I’m using a GM 80s chassis for my project. I used a P30 for my donor vehicle. The steering boxes are the same size for both of these trucks. They have the same casting #. They do not have the same gearing. The P30 turns 4 ¼ turns lock to lock out of the truck. In the chassis the 80s pickup truck box turns 3 ¼ turns. This may be limited by steering stops. I have read here that the valving in the Saginaw boxes is wrong for hydroboost systems. I was wondering if the valving in the P30 box would be better. I am cheap and don’t really want to send my steering box in for a rebuild and valve change, unless it is a necessity. The P30 box may make the pickup slow steering. I don’t need go-kart steering but I don’t want a pig either.