Topic: STEERING BOX & Pitman Arm for Early 67 with tilt column

[67gtasanjose]

I have a 11/2/66 actual build date 67 San Jose and realized today that I have a C9ZA-3590-A Pitman arm so obviously it is incorrect. I have been over at the Stangerssite.com page but I see no notation for the early 67's that would have the SHORT input shaft when having the tilt column also.
According to the information I am reading, all early 67's (till 5/1/67) should have a 1" sector shaft and a pitman arm C4Za-3590-A.

Am I correct to believe the early 67's with short input steering shafts (used on Tilt applications only) may ALSO have the 1-1/8" sector shafts(like the later ones)? I understand my pitman arm is incorrect because of the engineering numbers but I believe my gear box IS CORRECT.(untill I find out otherwise at least I believe it is correct)

[67gtasanjose]

I may have just figured it out, Using my original gear box tag, "SMB-E" at Stangerssite.com, it is supposed to be a 1" sector (output) shaft.

Obviously, I have the 1-1/8" output shaft installed...Clearing out the cobwebs of my memory, I am reminded that I rebuilt this box in the mid/late-90's. I must have switched out the output shaft and pitman arm to match (possibly all internals). Memory tells me the bearings had come apart and the box, being sloppy as hell, locked up while turning in a parking lot. It is possible I simply chose the best of what I could get at the time by using a junkyard doner, (seems foggy, but very likely) and installed it all in my original housing, retaining the tag from the original.

I sure am glad I quit drinking in the late 90's before I really did any truely "unrepairable" damage!

[67gta289]

I've been doing some research on this as well, but am not done.  Here is what I've got so far:

The first picture is from the Jan 67 MPC.  I believe the MPC to be wrong because there is no differentiation between PS and MS.  It is interesting to note that we are dealing with only C7 numbers, not C4.

The second picture is from the 65-72 MPC.  Here the 5/1/67 date is introduced, and whereas the 67 MPC referenced a -A and -B C7 part, here a -C part is listed.  Also here is looks like the -B is clarified as MS, and -C is PS.  Again these are "late", and the C4 is early.

It is very interesting that the 65-72 MPC from 75 does not even list the C9 part, which one would expect.  Strange.

It will be a couple weeks before I can check my collection.  I do have at least one of each C4, C7, and C9 PS arms and need to measure them.  I have one or two short shaft 1" boxes, with original arms.

[krelboyne]

There is a difference between manual and power steering pitman arms 1967-70. P/S pitman arms have a hole in the end for the power steering control valve stud. M/S pitman arms have stud on the end for the manual steering drag link which has a hole in the end.

That date of 5/1/1967 for the 1-1/8" pitman arm is likely when the factory ran out of long and or short shaft 1 inch steering boxes in at least one of the factories on 1967 Mustangs. Probably the long shaft boxes.

1967 Cougars did not get the long shaft steering boxes, ever. I have a hard time finding that 1 inch pitman arm, and I have noticed that they are found on the C6ZR cast steering boxes. I have not yet determined if they were on some of the C7ZR steering boxes. I think that the short shaft steering boxes with 1 inch sector shafts changed sooner than 5/1/1967, to 1-1/8 inch boxes. At least in Dearborn.
Cougars did not have the long shaft steering boxes likely due to the fact that the Cougar was 'ride engineered', more sound deadening, etc, they were trying to eliminate vibrations and noise. 1967 Cougars also had articulated strut rods (not a good idea).

[ruppstang]

Another difference between MS and PS is that MS is 5 turns lock to lock and PS is 4 turns lock to lock. I will check my SJ 11-04 -66 for shaft and pitman arm when I have time.

[krelboyne]

Another difference between MS and PS is that MS is 5 turns lock to lock and PS is 4 turns lock to lock. I will check my SJ 11-04 -66 for shaft and pitman arm when I have time.

Marty, there is an exception to this rule. Cars ordered with competition handling and M/S got the 16:1 steering box with manual pitman arm. SMB-E & SMB-F steering gear boxes.

[67gtasanjose]

Pictures here of all pitman arms being discussed:
http://www.stangerssite.com/pitmanarms.html

[ruppstang]

My SJ 11-04-66 has the C-4ZA 3590A one inch pitman arm and a short shaft.

[67gtasanjose]

SUMMARY:

My SJ 11-04-66 has the C-4ZA 3590A one inch pitman arm and a short shaft.

My 11/2/66 built Small Block WITH tilt should be returned to this scenario (like Marty's car) to be "Concours Correct".
Obviously, my rebuild back in the day simply kept the original gearbox tag, using the junkyard donor to "Gitt-err-Dunn" at that time.

[196667Bob]

Attached are the Sector Shafts(3575) and Sector Shaft (Pitman) Arms for 1967 as noted in the 1960-68 MPC, both from pages dated August 1968.

Bob