Hey gents. Perfect topic! 1958 Chevy 1/2 ton, 350 with some mods and a beefed Turbo 350.
This winter im in the process of a rear end swap. Ditching my 10 bolt. I got a ford 9" made up with:

$680 - 9" Housing/Axle Package (58 Chevy Truck - Leaf Spring - Custom)
- New Axles, Axle Bearings, Wheel Studs, & Retainers
- 31 Spline, Choice of Bolt Pattern, 1/2" Studs
$820 - Center Section (Assembled)
- New 31 Spline Trac-Lock Posi
- New Motive Performance Gears (Choice of Ratio)
- New Timken USA Bearings
Switching to Wilwood disc brakes also.

This is being built from quick performance. (Great place to deal with)