2001, 7.3 Diesel, 2WD, DRW, 167,000 miles.
Accelerates to about 25 mph sort of shifts and then it feels like I put the brakes on. The only thing I noticed was a slight rattling noise that seemed like it came from center line rear of truck. Drove it home in second gear.
Does anyone have a suggestion for a rebuilder in Tucson AZ?

 

Do you have a flashing O/D light?

Can you read the codes in the PCM?

If not:

https://www.ford-trucks.com/forums/1...the-cheap.html

Is the fluid level good?