2000 Chevrolet S10 Q&A

2000 Chevrolet S10 Question: why does it sound like my truck is winding down when I let off the gas?

when im on the interstate going 60mph and I let up just a little bit the truck sounds like its winding down almost like the breaks are engaging but doesn't pull one or the other. It also slows down a lot quicker than normal like its lost power but still wants to go, and as soon as I stop the truck the sounds stops and sometimes it wont do it again until I drive home the next day. transmission is got 20k "rebuild" and the fluid is at a good level and color and no shavings! Im kinda stumped here so anything will help thanks! -
Answer 1
Need more info. 2000 S10 aint enough! Body style, engine, trans. type, 4x4 what exactly do you have? Makes a big difference! -