hey i have an 09 silverado 1500, with a 6inch procomp lift and 35s. sometimes but not always when i am coasting to a stop or slightly downhill to a stop the downshift can be kind of rough. ive checked my fluids and they are all in the green. i am no mechanic but my best guess is it is because of the added heft to my truck(almost 1300lbs) and it is just trying to slowdown that much more weight. has anyone else had this problem or one similar. it shifts perfect upshifting and when i am actively braking on downshifts, just seams to be an issue while i am coasting.