1967 3/4 GMC suspension swap from a 1974 Chevy 1/2 ton

[sduckworth13]

I got my complete suspension , brakes, power booster, master cylinder, steering, complete brake lines with proportioner valve and the steering column today. Its off a 1974 Chevy 1/2 truck. I'm doing a 5 lug disc brake conversion with power brakes and, power steering conversion on my 1967 GMC 3/4 ton. I picked everything up for $250.00. Next step is to dismantle everything and get ready for sandblasting. I had the guy I bought the parts from cut the entire front section off the vehicle with 6 inches of frame was left on behind the crossmember, so we moved the front suspension in a whole unit. I plan on cutting the section of the frame off the donor vehicle where the power steering dimple is and transplanting that small section on my truck.

[ctpchevy]

im pretty sure you wont need to cut the dimple into the frame of your 67 it should already have it in there the steering boxes didnt change from 67-87 other than power and non power i put the same power steering box in a 68 not to long ago they bolt right in ....i could be wrong though but check it out before you go threw cutting it

[ctpchevy]

here are a few pics its hard to see but it has the 73 brakes and full steering and the booster as well you have to modify the rod a lil bit but it works killer and i kept the 67- 72 arms because of ground clearance the bushings are smaller on the 67-72

[sduckworth13]

I sure hope I don't have to cut anything on the frame, but I will see how it all lines up once I get it apart.From the look of it, it appears that the steering gearbox will hit the frame on my 1967. I have the raised bosses on the 1967 frame but not the notch the 1974 frame has on it. I will post some pics today of my frame. Let me know what you think. Thanks, Scott
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[ctpchevy]

im 99% sure you wont have to in the pic above thats a 68 frame with all 73 steering but yea post the pics ill check it out and let ya know what i think

[sduckworth13]

Here are some pictures of my power steering gearboxes. The first gearbox is the 1974 Chevy truck power steering gearbox and frame and the other three are the 1967 GMC 3/4 ton power steering gearbox and frame

[N2TRUX]

You WILL need modify your 67 frame. The 67 trucks did not come with a traditional power steering set up. They used a small hydraulic ram mounted on the cross link. It was more of a power assisted steering, than full power steering.

I believe it can be accomplished with the old heat and beat method if your not comfortable with your welding skills.

[sduckworth13]

I could bang it in with a hammer or I could bolt the " bracket" on, but thats too easy. I want to try my hand at welding this section on...with assistance of course from a skilled welder. I never welded a day in my life, but I'm going to get lots of practice with this project.
Thank you,
Scott

[ctpchevy]

Well you learn something new everyday lol I never new that about the 67 so the frame is diff from 67-68 ???? Was it just the half tons ?? I had a 67 3/4 4x4 and the box bolted right up but that's deff good to know
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[N2TRUX]

Originally Posted by ctpchevy

Well you learn something new everyday lol I never new that about the 67 so the frame is diff from 67-68 ???? Was it just the half tons ?? I had a 67 3/4 4x4 and the box bolted right up but that's deff good to know

You got me on that one. I have never dealt ith it personally, just remember reading that the 67 frame doesn't have the P/S dimple. Hope I got that right....

[ctpchevy]

I think we are in the same boat lol cause now I'm not sure either lol I know that 67 I had had one I'll have to ask a few buddies lol I know for sure the 68 have the dimples I got 2 sitting here lol let I'm curious though let me know if you figure it out
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[ctpchevy]

That's a clean chevy you got there too n2trux
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[lolife99]

67 frames were different.
You can use one of the many aftermarket spacer kits to make the later boxes work.
68-72 frames are the same.

[N2TRUX]

Originally Posted by ctpchevy

That's a clean chevy you got there too n2trux...

Originally Posted by lolife99

67 frames were different.
You can use one of the many aftermarket spacer kits to make the later boxes work.68-72 frames are the same.

Thanks to you both...

[ctpchevy]

ahhhhhhhh thank you for putting that to rest lol i never knew the frame was different i guess i really only have really worked on 68 and up thats good to know thanks

[nvr53]

finnaly some one new more than trav .hahaha

[ctpchevy]

shut it jeff ....thats it im gonna make sure your frame is off more now than it was hahahahah