Odd question..... I know my tranny syncros have issues and my transfer case is pretty well worn out but what would the specific reason be for why my truck shifts wayyyyyyyyyyy better when the 4x4 is engaged.

If you know please explain in detail?

I think I mentioned that if I run the R's up around 3100 RPM'S and then shift that it shifts much better but when in 4x4 I can shift at the natural shift points and have better results. When its out of 4x4 you cannot down shift at all and upshifting is a little grindy at the natural shift points. I mentioned some of this already but I want to understand why there is such a noticeable difference.

Why exactly is that happening? <img src="/forums/images/graemlins/confused.gif" alt="" />