A little follow up to my diff cooler. I got the new LSD installed last week and also added a Defi temp gauge. So far all I have done is break the diff in but, part of that was the 35 MI drive to work all freeway. I am now using Motul 75-140 for reference on the oil this data comes from.
So while driving on the freeway the diff oil slowly climbs to 230 deg when I flip the switch for the cooler it literally takes 15 sec for the temp to fall to 185 deg where for freeway it normalizes and I shut it off. The pump is now very quite and with road noise I can't hear it at all.
