You probably won't be able to use a one piece driveshaft. If your 3200 has a 8' bed it probably needs the 2 piece driveshaft. The 55-57 3200's had a 7' bed and had a one piece shaft with the standard 3 speed.
The last time I had a custom driveshaft made up the driveshaft shop said to take the dimensions as follows: Insert the front splined yoke as far as it will go into the trans - pull it back out 1 1/2 inches - measure from the C/L of the front U-joint to the C/L of the rear U-joint (in your case the rear U joint of the front shaft). Give them that dimension and they will make up a shaft.

The standard 3 speed was available with a long or short tailhousing depending on the year. There is no such thing as a "short" tailhousing Overdrive.

The Warner HD trans is a completely different animal and nothing from the standard 3 sp or OD transmission will interchange with it.
Fred

Last edited by rfs56trk; 11/24/2007 4:43 AM.

1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine