I have two powersteering boxes and would like to know the ratio of each box I think the first box is a fast ratio unit but not sure and don't want to install it If I it a slow ratio like the one i have now. The hopefully fast ratio part # is 7626692
the one thats already on my car is a
# 5691676. Hopefully someone out there knows!

Here is the way to find out your steering box ratio. This is the box ratio not the overall ratio listed on the option sheet.

Place a degree wheel on the output shaft and turn the input shaft exactly one turn.
DEGREES -------RATIO
22.5 ------16.2
25 --------14.4
29 --------12.4
Some boxes are variable ratio and will give different degrees per turn depending on what part of the travel you are on.
I have a 67 and a 69 box that is the 5691676 casting number, they have different ratio gears from each other.
The steering box ratio is shown by an ink stamped two letter mark on the aluminum top cover near the lash adjust screw.
The 12 to 1 ratio box was only used starting with the 1982 up Z/28 and TA or IROC.
The IROC has a stiffer spool valve for higher steering effort than the Z/28.
David

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Check my web page for First Gen Camaro suspension info:
David's Motorsports page (http://ourworld.compuserve.com/homepages/David_Pozzi/)
First Gen Suspension Page (http://ourworld.compuserve.com/homepages/David_Pozzi/first_gen_suspension.htm)
67 RS 327
69 Camaro Vintage Racer
65 Lola T-70 Can Am Vintage Racer

My box that I think is a fast ratio came out of a 81 pontiac Trans am it had rear disk so i figured it had the Ws6 option and I also figured this meant that it had a fast ratio steering box does this me an anything to you?
Also at the same junk yard there was a third generation trans am that had the high volume power steering pump that I would think would have the matching box, do you think this would be a good donor if my box isn't actually a fast ratio.????

The article I have says you have a 14 to 1 box, which ain't bad, first gen used a 16 to 1 box.
82 up used the 12. to 1 ratio if it's a Trans Am, Z/28 or firebird with 15" wheels, or IROC or TA with 16" wheels.
David

------------------
Check my web page for First Gen Camaro suspension info:
David's Motorsports page (http://ourworld.compuserve.com/homepages/David_Pozzi/)
First Gen Suspension Page (http://ourworld.compuserve.com/homepages/David_Pozzi/first_gen_suspension.htm)
67 RS 327
69 Camaro Vintage Racer
65 Lola T-70 Can Am Vintage Racer

[This message has been edited by davidpozzi (edited 02-26-2001).]

Will the third generation pitmanarm fit on a second generation camaro?

Yes, the pitman arms will interchange as long as they are power boxes. Manual box has a smaller shaft.
There are two length pitman arms for the power box on a firstgen Camaro and two length outer steering arms too.
For fastest ratio use the long pitman with the short outer steering arms, on a 12 to 1 box.
I put photos of this stuff on my suspension page below.
David

------------------
Check my web page for First Gen Camaro suspension info:
David's Motorsports page (http://ourworld.compuserve.com/homepages/David_Pozzi/)
First Gen Suspension Page (http://ourworld.compuserve.com/homepages/David_Pozzi/first_gen_suspension.htm)
67 RS 327
69 Camaro Vintage Racer
65 Lola T-70 Can Am Vintage Racer