The company that builds the t5 is not a gm biased vendor.ford and jeep both used the t5 and like with gm trans units are supplied as per how each auto buildr wants them spec'd.All transmissions ( esp manuals) transfer cases and differentials are build by non oem vendors and supplied to who wants them.one cant get to hung up on being a gm purist when many other brands of cars run the same stuff in various configurations.as mention previously there are many ways to do this and each has to decided what way to go.I follwing this topic over theyears it has definitly been refined and is very easy to do.I currently run a saginaw 4spd out a monza with a 3.07 gear ratio out of a late 70's 4x4 gm.will run with anything on the hiway, a bit sluggish on hills at lower speeds.would work better with 3, 55 or 3.73 gears.holding off with the t5 till I can get at least 3.73 or 3.90 to go with it.lots of hills where I live so it is important for me to be geared accordingly,still have the 235 with a 2bbl carb, gm 250 hei distributer
