I'm curious how much block grinding was required for your install. I remember reading somewhere some years XJ require more grinding than others?
Here are some pics to help determine the difference between a small frame Denso (stock oe fit for Denso alts on the XJ) and the large frame Densos
which are usually 136+ amps.
Small Frame Denso case markings
Large Frame Denso case markings
Most all HO's use a large frame Denso however there is a method to add another 40 to 50 amps to a small frame Denso, by installing an upgraded HD stator.
https://alternatorstarterrebuildkits.com/product/denso-small-frame-high-amp-upgrade/
Most re builders of higher output alts prefer to work with the large case Denso, but it's possibly to increase the output rating of a stock or aftermarket 90 and 117 amp small case Densos installed in XJ's.
The above upgrade kit is suppose to be good for at idle output. increasing output by as much as ~50 amps.
Here's a link explaining the different type of field terminal connections.
http://alternatorrebuildkits.com/jeep-denso-alternator-rebuild-kit/
I have seen only one plug for the pin type that can be spliced into the wiring harness.
The other method used to adapt different field terminal connections is to swap out the alternator's terminal block.
This site has some information on various alternator parts and kits. Enter a part number or vehicle make, model and year. Should provide a list of available alternator parts at least for some years and part numbers.
https://www.aspwholesale.com/
Some kits and part found from an eBay seller, includes some field terminal blocks for changing to another connector.
http://www.ebay.com/itm/181353389019?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
Information found about Bridge Rectifiers for the XJ with Densos.
99-00 rectifier - INR403P with grounding strap
92-98 rectifier - INR729P without grounding strap
2001 rectifier - INR739
Specifications I have:
INR403P = 8 x 40 amp diodes
INR729P = 8 x 40 amp or 8 x 50 amp diodes
INR739 = 8 x 50 amp diodes