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Everything I know about 9-Bolt Rearends!

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Everything I know about 9-Bolt Rearends!

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Old 09-18-2018, 08:22 AM
  #251  
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Re: Everything I know about 9-Bolt Rearends!

Originally Posted by howie099 View Post
9 Bolts came on 86-89 FBodies. You can get all parts and more info from 9bolt.com.
This sounds correct but not all cars got them. I know some IROC's did and probably a lot of others. But V6 & V8 Camaros did not automatically get them and some Z28's did not. Not sure about the Firebirds.

FYI- I looked into the 8.8 and a lot of other swaps for rears and ended up going with a Moser 9" housing and a Quick performance third member. It has taken a beating for the past year and a half at the track and is still quiet and reliable on the street. I did not notice any loss of efficiency as generally associated with the 9" gear set.
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Old 09-18-2018, 09:40 AM
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Re: Everything I know about 9-Bolt Rearends!

I spent about $700 rebuilding and upgrading my 9 bolt. My 86 TA has one which I am running right now and a 89 firebird formula I had also had a 9 bolt w/pbr rear brakes that I look before I got rid of that one. Not all of them had them it was an upgrade or if you kept on blowing up the 10 bolt under warranty. I couldn’t swing the $3500 for 9” right now.
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Old 09-19-2018, 01:38 PM
  #253  
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Re: Everything I know about 9-Bolt Rearends!

Originally Posted by howie099 View Post
I couldn’t swing the $3500 for 9” right now.
I hear you and that is about what I spent all in for the 9",
However, if I were running an auto I would have stayed with the 9 bolt. It is a great rear end and even has some advantages over a stock 9". I was looking to upgrade axels and some other internal improvement which would have run the cost up closer to $2k so it wasn't as big of a step for me. The 9" has so much aftermarket support and I figured the money was well spent since I run it at the strip a lot on slicks and a stick shift.
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Old 10-06-2018, 04:55 PM
  #254  
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Re: Everything I know about 9-Bolt Rearends!

ok im reading things and confused. Does the eaton true track conversion for the 04-06 gto work in our rear ends? I have a 9 bolt with a 3.45 gear set and the cone is worn into the carrier and jammed up. Looking at the 9bolt.com tru-trac posi. and it looks similar to the Detroit trutrac.
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Old 10-06-2018, 05:53 PM
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Re: Everything I know about 9-Bolt Rearends!

The offset is different on the a GTOs . It’s in another post. You can get the diff at a better price right from one of the supplies Supa F Spares from Australia. I just paid with shipping to Chicago right under $500 for the truetrac.
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