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  1. S

    2.5 Ton Axles for 1974 K20

    I've made a decision to get rid of the wimpy 10 bolt in the front of my K20. The truck already had 37" mil tires, however I am probably going even bigger since the truck is now taking an 8" spring lift. I originally looked at a D60 for the front, but after researching them, and reading some...
  2. S

    Differential setup

    Hey fellers...need some insight and opinion here...take a look at these pics and you fellas tell me where you think I'm sitting. Backlash is already at around 5 thousandths...just trying to get contact pattern in the green.
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    Gentlemen, take a look at this wierdness...odd "crack" in diff housing

    Got the axle housing emptied out for rebuild and was cleaning it up this morning. After some cleaning, I noticed the "cracks" youʻll see in the pictures. Now looking at the drivers side, that one looks like itʻs there for a reason, cast during manufacturing. The passenger side however...
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    8.5" 10 Bolt Outer Axle Seals / Modification

    Iʻm specifically asking about outer axle tube seals for a 10 bolt front. Iʻve found them for D44, but parts arenʻt interchangeable until knuckle and out from what I know. I just cleaned my tubes out and it had a massive buildup of mud and gunk that I had to clean out. I would really like to...
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    GM 8.5" 10 Bolt Rebuild / Knowledge, Opinions, and Advice Requested

    As I've mentioned in a few posts already, I am rebuilding a 14 Bolt axle that will go in the rear of my 1974 K20, and a 8.5" 10 bolt that will go in the rear. I wanted some different perspectives on a few things. I am NOT a rock-crawler, and nor do I intend to be with this truck. This will be...
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    GM 8.5" 10 bolt nightmare.

    Hey all, So Iʻm new here, as in just posted an intro before this. And Iʻm a new K20 owner...which is what my question is about. Specifically the GM 10 botl front axle. Iʻve got it torn down about 85% but am stuck on removing one last ball joint. Itʻs the one thats right by the steering arm. Do...
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    New K20 owner!

    Hi all! Iʻm Scott and I just recently bought a 1974 K20. It came with a brand newly built 350 bored 30 over and replacement axles for the front and rear...although those need work and are the current effort. Annnd that brings me to precisely why I joined this group...I needed another forum to...

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