05 Suburban - Transmission Woes

[31rx7]

I have a 2005 Suburban, 5.3L, 2wd, 1500, towing package, and 60,000 miles. I purchased this vehicle used with about 50,000 miles on it. On Wednesday this past week, the transmission started slipping slightly and has gotten progressively worse in a hurry.

 

- Fluid and filter were changed about 10k miles ago,

- Has towed a 6000 lb rig about 2500 miles, including one round trip of 1500 miles. During towing, the transmission is in "trailer towing" mode, in "drive" (not overdrive), and speeds are kept reasonable (nothing over 65 or so).

 

When it started happening, I checked the fluid and both the level and color were fine, no burning smell. My mechanic and I went for a test drive yesterday with his scan tool hooked up, and there are no codes on the computer and the CEL does not come on. Today, my mechanic took off the pan, and found some metal shavings barely visible to the eye, but not excessive. The filter looked fine and the fluid itself did not show any signs of overheating - it looked new.

 

It looks like a new transmission will need to go in.

 

Has anybody had a similar issue come up with their newer Suburban, Yukon, Tahoe, or C/K truck? If so, what caused it and what was the resolution? I hate the thought of having to put a new tranny in such a new vehicle.

 

Thanks in advance for any assistance or insight.

[AJ]

PM me if you want it rebuilt. its not just your truck GM has had this problem for years. i have rebuilt quite a few for people on this board so maybe they'll chime in. and i rebuild them at a chevy dealer.