Originally Posted by robsjeep

I done this conversion six weeks ago

used this tank...
https://www.oreillyauto.com/detail/c...cherokee?pos=1

remove the old pressure tank, remove the shelf it sits on. I installed the new overflow tank on the innerfender wall where the old shelf was. I made a sheet metal bracket to bolt it too. I used a hammer to dent the inner fend3rwell a bit to give clearance to one corner of the new tank to assure it sits low enough so the hood dont hit it, just a 1/4 inch or so, minor denting with a ball ping hammer. works perfect. I eliminated the heater valve, and used the late model two heater hoses, but you will find that one of them hoses wont reach the water pump, so cut and splice the old hose from the pump to fit, easy peasy. the electric fan thermoswitch was originally on the renix radiator. the later systems moved this switch to the thermostat housing some radiators with the filler next might has a port for the switch, if not you need the late model thermostat housing to hold the switch, and that switch will be a different thread size, so you will need the later switch.

my conversion is nice i like it, no more failure prone plastic pressure tank!