Did it myself today. Truck has 140,000 so it is due. Not a hard job but it takes several hours to do it right. Removed the pan and found it to be very clean, almost scarey clean. Hardly any shavings on the magnet. Very little cleaning needed. This means little wear on the trans., even at 140,000 miles! Installed new filter and fluid and put it back together. Test drive and all is well!
Now I gotta do the rear-end.

 

Your 12' truck has 140,000 miles?
How is that possible? Godsake that is some serious truckin!

 

Yeah well I've had the truck about 2 years now I drive about 70,000 miles a year more or less

 

Did you just change the fluid that was in the pan or did you manage to get it out of the cooler and converter.

Denny

 

No I did a simple drain of the pan course I remove the pan and everything but next time umm I'll probably do it in about another 50,000 miles from now I won't wait so long

 

That's a goodly amount of miles.

Are you hauling or towing with it?
What kind of load, if any, is it working under?

 

Nice to see the trans is holding up well.

 

I'm a hot shot driver, so it is worked hard. I haul oilfield parts, no towing. A typical load for me can be as little as 200 lbs, up to 8500 lbs. My average load is about 3500 lbs.
It's just amazing how clean the trans. was. It must be the Mercon LV fluid. Don't ever use anything else...............cheers!

 

Well this post is a true testament to the durability of the 6.2.

My friend, that is some serious driving!