9 bolt rebuild sheets, Rev 2
Thread Starter
Supreme Member
iTrader: (7)
Joined: Mar 2001
Posts: 6,420
Likes: 5
From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
9 bolt rebuild sheets, Rev 2
A lot of people asked for the sheets with the rebuild instructions and specs that I copied and sent out a while ago. I didn't really hear back from a lot of people, so I want to know who got them, who didn't, and who wants them again. The file I sent out was a bit big so I reduced it down to be specific to the LSD unit and not to include the open 9 bolt carrier rebuild instructions.
The instructions are pretty straight forward, specs are listed, and if you check the link below, you can "see" what you're doing. These are GREAT shots of one of these posis taken apart and rebuilt. It's not that hard guys, it can be done.
http://www.umiacs.umd.edu/~mpikas/au...Formula/9Bolt/
Again, let me know who wants them. I'll try to post them somewhere on the net and give you a link to get there.
Ed
The instructions are pretty straight forward, specs are listed, and if you check the link below, you can "see" what you're doing. These are GREAT shots of one of these posis taken apart and rebuilt. It's not that hard guys, it can be done.
http://www.umiacs.umd.edu/~mpikas/au...Formula/9Bolt/
Again, let me know who wants them. I'll try to post them somewhere on the net and give you a link to get there.
Ed
I have been to the 9bolt.com , and at the point where i don't know if spending 900.00 to rebuild my 9 bolt is a wise idea , or just biting the bullet and buying a 9inch . My real question here is how much power has anyone seen go through a 9 bolt without breaking it . I my goal is to make close to 500hp and 500 foot pounds at the rearwheels .
Thread Starter
Supreme Member
iTrader: (7)
Joined: Mar 2001
Posts: 6,420
Likes: 5
From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Miles, who "owns" www.9bolt.com, runs a 427 BBC and doesn't have any problems with his 9 bolt.
BTW, it won't cost you $900 to REBUILD your posi. All you have to do is tear it apart, replace any parts that need it, and shim it a bit tighter. Miles has shims and so does Larry Burd. Shims and maybe springs, that's it.
Keep replying if you guys want them. If you want paper copies, I'm even willing to mail them out if anyone prefers, just send a SASE to my address. E-mail me privately for that.
Ed
BTW, it won't cost you $900 to REBUILD your posi. All you have to do is tear it apart, replace any parts that need it, and shim it a bit tighter. Miles has shims and so does Larry Burd. Shims and maybe springs, that's it.
Keep replying if you guys want them. If you want paper copies, I'm even willing to mail them out if anyone prefers, just send a SASE to my address. E-mail me privately for that.
Ed
Senior Member
Joined: Sep 2001
Posts: 850
Likes: 0
From: Damascus, OR, USA
Car: 1989 GTA
Engine: 383 Miniram AFR195
Transmission: Tremec TKO
Axle/Gears: BW 9 Bolt/3.70
Ed,
I would like to have the instructions if you would be so kind. It would be good to have them if needed in the future.
Thanks,
-Schultzy
I would like to have the instructions if you would be so kind. It would be good to have them if needed in the future.
Thanks,
-Schultzy
Trending Topics
Supreme Member

Joined: Feb 2000
Posts: 1,416
Likes: 0
From: Johnstown, Ohio
Car: 84 Z28
Engine: 355 (fastburn heads, LT4 HOT cam)
Transmission: 700R4
Axle/Gears: 9-bolt, 3.27
Me me me me! Count me in! I'd like a copy!
Have you considered submitting this stuff for a tech article?
Also, if I ever get it, I'm gonna have a site up that I would be happy to put it on.
Have you considered submitting this stuff for a tech article?
Also, if I ever get it, I'm gonna have a site up that I would be happy to put it on.
Last edited by JP84Z430HP; Jan 13, 2003 at 08:01 PM.
Thread Starter
Supreme Member
iTrader: (7)
Joined: Mar 2001
Posts: 6,420
Likes: 5
From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Thanks for the patience, guys. I'll get that file out soon.
I will do a tech article when I get around to actually rebuilding the thing, and also put pics up on my page.
Ed
I will do a tech article when I get around to actually rebuilding the thing, and also put pics up on my page.
Ed
Supreme Member
Joined: Nov 2000
Posts: 1,760
Likes: 0
From: Newark, DE
Car: 86' Z28
Engine: 355
Transmission: T-56
i'd like a list as well. I'm sure my gear setup guy will appreciate it when i bring him a pile of parts (assuming i acutally build a 9 bolt)
Eric higotoody@hotmail.com
Eric higotoody@hotmail.com
Supreme Member
Joined: Sep 2001
Posts: 1,355
Likes: 1
From: MN
Car: 2009 Pontiac G8 GXP
Engine: LS3
Transmission: 6L80E
Axle/Gears: 3.27
Me too! Thanks in Advance...since my engine and tranny are new, the rear end is the next on the list....
Please email to: adamstendahl@hotmail.com
Thanks again Ed...
Please email to: adamstendahl@hotmail.com
Thanks again Ed...
Senior Member

Joined: Sep 2002
Posts: 984
Likes: 55
From: Nebraska
Car: '89 Formula
Engine: 355
Transmission: 700R4
Axle/Gears: 9 bolt
I would appreciate a copy too. Thanks. formularpm@hotmail.com
I would like those. Momar01@insightbb.com
Thread Starter
Supreme Member
iTrader: (7)
Joined: Mar 2001
Posts: 6,420
Likes: 5
From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Thanks for all the replies guys. I'll be getting them out this weekend.
Ed
Ed
thanks ED. Yes I sell shims. A few forum members have them and loved em.
Mark P also rebuilt his unit twice. I rebuilt mine, and I will possibly pull it apart this summer again to make it tigher.
It's very doable....
Mark P also rebuilt his unit twice. I rebuilt mine, and I will possibly pull it apart this summer again to make it tigher.
It's very doable....
Senior Member
Joined: Sep 1999
Posts: 545
Likes: 0
From: Fairfax, VA
Car: 1987 Trans Am
Engine: LT1
Transmission: T-56
Axle/Gears: 10 Bolt SLP Torsen, 3.73 ratio
I archive info like this, so please send it my way....corry at unt.edu without the spaces and the at meaning @ I just don't want some e-mail bot scanning my e-mail address out of here... Thanks
I would definitly like a copy of that. Could come in handy one day. z28camaroman@hotmail.com thanks in advance.
matt
matt
Senior Member

Joined: Jul 2002
Posts: 631
Likes: 2
From: Saskatchewan
Car: 1992 GTA
Engine: LS1
Transmission: T56
Axle/Gears: 4.10
I would appreciate a copy of the info as well. Thanks in advance. intake68@hotmail.com
am i too late??
i just got a 9-bolt rear and would like to gather the most info possible about it.
transam_1984@yahoo.com
thanks
i just got a 9-bolt rear and would like to gather the most info possible about it.
transam_1984@yahoo.com
thanks
https://www.thirdgen.org/newdesign/t...tservice.shtml
I suggest reading the above article... and I sell the shims needed to accomlish the rebuild.
I suggest reading the above article... and I sell the shims needed to accomlish the rebuild.
Supreme Member

Joined: Feb 2000
Posts: 1,416
Likes: 0
From: Johnstown, Ohio
Car: 84 Z28
Engine: 355 (fastburn heads, LT4 HOT cam)
Transmission: 700R4
Axle/Gears: 9-bolt, 3.27
Wow! I can't believe I missed that article! It seems like it's actually a pretty easy job! Now I just need to find some time, and an extra set of hands to help me out and I'll get it done!
Thread Starter
Supreme Member
iTrader: (7)
Joined: Mar 2001
Posts: 6,420
Likes: 5
From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Yes that article is really good. Karl knows his stuff. If you print out the article and then go to Mark's page (link in my first post) the pics he put up will help you understand and "see" what you're doing.
I apologize for the holdup, we had a minor setback in the family, so I haven't gotten the file out yet. Sorry guys, I'll try to tonight.
Ed
I apologize for the holdup, we had a minor setback in the family, so I haven't gotten the file out yet. Sorry guys, I'll try to tonight.
Ed
Supreme Member

Joined: Feb 2000
Posts: 1,416
Likes: 0
From: Johnstown, Ohio
Car: 84 Z28
Engine: 355 (fastburn heads, LT4 HOT cam)
Transmission: 700R4
Axle/Gears: 9-bolt, 3.27
It sounds like it should be a walk in the park for someone that has changed an open carrier before! I'm just starting to get into differential's at work, before all I had done is simple stuff like axle seals and bearings.
Thanks for the info!
Thanks for the info!
thozim@bellsouth.net IF YOU DON'T MIND!!!!!
Thread Starter
Supreme Member
iTrader: (7)
Joined: Mar 2001
Posts: 6,420
Likes: 5
From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Ok boys...check your mail and let me know if ya'll got 'em OK. Word document.
Anyone who did NOT get them, let me know. There were 2 or 3 of you guys who said "Yes" that did not leave me an e-mail address or did not have one listed in your profile.
Lemme know.
Ed
PS: and some of you guys need to make room:
Message from yahoo.com.
Unable to deliver message to the following address(es).
<micdoctr@yahoo.com>:
Sorry your message to micdoctr@yahoo.com cannot be delivered because it is too large.
<transam_1984@yahoo.com>:
Sorry your message to transam_1984@yahoo.com cannot be delivered because it is too large.
Anyone who did NOT get them, let me know. There were 2 or 3 of you guys who said "Yes" that did not leave me an e-mail address or did not have one listed in your profile.
Lemme know.
Ed
PS: and some of you guys need to make room:
Message from yahoo.com.
Unable to deliver message to the following address(es).
<micdoctr@yahoo.com>:
Sorry your message to micdoctr@yahoo.com cannot be delivered because it is too large.
<transam_1984@yahoo.com>:
Sorry your message to transam_1984@yahoo.com cannot be delivered because it is too large.
Last edited by ebmiller88; Jan 22, 2003 at 06:42 AM.
This might be kind of late but I would love a copy if you could get it out. Mayer.117@osu.edu. Thanks -John
Thread Starter
Supreme Member
iTrader: (7)
Joined: Mar 2001
Posts: 6,420
Likes: 5
From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
OK, sounds like it was successful.
Anyone who didn't get them, leave your e-mail address below and I"ll send them to ya. I will send them out as needed.
Glad to help guys, see ya in Frederick in June!!!
Ed
Anyone who didn't get them, leave your e-mail address below and I"ll send them to ya. I will send them out as needed.
Glad to help guys, see ya in Frederick in June!!!
Ed
Member
iTrader: (1)
Joined: Jan 2003
Posts: 319
Likes: 0
From: Chicago, IL
Car: 2007 Volvo S60R, 2005 Audi A4
Engine: 300HP 2.5L I5, 200HP 2.0L I4
Transmission: TF-80SC, Getrag 6 speed
Axle/Gears: 3.33:1, 3.54:1
I would like to get a copy of those sheets if you could. My e mail is Mayer.117@osu.edu Thanks John
Thread Starter
Supreme Member
iTrader: (7)
Joined: Mar 2001
Posts: 6,420
Likes: 5
From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
OK, sent out the 2nd batch to those who asked again...and Larry.
Lemme know...Ed
Lemme know...Ed
Senior Member

Joined: Jul 2002
Posts: 631
Likes: 2
From: Saskatchewan
Car: 1992 GTA
Engine: LS1
Transmission: T56
Axle/Gears: 4.10
....hey ED it looks like my email may have been one of those that was missed. intake68@hotmail.com
Thx again!!!!
Thx again!!!!
Supreme Member

Joined: Feb 2000
Posts: 1,416
Likes: 0
From: Johnstown, Ohio
Car: 84 Z28
Engine: 355 (fastburn heads, LT4 HOT cam)
Transmission: 700R4
Axle/Gears: 9-bolt, 3.27
Sorry ed, but my ISP was having issue last night, and I didn't get it, and couldn't get a post in before you sent out the second batch. Looking back, it seems that I left my email out!
Looks like my e mail got missed too. Thanks in advance
Mayer.117@osu.edu
Mayer.117@osu.edu
Guest
Posts: n/a
while it's out I might as well. drain89@netacs.net thanks!



