I imagine other main difference be the gear ratios. don't about 456s the 441s the 4 cyl Vegas a first gear ratio. a dead stop helped the wheezy engine the intersection the light turned red again! like might been low 3.50:1 first gear.
All Saginaw gearsets (both 3 spd 4 spd) the 29 tooth 1st gear mates the 15 tooth gear that's machined the cluster (1.93 ratio). difference the 2.54/2.84/3.11/3.50 1st gear ratio gearsets not 1st gear (they all same), it's the input ratio the front the box.
What the gear ratios the Saginaw 4 speeds came the 78-80 gbody's? Yes, I've the info the Saginaw ratios determined the number grooves input shaft but one ( ones? . yeah , Saginaw 3 4 speed bolt up. difference be shifter . . Transmission / Rear .
# grooves: 1st: 2nd: 3rd: 4th: Notes: 0: 2.85: 2.02: 1.35: 1.00: 1: 2.56: 1.81: 1.37: 1.00: gear cluster 25 teeth: 1: 2.56: 1.81: 1.44: 1.00: .
2.54 ratio = 19/25 2.84 ratio = 19/28 3.11 ratio = 18/29 3.50 ratio = 16/29 Saginaw 3 spds 4spds the 29 tooth 1st gear same 15 tooth 1st gear machined the cluster. different 1st gear ratios due different tooth counts the input shafts the front gear the cluster.
The Saginaw often mistaken a Muncie. Muncie has 7 bolt side cover; however, Muncie reverse lever found the extension housing features aluminum case. are gear ratios the Saginaw's. can identify transmission have the groves typically cut the input shaft clutch splines.
Saginaw three-speed transmissions featured gear ratios 2.85:1 first, 1.68:1 second 1.00:1 third matched L6 in-line six-cylinder engines. small-block V-8s, the 350, three-speed 2.54:1, 1.50:1 1.00:1.
Saginaw 4 speeds in different transmission ratios. I to change one gear ratio another, (example ---3.11 to 2.54 first), I simply change cluster gear 4th gear imput shaft use of other existing gears. . Gear ratios the Saginaw 4 speed Number ID Groves 1st 2nd 3rd 4th .