you can buy a $15 manual with a $120 kit from northern and do it yourself---when my son was 16 i threw that at him and he did it right then went on repeat his success numerous times----yes a tranny guy can spot other problems that a novice will miss but you always run the risk of dealing with a guy that needs to hit a home run on you to make a mortgage payment or pay back alimony and he always has a pile of worn hard parts to show you in case you ask----so if you have a 6th grade reading level you can do 95 % of the jobs--i even built the one in my 71 military powerwagen--bob