I have a C&R unit that has a Tru Trac in it with the internal pump .. No problem on the replacement of the locker
Now why would you get a unit like this.. a built in pump for cooler & not run it.. i recommend that you run it.. Also when you vent the diff.. try to run a -10 hose.. it will help with pressure the diff builds.. here is pic of the one I did on Blu...
I believe I can use the pump still. Def not an expert either.
Not gonna run a cooler to start. Gonna run a line from pump out back to the return fitting on the housing.