Author Topic: Pitman Arm to Steering Box Spacing  (Read 257 times)

jmcbeth

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Pitman Arm to Steering Box Spacing
« on: November 28, 2015, 03:03:19 PM »
I just attached the pitman arm to my rebuilt steering box. The spacing between the pitman arm and the steering box after tightening is about 5/8 inch. On my other Z, the pitman arm spacing is much less. Is this OK or do I need to correct this? See picture below.
John
1969 Camaro Z/28 RS
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Mike S

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Re: Pitman Arm to Steering Box Spacing
« Reply #1 on: November 28, 2015, 03:38:25 PM »
 Was the lash adjustment performed (it's the top cover adjustment)? That will raise/lower the sector shaft based on the final torque reading so whatever is exposed should be normal.

Mike
67 LOS SS/RS L35 Hardtop - Original w/UOIT
67 NOR SS/RS L35 Convertible - Under restoration

sixt9x33rs

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Re: Pitman Arm to Steering Box Spacing
« Reply #2 on: November 28, 2015, 04:08:43 PM »
JMcbeth, I just did the exact same thing and had the same issue. My issue was that I could not torque the pitman arm to spec because I did not have a 1 5/16" socket to torque it down to the 120 - 160 foot pound spec per the AIM. Once I got that done then my pitman arm went further up the shaft and to what I believe is acceptable.

Who rebuilt your box? I had Lares Corp rebuild mine.
'69 RS Z/28 Olympic Gold, 711
Flat hood no spoiler, black top, endura, 4:10
POP 39,000
69 X77 Z/28 69 711 Original Paint Unrestored
'69 X66 Convertible Cortez Silver 712 black top Endura, auto, bumper guards, am/fm rear speaker 44k miles

jmcbeth

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Re: Pitman Arm to Steering Box Spacing
« Reply #3 on: November 28, 2015, 08:04:17 PM »
Mike, Don't know. Purchased steering box from Heartbeat. I would assume they adjusted appropriately. How can one tell?

sixt9x33rs, When I torqued to 120 ft. lbs. it came up a little more, now about 1/2 inch. Steering box came from Heartbeat. I presume they rebuild them.

Thanks!

John
John
1969 Camaro Z/28 RS
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Mike S

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Re: Pitman Arm to Steering Box Spacing
« Reply #4 on: November 29, 2015, 03:04:24 PM »
Mike, Don't know. Purchased steering box from Heartbeat. I would assume they adjusted appropriately. How can one tell?
.........

John
Hi John,

  The way to tell is to use a scale to measure the resistance of the shaft but that would have to be before it was installed. Too loose and it will have some slack feeling in the steering wheel and too tight it could bind and/or create excessive gear wear. I'd be surprised if that measurement was not checked during rebuild if it was done by a knowledgeable rebuilder. At this stage I would drive the car to get a feel for how the steering wheel feels. If no slop then I would say you are fine.
  As a side note, I know some people who use the old school way to drive and slightly tweak that nut until the slop is gone. Sort of like adjusting the vacuum advance without a timing light.

Mike
67 LOS SS/RS L35 Hardtop - Original w/UOIT
67 NOR SS/RS L35 Convertible - Under restoration