Tremecs weren't the greatest shifting. Notchy and weren't able to power shift without grinding or not going into gear at all. I had the first one in a Duster in 2000 then 2002 in a B body. I did have to do some surgery to install them,not much just had to remove a few bosses in the case to clear the floor.Now things may be different 20+ years later.Both cars I had to have driveshafts made but can't remember if I had too or if I wanted too.