I just installed a South Bend DD in my 99' 5-speed, and for some reason my park brake got soft at the same time? Before removing the transmission it was stiff and would hold ery solid, but now it is very soft and you must push it all the way to the floor for it to engage. Also it shifts through the gears fine, but when you put it into reverse you have to force it and it will grind. If you start the truck with it in reverse you have no problems.