I found a Saginaw SM326 I believe with the 7 bolt side cover and overdrive. Does anyone know the overdrive ratios on these? I have heard .70 and .85. It has the R10Q-1 tailshaft.

Side plate 3858992 Main case #3858986 Tail R10Q-1

Thanks

1959 Apache 3200, Standard Cab, Big Window, Fleetside, 235/3spd, Original Paint
1964 C20 Standard Cab, Fleetside, 283/Power Glide, A/C, Pwr Steering, Pwr Brakes, NoSpin