Spent the last week exploring all the information I could find on making my non power steering 68 GTO a power steering car. Some may already know this but for those who don't.... Thought the box I pulled from a 65 Catalina would do the trick.... NOT So. While the same box (same part number on box) was used for years the internals changed considerably.
The 1965 box is a 17 to 1 ratio meaning 5 or 6 turns stop to stop. The newer boxes will get you 2.5 to 3 turns stop to stop. BUT that's not the biggest consideration. The stops in various boxes are set at different places. You put a camaro or firebird box on a GTO & you lose turning radius.
A lot of the quick turning ratio boxes that you can buy for our older cars have the camaro internals & while not every company tells you, going to this box cuts down your turning radius.
I just spoke with Tim at Prosteering Systems Inc. phone 800 650 4145. For $259.00 plus shipping ( about $20.00) he is gonna put a box together for me today with the quick ratio and the correct stops. There is a $100 core charge but a return shipping label will be included in the box. When I get it I will post here to let everyone know how it goes.
Someone posted this in another thread I had about power steering. It's about Oldsmobile but it has a ton of information & deserves wider dissemination. So here it is again:
http://www.442.com/oldsfaq/ofstr.htm...Considerations