Hey Everyone very new to this forum but need some guidance.

I Just bought a 2005 f150, the trans was doing the slip in over drive so last night i dropped the pan and valve and replaced a broken retainer ring hoping that would be the fix. Dug all the pieces out of valve body put new ring in, put everything back together added 5 quarts of fluid start it and when I shift in to reverse it backs up but if I shift in to any other gear the rpms have to be way up for me to be able to crawl forward then I got a trans fault and O/D flash.

What Did I DO?

 

Scan for OBD2 codes with a scanner that can read Ford transmission codes.

 

The Codes I received are P0720 P1000 P0722 P2106

 

https://www.obd-codes.com/p0720

https://www.obd-codes.com/p0722

https://www.obd-codes.com/p2106

Looks to me like your OSS is toast.

 

Would make it not drive at all?

 

It's possible. Read all 3 of those links.

 

I'll bet the manual valve isn't properly connected to the shift linkage. This will set a false OSS code.

 

Yes, this

http://www.bcawebstore.com/leverslot.jpg