Power steering box identification

[68renner]

Anyone know how to identify GM power steering boxes? Ratios? Any help would be great!

[derekf]

This might help:

http://www.chevelles.com/techref/shea_3.html

[bochnak]

I aked the same Q not long ago:

http://www.chevelles.com/forums/showthread.php?t=201236

[David Pozzi]

Here's how to do it with an engine degree wheel.
http://www.pozziracing.com/camaro_steering.htm#Steering%20box%20and%20ratio%2 0info

[68renner]

thanks for the help guys!