Another Manual Steering Box Question

[C10 - C90 Bill]

The interchange on a manual steering box for my '72 C-10 as I understand it is '68 to '87 (Remember, I am staying with MANUAL).

My question is: What makes a '67 Manual Steering Box not work?

(As luck has it, I have one of these available on a parts truck).

Any info would be appreciated.

[FormerMember]

No idea, but if you need one, I have a 71 manual box with a really good pitman arm on it.

[shifty]

I may have offered before, if so, forgive me. I have a '68 manual gearbox with pitman arm in great shape also. I think there are only bearings in there with a wheel and grease. I'm not entirely sure. I just heard to be careful when you crack em open because bearings will roll all over the place.

[pjmoreland]

The only thing I've heard about '67 frames is that they don't have a dimple in them that is required for mounting a power steering box, and some people have run into problems when they try to mount a power steering box on a '67 frame. I had a '67 truck (definitely a '67 because the VIN on the frame matched the VIN plate) and mounted a power steering box from a '76-ish truck on it with no problems, so I'm a little confused about this dimple issue. If a newer gearbox fit on my '67, I can't see any reason why a '67 manual gearbox wouldn't work on a '68-'72 frame, although I have never actually tried. I removed a manual gearbox from a '70 frame, and as far as I could remember, it looked the same as the manual gear box I removed from my '67.

[walker]

The 67 box should be the exact same. There was some goofy stuff with the power steering in 67 that used a manual box, so perhaps that is why it says that. When I bought a 71 complete front end to put under my 67 it had a manual box that was the exact same as my 67 box.

[Longhorn Man]

Bill, I was thinking about this question the other day from when you asked last week... and in all reality, I think you may be right...the older ones may well go on there.

[C10 - C90 Bill]

Appreciate the info y'all.

['68OrangeSunshine]

Originally Posted by C10 - C90 Bill

The interchange on a manual steering box for my '72 C-10 as I understand it is '68 to '87 (Remember, I am staying with MANUAL).

My question is: What makes a '67 Manual Steering Box not work? ..

Well, this may be K/10 specific, but the manual steering gear box on my '67 4x4 Suburban had a pittman arm that swung in a fore-and-aft arc, not left-to-right. I ran into big problems when I tried to mount a P/S gearbox from a '69 onto my '67. Different systems. The turn geometry was all out of whack. I had to JB Weld the old manual box back together and reinstall manual steering.
The manual gear box on my '68 C/10 pulls left-to-right, and looks like a smaller version of the hydraulic Saginaw P/S gearbox. Don't let the body style fool you, the '67s are more closely related to the Task Force trucks ['66-'58] at least in the steering end.