I needed to rebuild a ball and socket joint on the double Cardan constant velocity u joint assembly on my 1999 F250 Super Duty front drive shaft. All the parts vendors kept showing a Spicer type replacement, which looked nothing like what I had. I found Torque King on the internet, and they showed a possible repair kit that looked like mine. I contacted Roy at Torque King, and he explained that Ford had made two possible CV joints; one by Dana/Spicer and the other by Saginaw. I had one of the few Saginaw types. The parts were shipped and arrived quickly, and the problem was solved. Great, friendly service at a reasonable price!