I have noticed at times when I shift into first while I am stopped there is a noticeable thud that I can feel and if I try to shift directly into reverse most of the time it will grind as if I am not using the clutch unless I shift into gear then go into reverse. Are these normal for R154 transmissions? I also should mention that I have changed my tranny fluid recently to Redline MT-90. I also am looking around for short shifters that let me keep the stock height or something close to stock, I just don't want something that is like 3 inches tall.