Axle Swap - '70 3/4 Jimmy to '83 K10

[Mikeyworks]

In my search for tires, I found a pretty good looking deal on a set of tires, wheels, and 3/4 axles.
The axles are off a '70 GMC Jimmy and appear to be 3/4 ton or 1 ton since they're 8 lug.

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The rear axle needs to be rebuilt as the owner/seller shared this picture with me:

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Looking at this it looks like a c-clip let loose. He said he didn't open them up.

From a logistical stand point, how hard would it be to swap out these axles with the ones on my K-10?
I can rebuild that mess, not a problem, but would most of the spring perches, shock mounts, brake lines, pinions, etc. match?

The pinion/u-joint is the biggest one as I have heard through other discussion that the 1/2 ton and 3/4 ton have different pinion connections.

Many thanks in advance!

 

[CSFJ]

Your video did not transfer. I didn't think 3/4 to rear axle ran a c-clip in '70. Thought those were all full float back then, with a 3/4 not getting the c-clip until the semi floats showed up in the eighties.

 

[Mikeyworks]

CSFJ - thanks for the reply. I'll do some searching to figure out what may have broken. I hope it can be an easy fix so I can swap these over to my K-10....

 

[Honky Kong jr]

I hope you didn't buy that. That spindle is junk. Threads look to be gone and the bearing surfaces are wasted.

 

[Mikeyworks]

I haven't bought it yet...can't that be rebuilt?

 

[Honky Kong jr]

maybe 50s early 60s GMC....

 

[Honky Kong jr]

I haven't bought it yet...can't that be rebuilt?

It's part of the housing.

 

[Mikeyworks]

Part of the challenge is I wanted to swap over the axle too...the wheels and tires are worth the price, but I'd like to get it all in one fell swoop.

 

[Honky Kong jr]

Part of the challenge is I wanted to swap over the axle too...the wheels and tires are worth the price, but I'd like to get it all in one fell swoop.

Holy crap some one on the eastern part of the country. Sorry ....lol

 

[Mikeyworks]

It's part of the housing.

So, If you burn up a bearing, and scar the spindle, the axle is toast?

 

[Mikeyworks]

Ok, so after asking my questions, I did some quick research.
I understand now that the spindle on the 14 Bolt axle is pretty much an integrated element of the axle. You can replace it, but it basically requires cutting off the end of the axle and the welding on a replacement.

In this case, I may get the setup shown, fight him a little on price, and go to my local yard and a better rear axle/housing.

Thoughts? I really appreciate the rapid education! Nothing like a vertical learning curve!

 

[CSFJ]

As long as you go into it knowing that axle is not serviceable as is, you should be ok. Tbe other thing, I would mention is to look for one of the newer corp 14 bolt full float axles. If I remember correctly, the rear on the set you posted was a dana rear end? I'm not 100% on that, but something about the 67-72 trucks stands out in my mind about the axles. Do your research.

 

[Mikeyworks]

CSFJ - yeah, more digging on http://www.pirate4x4.com/tech/billavista/14b_bible/index.html helped me find that the pre-73 axles are different than the 73 & up axles.

This may be more of a hassle than its worth. The wheels/tires are probably worth the asking price though...if I had the cash laying around.

 

[Honky Kong jr]

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