Any one have any idea about an acceleration noise in the transmission. It does not do it at all under de-acceleration, but makes a loud noise like a straight cut gear standard transmission. Wanting to know if any one has ever had this noise or have an idea what it could be. It also seems like my engine braking is not what it once was and also it doesn't seem to have the acceleration it once had. It's almost like there is something holding it back. I've changed the oil and installed the synthetic oil. The unit only has 700 miles on it and the noise is getting louder. I checked the clutches and belt assembly and no noticeable problems there, even installed a new belt, cleaned the clutches. I checked valve adjustment and they were within tolerance, checked fluid levels in front and rear diffs, both in range. Thanks for any ideas you may have for me.