http://www.lostjeeps.com/forum/phpBB...p?f=98&t=50940
kapalczynski from Lostjeeps used to make a custom thermostat housing by taking your old unit and machining a part on so it was replaceable.
kapalczynski no longer takes orders and does not respond to emails (I tried without luck). He has provided all the details so his design can be replicated.
There is a person in Canada (can be found on Lostjeeps) that
manufactures a very nice replacable thermostat, but the proce will give you a heart attack (around $500 USD).
http://www.jeepscanada.com/jeep-libe...ly-crd-126239/
The crown thermostat used to have issues with the plastic fittings leaking, but this seems to have been more of a quality check issue. I have been running the crown thermostat for the past 9 month without issues (I check for signs of leaks once in a while).
I would also recommend to stay away from anything Crown as they have a bad reputation with parts (failing water pumps and thermostats).