I had one for my Dana 80 and it didn't work at all. It was found to be machined improperly and wouldn't you know it, they stopped making one for the 80. I don't know what they make anymore. I got my money back after 3 months or so. I can't speak for their products as I only have that experience with them. I am not blasting the company, they were upfront with me. I just was really disappointed that it didn't work out. I finally got a good deal on a stock posi carrier and restacked the clutches before I put it in. It works quite well for me.