I have a 2000 F150 with the 4R7OW transmission and want to get a pan with cooling ribs and a drain plug. My question is that I see 4R7OW part # with E4OD in parenthesis right next to it. Do these trannys use the same bolt pattern on the pans? And which aftermarket pans are the best ie. (don't leak). I am worried about poor integrity (warping) around the gasket causing leaks.

 

I have had good luck with the Mag-Hytec pan so far.

http://www.mag-hytec.com/

I am not sure about the bolt patterns but maybe this will help...

http://www.baumannengineering.com/pguide.htm