I have a 2000 cummins 3500 with 47re trans that has only 70,000 total miles. it has lost its friction from the 2nd gear band. I found parts of it in pan during service. It was hunting 1-2 shift under light throttle. I had the same hunting at 30,000 and I washed out the worn friction muck from solenoid and that fixed it. This time I got friction chunks from band but no metal. Can I replace the band in truck? they used to make snapin bands for fords but I can't ever remember doing one on a mopar. I hate to pull this trans since it has no other problems.

 

Nope, the trans has to come out and front pump removed.
(why did I call it the front pump, it is the only pump!!).
It may need to front drum replaced or surfaced too.

 

you called it front pump mostlikely from the days when some had a rear pump also. you must be old like me! I will try to cut off the band ancor tab and install it and spot weld it back on before i yank it out. the drum is fine because i didnt let it slip for long. the band had good linning left on it just failed maybe because of the hunting at 1-2 shift snaping the band on and off?

 

Water can damage the lining too.