Ok so I got two transmissions from my buddy, one is a 1988 and the other 1975. Tore them both apart today and here is what I found. So first the 1975. it has a four clutch front and rear.Aluminum four pinion sets first and second. But here is where it gets weird the sprag is different from 1975 to 1988. The 1975 is a pinned sprag and is way smaller then the 1988. Whats weird is that the 1988 sprag is about 1/3 bigger than the 1975. The 1988 is everything that i wanted, low ratio first and second, five plate front pack and four rear. So i am moving forward and this is what I got right now. I will post pictures as I go.
