Quote:
Originally Posted by CRGRS 66
The pitman arm is 5-1/4" center to center, and power steering box is mounted as per the captains template.
I have also looked up pictures of the CPP front sway bar installed, and although it is different than the stock style, it is the correct bar andI am convinced that the sway bar is not the problem. If I remove the sway bar, the inner tie rod still interferes with cross member, see the middle picture in post#4. It seems I either need a short pitman arm, or the same pitman arm, but without the offset.
Unfortunately I don't have the original steering box and pitman arm.
I wonder if the gear box itself is the issue, is the location of the output shaft different from year to year? See where the output shaft is, roughly in the middle of the gear box, should the output shaft be further towards the front of the truck?
Thanks again to everyone for posting your thoughts and suggestions.
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Quote:
Originally Posted by CRGRS 66
The pitman arm is 5-1/4" center to center, and power steering box is mounted as per the captains template.
I have also looked up pictures of the CPP front sway bar installed, and although it is different than the stock style, it is the correct bar andI am convinced that the sway bar is not the problem. If I remove the sway bar, the inner tie rod still interferes with cross member, see the middle picture in post#4. It seems I either need a short pitman arm, or the same pitman arm, but without the offset.
Unfortunately I don't have the original steering box and pitman arm.
I wonder if the gear box itself is the issue, is the location of the output shaft different from year to year? See where the output shaft is, roughly in the middle of the gear box, should the output shaft be further towards the front of the truck?
Thanks again to everyone for posting your thoughts and suggestions.
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Gear box looks like "ours", including where shaft exits the box. So does shape of pitman arm, which must be
same length eye-to-eye to the length of the idler arm, eye-to-eye.
Sure wish I could see your project in person. Beginning to guess things like drag link needs flipping over, to give more frame clearance.
BTW: has idler arm been changed? What did drag link come off of?
Something to remember, the pitman arm MUST FIT gear's output shaft on one end, and fit drag link on the other end. Obviously either the box OR the drag link fits incorrectly! IIRC, the '71-'72 had a smaller gearbox shaft end AND drag link end than some later years. Actually among 1st ones I did, was tempted to cut the 2 diff. pitman arms and splice-weld with one small end and one big end.
Below's a research I saved from a forum member--maybe Keith, maybe Woogeroo [They may be one and same, but did gobs of research on this issue and probably others, too.)--that may help.
"PARTS THAT INTERCHANGE W/1960-1987 PKPS
"Drum to Disc" conversions 60-70
60-62 truck with:
63-70 Crossmember Installed
********************************
60-62 Truck with:
71-72 Crossmember Installed
********************************
60-62 Truck with:
73-87 Crossmember Installed
********************************
60-62 Truck with:
71-72 Crossmember Not Yet Installed:
********************************
60-62 Truck with:
73-87 Crossmember Not Yet Installed:
********************************
63-66 truck with:
63-66 Crossmember Installed
********************************
63-66 truck with:
71-72 Crossmember Installed
********************************
63-66 truck with:
73-87 Crossmember Installed
********************************
63-66 truck with:
71-72 Crossmember Not Yet Installed:
********************************
63-66 truck with:
73-87 Crossmember Not Yet Installed:
********************************
67-70 truck with:
67-70 Crossmember Installed
********************************
67-70 truck with:
71-72 Crossmember Installed
********************************
67-70 truck with:
73-87 Crossmember Installed
********************************
67-70 truck with:
71-72 Crossmember Not Yet Installed:
********************************
67-70 truck with:
73-87 Crossmember Not Yet Installed:
*********************************************************************************
60-72 truck with
"Unknown" Crossmember Swap?
* This is where it's hard to determine the correct parts needed.
Here's the break down by year:
Disc Brake Spindle:
*60-70 (Aftermarket Conversion Spindles)
*71-72 (oem or drop)
*73-87 (oem or drop)
C10
Grouped by Differences:
*60-62
*63-70
*71-72
*73-87 (HD 1.25" wide rotors)
*81-87 (LD 1.00" wide rotors)
**Some 81-87 trucks also had the HD rotors**
** All Aftermarket 6-lug "Conversion Rotors Are the HD 1.25" wide version**
C20
*71-87
Rotors:
*71-72 (1.25" wide)
*73-87 (HD 1.25" wide rotors)
*81-87 (LD 1.00" wide rotors)
**Some 81-87 trucks also had the HD rotors**
** All Aftermarket 6-lug "Conversion Rotors Are the HD 1.25" wide version**
Calipers:
*71-72 (1.25" wide)
*73-87 (HD 1.25" wide rotors)
*81-87 (LD 1.00" wide rotors)
**Some 81-87 trucks also had the HD rotors**
** All Aftermarket 6-lug "Conversion Rotors Are the HD 1.25" wide version**
Upper Ball Joint:
Grouped by Differences:
C10
*60-62
*63-70
*71-72
*73-87
C20
*71-87
Lower Ball Joint:
Grouped by Differences:
C10
*60-62
*63-70
*71-87
C20
*71-87
Control Arm Upper Cross Shafts:
Grouped by Differences:
C10
*60-62
*63-72
*73-87
C20
*63-87
Control Arm Lower Cross Shafts:
Grouped by Differences:
C10
*60-62
*63-72
*73-87
C20
*67-86
Inner Tie Rods:
Grouped by Differences:
C10
*60-62
*63-64
*65-70
*71-72
*73-87
C20
*60-64 (drivers side)
*60-64 (pass. side)
*65-70
*71-87
Outer Tie Rods:
Grouped by Differences:
C10
*60-64
*65-70
*71-72
*73-87
C20
*60-64
*65-70
*71-87
Tie Rod Adjusting Sleeves
Grouped by Differences:
C10 and C20
*60-64
*65-70 (5/8" thread)
*71-87 (11/16" thread)
Centerlink:
Grouped by Differences:
*60-62
*63-64
*65-70
*71-72
*73-87
Pitman Arm:
Grouped by differences:
C10
*60-66 Manual
*60-66 P/S
*67-72 Manual
*67-87 P/S (Specify Year When Ordering)
C20
manual:
*60-66
*67-68
*69-70
*71-87
Power Steering:
*69-70
*71-87
Idler Arm
Grouped by differences:
C10
*60-62
*63-66
*67-82
*83-87
C20
*60-66
*67-82
*83-87
Steering Box:
Manual
*60-62
*63-66
*67-82
*83-87
Power Steering
__________________
Keith"