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07-07-2012, 04:29 PM
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#1 |
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Registered User
Join Date: Jan 2011
Location: Austin, TX
Posts: 632
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Rear end slop
Maybe I just used bad search terms but I couldn't find good info on how much slack should be in my 12 bolt 4.10 rearend. When we reinstalled my axles after the brake upgrade I was messing around and the yoke will spin I would guess ~3/4" before the wheels actually engage. What type of tolerances are normal here, and is there other problem areas if tho is out of tolerance besides a rebuild/resetting of gear lash?
Posted via Mobile Device
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www.tomthetruck.blogspot.com <-- Aka build thread. |
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07-07-2012, 06:59 PM
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#2 |
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Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: Rear end slop
I have not actually measured the rotation as you did but it seems to be close to normal when you consider that the spider gears , axles, and ring/pinion gears are part of the looseness. If no one comes up with more information I will get a measurement like yours off of a 12 bolt.
Jim
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1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC Last edited by JimKshortstep4x4; 07-07-2012 at 07:01 PM. Reason: Changed wording |
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07-07-2012, 07:05 PM
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#3 |
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Overdrive club
Join Date: Sep 2007
Location: apache junction, arizona
Posts: 819
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Re: Rear end slop
That is pretty close,the spider gears have a lot of slop in them!If it has a posi,whole different story,lol!
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1971 c-10 1951 3100 chevy 1970 chevy c-30 Sold! |
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07-07-2012, 07:25 PM
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#4 | |
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Registered User
Join Date: Jan 2011
Location: Austin, TX
Posts: 632
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Re: Rear end slop
Quote:
Posted via Mobile Device
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www.tomthetruck.blogspot.com <-- Aka build thread. |
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07-08-2012, 01:26 AM
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#5 |
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Registered User
 Join Date: Dec 2007
Location: Modesto, Ca
Posts: 411
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Re: Rear end slop
More than likely the spiders are excessively worn. You can purchase a spider gear kit to replace them which should tighten things up assuming ring and pinion are in good shape.
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07-08-2012, 06:28 AM
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#6 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: Rear end slop
GM factory service manual has all specs and tolerances for ythe rears listed
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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