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Old Sep 27, 2010 | 06:07 PM
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Default fast ? guys

i have a stock 98 Z28 6spd rear end is it posi or open??? i figure it would be open.....
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Old Sep 28, 2010 | 07:16 AM
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its a posi rear
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Old Sep 28, 2010 | 10:14 AM
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Originally Posted by Detroitmuscle
its a posi rear


well most rear ends i c with the posi doesnt show th etwo spider gears like mine does i'll have pic's of the rear later on today....
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Old Sep 28, 2010 | 10:20 AM
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if its the original rear end on any 4th gen m6 z28 it has posi, nothing else to argue.they didn't come any other way.
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Old Sep 28, 2010 | 11:52 AM
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98s' posi is Auburn which has spiders visible just like an open would look,but if you see springs,then it's a posi. the springs are for the cone clutches of an Auburn.
the other rearends you see are probably 99 + later Torsens LSDs which don't have spiders but a gear arrangement.
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Old Sep 28, 2010 | 12:36 PM
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Originally Posted by FirstYrLS1Z
98s' posi is Auburn which has spiders visible just like an open would look,but if you see springs,then it's a posi. the springs are for the cone clutches of an Auburn.
the other rearends you see are probably 99 + later Torsens LSDs which don't have spiders but a gear arrangement.


well then its open cause i know it doesnt have springs or nothin.... what did the open rear end come out of? cause the guy i got it from he said it was the original rear end out of the 98 i had that he just took it out....
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Old Sep 28, 2010 | 01:21 PM
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sounds like he pulled a fast one on you, get pics up when you can for confirmation.
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Old Sep 28, 2010 | 01:30 PM
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All the 6-speed cars came with a posi IIRC all the v8 cars came with them. Most v6 cars came with open dif and had a posi as an option
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Old Sep 28, 2010 | 04:17 PM
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Originally Posted by Detroitmuscle
sounds like he pulled a fast one on you, get pics up when you can for confirmation.


he pro could have its been a year since i looked at the rear end whe i got it...
but here are some pic's maybe help







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Old Sep 28, 2010 | 04:30 PM
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definately open....

here for comparison, is a rear end out of a 98 Trans Am with the Auburn

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Old Sep 28, 2010 | 04:34 PM
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Originally Posted by Detroitmuscle
sounds like he pulled a fast one on you, get pics up when you can for confirmation.
Originally Posted by bww3588
definately open....

here for comparison, is a rear end out of a 98 Trans Am with the Auburn



yea i thought it was...wasnt for sure cuz i bought the two spider gears and pin to fix that 1 to put in my Z28 i have now...but those are 3:42's doent make since to me....
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