I ran the 833 with gears pro shifted by Liberty for years. I sent my gears in and bought their sliders. If you don't have gears , they sell new replacements and also they might have good used gears , you have to ask. As stated they also do face plating which is a better setup as that modification will last 10 times longer for about the same amount of money. On the pro shifted transmission, it shifts so easy it's like there is no linkage on the shifter. One thing that I found out was horse power is not the 833's friend. Under power the main shaft and the input shaft decide to push away from the cluster gear and 3rd gear becomes history along with some other gears from pieces being run through them. You can ask Liberty about that, they warned me, I didn't listen , twice. If you plan on doing any street driving , pro shifted is not the way to go. Face plated 833 is streetable.