Eaton G80 Gov Lock diff in GM trucks ? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 02-20-2011, 04:59 AM
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i have a suburban and the gov lock's spider gears grenaded on me last week. is it possible for me to install something like this

http://www.summitracing.com/parts/PWT-1921-LR/?rtype=10

to get it back on the road? its my daily driver.

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Old 02-20-2011, 05:34 AM
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According to the application and Power-Trax info, it can be installed. What kind of damage was done when your spiders came apart?
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Old 02-20-2011, 05:44 AM
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just the spiders theyre done, ring and pinion is fine. the block in the center split dead in half but other than that i didnt see anymore damage than that.
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Old 02-20-2011, 11:16 AM
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No it won't fit. It only fits in an open differential case. You would also need to buy an open case if you wanted to do that. I think you would be better off just replacing it with a full case limited slip.
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Old 02-20-2011, 12:29 PM
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91burb,

Welcome to Hotrodders.com

Please so not hi-jack a 4 yr old thread with your new question. Start a new thread.

I have split off your question into this new thread for answers just for your application.

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Old 02-20-2011, 01:30 PM
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The Powertrax(or the similar Lock-Rite) won't fit into your broken Gov-Loc differential case. You would need to procure the correct stock open differential to install the Powertrax into.
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Old 02-20-2011, 03:02 PM
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This is correct, there isn't a Power Trax that fits the Gov Lock. If you only broke the 2 pinion gears then that's an easy fix that I can help you with. If you also broke the axle gears then I'll have to see if I have any. I've got a few boxes full of Gov Lock parts. They break pretty often. You do need this tool to disassemble it.
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Old 02-21-2011, 06:40 AM
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It appears PowerTrax needs to update their information:

Limited-slip/posi and centrifugally activated differentials can be as easily upgraded with a POWERTRAX® Extreme Traction System as can open differentials. When upgrading a limited-slip/posi differential, it is only necessary to remove preload springs before removing the spider gears, and to remove the friction plates after removing the side gears. For centrifugally activated differential upgrades, it is necessary to remove the governor counter weight and tumbler assembly before removing the spider gears (GM Gov-Lock). POWERTRAX® provides a special tool with each centrifugally activated differential model that easily facilitates this step.
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Old 02-21-2011, 07:46 AM
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I use a modified air hammer driver to remove the Gov-Lock bushings. Its about 1/2" diameter with a semi-circular relief in the end the diameter and length of the bushing. Takes about 3 seconds to remove as they are not in there very tight.

I would still be afraid of the Gov-Lock case with its many thin sections and material that seems to be low strength cast iron.
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Old 02-21-2011, 09:06 AM
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Hi
Is it a 6lug or 8lug if it a six lug you may want to upgrage to a 14bolt six found on light duty 3/4ton trucks if its and 8lug replace with a ff 14bolt, I had a 10 bolt they are prone to granade not enough meat in the gears>


Tom
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Old 02-21-2011, 04:26 PM
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Quote:
Originally Posted by 1ownerT
It appears PowerTrax needs to update their information:

Limited-slip/posi and centrifugally activated differentials can be as easily upgraded with a POWERTRAX® Extreme Traction System as can open differentials. When upgrading a limited-slip/posi differential, it is only necessary to remove preload springs before removing the spider gears, and to remove the friction plates after removing the side gears. For centrifugally activated differential upgrades, it is necessary to remove the governor counter weight and tumbler assembly before removing the spider gears (GM Gov-Lock). POWERTRAX® provides a special tool with each centrifugally activated differential model that easily facilitates this step.
Where did you get this information?
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Old 02-21-2011, 05:14 PM
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http://www.richmondgear.com/powertra...tallation.html
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Old 02-21-2011, 07:05 PM
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How about that. Learn something new every day. I didn't know they were available for the Gov Lock.
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Old 02-24-2011, 06:24 PM
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big gear head

can you check that box of g 80 parts i need 28 spline spider gears for a 8.5 also a cross pin and bolt thanks
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