The easiest way is to remove the transmission for that job
The 2011 Ford F-150 runs on flex-fuel (FFV).
The 2012 Ford F-150 runs on flex-fuel (unleaded/E85).
The 2013 Ford F-150 runs on flex-fuel (unleaded/E85).
The 2014 Ford F-150 runs on flex-fuel (unleaded/E85).
Answering "How do you remove and replace the radiator in a 1994 ford F-150?"
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You can replace with any window of the same size, as long as you really know how to do it.