Have a 2005 Dakota 4.7 litre with 63K. At 55 mph the wheels lock severly. Without seatbelt you could go thru the windshield. Ha! Had two codes po700 and po800. I do not believe these codes are a lead of any kind due to what I have read. Leaning on a bad torque convertor. Had a 27 point inspection today.... seen nothing, but it only took 20 minutes... Thanks

 

Which wheels are locking up? All of them?

 

Its hard to determine actually front or rear or combination of both. Sorry. All I know its very bad.

 

Also....No check engine light..