Hello, I am new to this club. I wish I would have found this sooner, I have had the truck for 3 years now haha. Anyways my 2005 Silverado 1500 has approximatly 92,000 miles. I had the tranny replaced under aftermarket warranty around 68,000 miles. They used an aftermarket transmission that came with its own warranty. Long story short on the way to work today I noticed more trouble. From a stop, or a roll under 20 miles per hour, once accelerating, around 35 mph the truck would disengage the transmission and rev the engine, if I let off the brake the tranny would re-engage. Any idea what could be causing this. I was in normal morning traffic so it was not a situation of beating on the truck, which I don't do anyway. Any help would be greatly appreciated.