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I have no say on the subject, other than where does the dipstick sensor take readings from? Is it the pan itself? I figure it'd have to be if it's on the end of the dipstick, and the downside to that is that you're seeing temps after they go through both coolers... . not exactly accurate or precise readings.
I've had both the JRE manifold, and now have the replacement line... both work good, but wanted the line with higher pressures in my new transmission, so I didn't pump it dry after blowing the manifold apart. I've got a manifold for sale if someone wants it (won't have it in hand for a week though). PM me.
Just my $0. 0175
Josh