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Old 07-09-2007, 08:48 PM
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"S" springs in a GM 8.5 Posi

Is it easy to install the S spings in a rearend that does not have them ? 72 Nove Posi.

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Old 07-10-2007, 02:24 PM
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You really don't need the preload spring in there. The clutches do all the work of a posi.
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Old 07-10-2007, 03:32 PM
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rear

So you are saying that it is a posi, but the preload spring is missing??


Keith
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Old 07-10-2007, 09:44 PM
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Quote:
Originally Posted by MIKE FROM SM
You really don't need the preload spring in there. The clutches do all the work of a posi.
But doesnt the spring help keep everything in position right
Shane
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Old 07-11-2007, 08:08 AM
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No, the pin does.
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Old 07-11-2007, 09:04 AM
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Posi Pre-Load spring.

The reason I ask, there is play in the rearend when you grab the drive line and twist back and forth. Less then 3K mioes ont he rebuild. Also there are two springs listed as replacements for a rebuild, 50 and 75 lbs.
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Old 07-11-2007, 09:10 AM
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Yes the guy who I bought the rearend from said they were not needed either.

I see others say teh same thing, not needed.

I guess I will take the cover off and see what else may be going on.

Please keep the thread going.
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Old 07-11-2007, 09:52 AM
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There should be some slop between the ring gear and pinion gear (back lash). Does it make any noise? If not, don't worry about it.
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Old 07-11-2007, 03:39 PM
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No noise, just seems loose. When I installed the rearend it was nice and tight. No slop/looseness.

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Quote:
Originally Posted by MIKE FROM SM
There should be some slop between the ring gear and pinion gear (back lash). Does it make any noise? If not, don't worry about it.
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