LT1-LT4 Modifications 1993-97 Gen II Small Block V8

I hate my crank hub...

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Old Jul 23, 2007 | 04:32 PM
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Default I hate my crank hub...

There has to be a tip someone can give me to get that damn thing on easier.

I hate tryin to knock it on with a rubber mallet.

Any tips
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Old Jul 23, 2007 | 04:43 PM
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you need a 7/16" threaded rod, Large washers, I used a stepped proceedure, to start small and work up to the hub, and 2 nuts to thread on.

Once the hub is at least on the crank snout, sink the rod down to the crank bottom, put the washers on, keep them even and level, almost like a pyramid, then a nut to slowly draw the hub on the crank, use oil to help.

I got the rod at a speciality place, it only needs to be 6" max and fine thread of course.
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Old Jul 23, 2007 | 05:29 PM
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thats how i did it.. works really good...
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Old Jul 23, 2007 | 08:30 PM
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Originally Posted by BsGreenZ
thats how i did it.. works really good...
Yea I even got a GM tool but the aftermarket crank had the threads soooo deep I wouldnt use it.
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Old Jul 23, 2007 | 08:50 PM
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https://ls1tech.com/forums/showthrea...=746548&page=2

towards the bottom

edit: err middle
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Old Jul 23, 2007 | 08:59 PM
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Using the right tools makes every job easier.
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Old Jul 23, 2007 | 09:31 PM
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Originally Posted by BlackScreaminMachine
you need a 7/16" threaded rod, Large washers, I used a stepped proceedure, to start small and work up to the hub, and 2 nuts to thread on.

Once the hub is at least on the crank snout, sink the rod down to the crank bottom, put the washers on, keep them even and level, almost like a pyramid, then a nut to slowly draw the hub on the crank, use oil to help.

I got the rod at a speciality place, it only needs to be 6" max and fine thread of course.
+1 same way I did it to change my front seal
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Old Jul 24, 2007 | 10:59 AM
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Originally Posted by BlackScreaminMachine
you need a 7/16" threaded rod, Large washers, I used a stepped proceedure, to start small and work up to the hub, and 2 nuts to thread on.

Once the hub is at least on the crank snout, sink the rod down to the crank bottom, put the washers on, keep them even and level, almost like a pyramid, then a nut to slowly draw the hub on the crank, use oil to help.

I got the rod at a speciality place, it only needs to be 6" max and fine thread of course.

Do NOT use a mallet for this or the front main bearing may get damaged.
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Old Jul 24, 2007 | 04:10 PM
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Originally Posted by BlackScreaminMachine
you need a 7/16" threaded rod, Large washers, I used a stepped proceedure, to start small and work up to the hub, and 2 nuts to thread on.

Once the hub is at least on the crank snout, sink the rod down to the crank bottom, put the washers on, keep them even and level, almost like a pyramid, then a nut to slowly draw the hub on the crank, use oil to help.

I got the rod at a speciality place, it only needs to be 6" max and fine thread of course.


I guess i don understand this.....I've got the hub about 3/4 of the way on. I was using a rubber mallet and i had some oil on it ,it's just taking forever.
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Old Jul 24, 2007 | 04:54 PM
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You dont beat the hub on, you push it on with a nut on a threaded rod. You use the treaded rod as a stud in the crank. Then use the nut and spacer to push or pull, however you look at, the hub on the crank. Dont use the stock bolt or you'll damage the crank threads. I would not beat it on either. Get the correct tools.

Like this:
http://www.jegs.com/webapp/wcs/store...51803_-1_10783
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Old Jul 24, 2007 | 05:35 PM
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think of its like this, as opposed to the bolt that holds the the hub in place, the rod acts like a post, fully supported and using all the crank threads. the washers go over the opening of the hub and the nut is used to draw it on.
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Old Jul 24, 2007 | 08:57 PM
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Originally Posted by BlackScreaminMachine
think of its like this, as opposed to the bolt that holds the the hub in place, the rod acts like a post, fully supported and using all the crank threads. the washers go over the opening of the hub and the nut is used to draw it on.

I SEE SAYS THE BLIND MAN
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Old Jul 24, 2007 | 10:34 PM
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I put mine in the oven at 350* for 15 minutes first .Makes a world of difference.
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Old Aug 14, 2007 | 04:47 PM
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I need to do this to, just to get this straight, you thread the rod completely into the crank till it can't go no more?
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Old Aug 14, 2007 | 06:09 PM
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Originally Posted by XzWhiteGhstzX
I need to do this to, just to get this straight, you thread the rod completely into the crank till it can't go no more?

Yep, then I back it out 1/4 to a 1/2 of a turn!
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