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Old 03-01-2003, 06:52 PM   #1
rin68
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rear end Qs??

Picked up a rear end core to build up today, started to strip everything down.....hit a hangup. When I went to remove the axles, I took out the lock screw but the cross shaft will not come out of the carrier. It's a stock Chevy open diff., anyone have any ideas on what could be holding it up or am I completely missing something??

Also anyone know of a 12 bolt truck specific rear end rebuild guide, I have a couple generic type things, but nothing for just the 12 bolt Thanks
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Old 03-01-2003, 07:05 PM   #2
crazy longhorn
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The lock screw has a smooth end on it (no threads), approx 1 1/2" long..........did it all come out?
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Old 03-01-2003, 07:08 PM   #3
rin68
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yeah, the whole thing came out. can the cross shaft go in/out on either end of the carrier? it will wiggle front/back but not left/right (if it was installed in a truck)
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Old 03-01-2003, 08:35 PM   #4
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Either end will do.
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Old 03-01-2003, 09:22 PM   #5
da-burb
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Quote:
The lock screw has a smooth end on it (no threads), approx 1 1/2" long..........did it all come out?
double check this. The last one I had trouble with was 3/4" shorter than it should have been. The last 3/4" was still in the pin and kept it from moving more than a little bit in or out. If I had known it was in there I would have tried a magnet before I used a 2 pound hammer and a big punch. I did get it busted out of there without mashing my hand in the process.
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Old 03-01-2003, 09:58 PM   #6
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Same here

Also on my 70 the pin will only come out 1 way (I'm serious).This is the only 1 I have that is like that
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Old 03-01-2003, 11:47 PM   #7
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Sometimes the pin varnish's up, and can be a bit tight to remove.
I'm working on a 12 bolt now that was that way, just take your time and try to clean around the pin or use brake cleaner to help
brakeup the varnish. Good luck
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Old 03-02-2003, 06:35 PM   #8
rin68
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thanks for all the help, I looked closer at the lock screw and it does look like some of it broke off. how far into the cross shaft does the lock screw go? now i just need to find a small enough magnet or something to dig it out of the carrier.....or just bust out the BFH to pound the cross-shaft out
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Old 03-02-2003, 07:13 PM   #9
crazy longhorn
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Well, the hole goes all the way through the cross pin.......i havent measured the depth, but beleive the retainer bolt/pin also goes into the carrier on the other side. They can be a pain.....goood luck,crazyL
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Old 03-03-2003, 03:27 PM   #10
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Somebody sells a tool now for getting this out. Check with Randy's Ring and Pinion. Broken shaft screws are a PITA.
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Old 03-03-2003, 03:45 PM   #11
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if its not the bolt broke off check for a groove where the spider gears wear, makes a notch that holds the pin from sliding out
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