03 f150 2 wheel dr 4r70w trans. Just replaced my planetary gears and matching companants. Didnt know to oay attention to the number of teeth on planetary drum and now my speedometer is so far off it read 100 when im doing 20. Truck shut down at 100. Is it possible to recalibrate for the difference?

 

why not correct the incorrect parts??

 

Yep, sounds like you used 2004 and newer parts. It can possibly be corrected with a programmer and custom tunes, which aren't particularly cheap.