What kind of transmission do I need for my Ford F450?
What kind of transmission do I need for my Ford F450? So you might think that the most economical way to solve your Ford F-450 transmission problems / Ford F-550 transmission problems, would be to purchase a used 4R100 transmission or used 5R110W transmission from the local salvage yard. Why are my gears slipping on my Ford F450? Drivers of the 2003-2010 Ford F-450 / 2003-2010 Ford F-550 may experience slipping, and/or harsh/delayed engagement of forward or reverse gears. This is due to a design flaw in the Ford 5R110W transmission, where the gear set pinion shafts will actually back...