket I made in my shop. I found a vendor on eBay and contacted them on the phone. I got their 240 amp version of Delco's stock 200 amp 28SI. It puts out about 120 amps at idle.

The adapter fastens to the original lower pivot and the top 2 A/C compressor bolts, so it's very well braced. I put the new lower pivot on the bracket a little over 2" out from the original and bored it to the full 1/2" that matched the alternator holes. This pivot is set back from the original by 3/16" to align the pulleys. Currently, I reused the stock top bracket to temporarily get the truck going for some errands, but I plan on making a new top bracket, too.

I was trying to set this up so I wouldn't need any modifications to the stock mounts or the alternator, so replacement would be an unbolt the old, bolt up the new. I did have to reroute the one coolant hose to the block from the trans cooler. I plan on replacing them all with SS tubing this summer, so it will be a permanent fix then. The air elbow to the turbo is touching the back of the the alternator too, so it will need a piece of padding until I change routing.

Another reason for this approach is because I may add a hydraulic pump above the alternator by swinging it out away from the block.

Regards,
Miles