Quote:
Originally Posted by vandiesel
The torque converters are a problem in those years.
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The V10 torque converter is not problematic like the one behind the diesel.
I recommend skipping the aftermarket pan, and installing a temp gauge, and replacing the stock aux trans cooler with larger unit of the same style (plate-and-fin, don't use a tube/fin style). The larger cooler will be much more effective at reducing temps compared to a larger pan. As mentioned, the larger pan reduces clearance. It can also break apart if it hits the ground, unlike the factory pan which will dent.
I have 313,000 miles on my 4R100, with about half of those towing, usually 18-22k combined, but sometimes over 25,000 pounds. I change the pan filter every 100k. In between, I pump out a couple gallons once a year (~35,000) into a bucket by pulling the cooler hose, then re-filling with fresh fluid.