It may be normal and there may be a reason for it. All I know is that out of all my vehicles this is the first that I really feel the downshifts. I can live with it and I've even gotten used to it. Some days it still catches me off guard and feels unusual. Especially , like I said, when I'm just trying to go around 30-35 it's very noticeable.
Same thing on my truck. Not a jerk. But feels like someone taps the brake on downshifts when I start to coast into my 25mph town everyday. The most noticeable one I feel is at about 33 mph. Very annoying. Especially if I give it gas right as the truck downshifts. Kind of throws it out of whack.
That truck looks great man. I really like the wheel/tire combo. What size tires are they and do you have a leveling kit or is that all stock suspension?