73-87chevytrucks.com
73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: ken4444 on April 20, 2018, 10:05:16 pm
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My C10 has a spring-under conversion. I happened to notice the casting numbers on the differential housing are upside down. What's the likely story here? Is this legit, a total hack, or something in between? I'm thinking it doesn't matter from a mechanical perspective, but my experience here is minimal.
(https://imgur.com/kuQiiKq.jpg)
(https://imgur.com/FW8Rimc.jpg)
(https://imgur.com/iDTSM4C.jpg)
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It's flipped, meaning over the spring, not upside down. If the vent hose was pointing toward Earth and in fact upside down, you'd be going backwards when you go forward.
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Good point on the vent hose. That is in the right place. Is it common to see the casting numbers upside down on GM or other axles?
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Depends on whether you're standing on your feet or on your head.
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Another question: Are the axle shock mounts OEM?
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no they are aftermarket. Probably came with the flip kit
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no they are aftermarket. Probably came with the flip kit
So this begs the question... if I move the axle back under the springs, what modifications will be required?
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Shocks with the correct length/travel. Most likely 2" longer.
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Shocks with the correct length/travel. Most likely 2" longer.
I'm also thinking that the pinion angle will require some consideration as well.
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shouldnt if he utilizes the stock spring pads
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shouldn't what?
Shocks with the correct length/travel. Most likely 2" longer.
I'm also thinking that the pinion angle will require some consideration as well.
Yes you should always check the pinion angle after suspension or driveline mods
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if he uses the stock axle perches that are still on the axle, the pinion angle should be back at the stock location