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Project "Blown HD" my 6/8 drop/shortblock/heads/cam/blower/tranny install

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Old 11-02-2006, 12:32 AM
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Originally Posted by CHEVY6000VHO
Looks like I will be placing some marine grease there before assembly. I wonder if aerosol lithum grease will get in there with them installed?
Too bad a grease sert couldn't be added at the eye.
Sounds like a possible problem.

Jim
aerosal lithium does zero for me
The problem is less noticable on a 1500 leaf pack because there are less leaves at that point where the caltrac side plates pivot on.
Old 11-02-2006, 10:43 AM
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anyone else have any insight on this or do I need to go to a driveline shop?
Old 11-02-2006, 02:08 PM
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for the record and before I start messing with ****, here are all my ride height measurements(Caltracs still loaded)

driver front(38 5/16)


driver rear(41 8/16)


pass front(38 11/16)


pass rear(41 13/16)
Old 11-02-2006, 02:41 PM
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drivers rear/unloaded caltracs (41 4/16)


pass rear/unloaded caltracs (41 10/16)





front measurements = no change

Last edited by moregrip; 11-02-2006 at 02:54 PM.
Old 11-02-2006, 03:36 PM
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4/16....8/16....10/16?
Old 11-02-2006, 03:44 PM
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now here's an interesting find, with the caltrac's unloaded ALL angles changed as follows:
...............................caltracs........... .............unloaded
diff angle.....................93*..................... ..........92*
rear d/s angle...............98*........................... ....96*
front d/s angle..............95*............................ ...93*
trans angle...................95*....................... ........93.5*

pinion angle w/caltracs loaded -5* (diff 3* up)
pinion angle w/caltracs unloaded -4* (diff 2* up)

is my math correct here folks?
Old 11-02-2006, 04:46 PM
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Sounds right. I figured you would have had the answers by now......
I think I will keep my o.e. hangers and just shim my axle to a pinion angle of -3 or -4. Lets just hope the 2* shims that I have will allow these angles.
Caltracs will be installed tomarrow.

Jim
Old 11-02-2006, 05:34 PM
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Cool

Originally Posted by moregrip
now here's an interesting find, with the caltrac's unloaded ALL angles changed as follows:
...............................caltracs........... .............unloaded
diff angle.....................93*..................... ..........92*
rear d/s angle...............98*........................... ....96*
front d/s angle..............95*............................ ...93*
trans angle...................95*....................... ........93.5*

pinion angle w/caltracs loaded -5* (diff 3* up)
pinion angle w/caltracs unloaded -4* (diff 2* up)

is my math correct here folks?
That looks correct to me.

What reference surface are you using to measure your pinion yoke face? In theory you are supposed to pull the axle and measure on the surfaces that the u-joint mounts to. If you are happy that your diff angles are accurate then those calculations look good to me.
Old 11-02-2006, 05:54 PM
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Originally Posted by Mort
That looks correct to me.

What reference surface are you using to measure your pinion yoke face? In theory you are supposed to pull the axle and measure on the surfaces that the u-joint mounts to. If you are happy that your diff angles are accurate then those calculations look good to me.
I used the the flat of the U-joint outer bearing surface



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Old 11-02-2006, 05:55 PM
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got the bushings out of one 1500 leaf pack, starting on the next


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