I used Shadepro. Their instructions show how it can be done by one person in less than an hour.
1994 27sl Alpenlite with many mods, 2001 Dodge Cummins 2x4 3.54 Auto trans built shift kit and 2nd gear lock up mod. Mojave Green billet, triple disc low stall torque converter. Gauges and raptor 3/8inch fuel system. 12.5 mpg avg