While we do offer a full manual forward pattern valve body for a TH350, I'll be perfectly honest... we simply use a TransGo reprogramming kit to convert a stock TH350 valve body to full manual forward pattern. Most of the current manufacturers out there use the same process or a variation of it perhaps with a different kit. The only advantage you truly have by purchasing a complete valve body from us is that we do resurface the valve body to insure that there are no internal leaks created by a warped casting, and we do blueprint the passages and valves to make sure that everything is sized correctly. These things are obviously important, but if you have a good functioning stock valve body, chances are good that you can get away with converting it yourself using the TransGo kit.
That being said, when it comes to full manual reverse pattern or transbrake valve bodies, it's a whole different story. There's some custom machining and components that go into manufacturing these valve bodies, and no simple "off-the-shelf" kit is available for this type of conversion. Personally, I prefer a full manual reverse pattern over a forward pattern. We normally set up the reverse pattern units to carry more line pressure, which increases the transmission's ability to withstand more torque. The reverse shift pattern is also much safer in any racing environment by preventing the possibility of over-shifting into neutral when making gear changes.
