Results 1 to 17 of 17

12 bolt and 9 inch questions

This is a discussion on 12 bolt and 9 inch questions within the Drivetrain forums, part of the LSx Technical Help Section category; I am at that point where I've built the trans now the engine and I need to start sizing up ...

  1. #1
    Senior Member JaycenK's Avatar
    Join Date
    Nov 2008
    Location
    Holiday,FL
    Age
    40
    Posts
    1,378

    Green
    1997 Camaro Z-28

    12 bolt and 9 inch questions

    I am at that point where I've built the trans now the engine and I need to start sizing up the 12 or 9inch rear. What costs are thier in swapping it? and what do they cost? where do you get them? say what can I get away with now and then add on later. I am a 97 with 383 and LE2 heads and cam, trans is good to 500hp I don't go to the track that much mostly street, ASR and ABS that I want to keep for the wife. I have stock LT1 rear brakes but would like to go LS1 or bigger to go with the LS1 front brakes. Talk to me What are my options? I am thinking of doing this in the next few months. What pars can I reuse and what needs or should be swapped or added to my order of a rear or to the car. thanks

  2. #2
    Chief of his tribe! LSCyaL8R's Avatar
    Join Date
    Mar 2008
    Location
    NYC
    Posts
    1,460

    Navy Blue Metallic
    2000 T/A Firehawk M6

    This thread is relevant to my interests.

    I too am in the market for a Moser 9 inch but don't want to lose my ABS. I'm certainly going for reloc brackets and LCA's at the same time as the rear.... not so hot on the PHB because I want to go to a Watts link since it's my belief that they do a better job of maintaining center through all phases of driving.

    So my questions are much the same.

    I want a better rear... I want to keep my ABS and I have no clue how to go about getting all the right parts together to make it work right.

  3. #3
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,576

    Black & Blue
    '02 WS.6 / '07 Suburban

    I bought a Moser 12 bolt in December for our car. Upgraded with a True Trac, 33 spline axles, welded sway bar brackets and relocation brackets, and set up for 4 channel ABS, it was $2,800. Pics of what it looks like and the install on our car: Bidding my rear adieu!

    The only issue with the install was modification of the parking brake brackets to accomodate the relocation brackets. That is detailed in this thread: 12 Bolt Install Question Other than that, it was a fairly straightforward swap. I did go with a PST driveshaft that is about 1/2" shorter than stock. There was not a lot of clearance off the back of the trans as the 12 bolt housing is larger.

  4. #4
    Senior Member JaycenK's Avatar
    Join Date
    Nov 2008
    Location
    Holiday,FL
    Age
    40
    Posts
    1,378

    Green
    1997 Camaro Z-28

    I see that it had just the carrier in it? you had to put the axles and bearings in? I could do that too but I was hopeing for something you just fill with oil, mod you E brake brakets and bolt on your brakes and put it in. Is it possible to get them like that or is it really expensive that way?

  5. #5
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,576

    Black & Blue
    '02 WS.6 / '07 Suburban

    Quote Originally Posted by JaycenK View Post
    I see that it had just the carrier in it? you had to put the axles and bearings in? I could do that too but I was hopeing for something you just fill with oil, mod you E brake brakets and bolt on your brakes and put it in. Is it possible to get them like that or is it really expensive that way?

    The axles come in the box along with the bearings, hardware and rear. They ship it that way as you have to press the reluctor rings off your old axles and on to the new axles for the ABS/TCS. After that, install the factory backing plates and then press on your bearing and lock ring. It's not that complicated to do.

  6. #6
    Senior Member JaycenK's Avatar
    Join Date
    Nov 2008
    Location
    Holiday,FL
    Age
    40
    Posts
    1,378

    Green
    1997 Camaro Z-28

    how do you press on the bearings? do you need special tools? same question for the rings, what is needed to do that?

  7. #7
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,576

    Black & Blue
    '02 WS.6 / '07 Suburban

    Just used a standard shop press. There are pictures in the thread I linked of the reluctor ring being removed/installed -- can't remember if I posted a pic of the bearings being installed.

  8. #8
    Senior Member JaycenK's Avatar
    Join Date
    Nov 2008
    Location
    Holiday,FL
    Age
    40
    Posts
    1,378

    Green
    1997 Camaro Z-28

    I have a press so I think I can handle the rings. Did the rear come with instructions on how to do the bearings and the rings? I think if I am given instruction I can do it but, you know...I like to have someone with experiance do the important stuff lol. I understand how rears work and go together but have not done one myself yet. I guess as long as I don't have to set up pinion preload and shims and all that I should be ok. I just worry I'll Fubar something and cause a BIG BIG problem.

  9. #9
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,576

    Black & Blue
    '02 WS.6 / '07 Suburban

    The instructions were not all that great. Here it is play by play as I did it:

    1. I ran a rag soaked in denatured alcohol down the axles tubes to clean out any debris. A clean broom handle works great for pushing it in and out of each tube. I also used brake clean to wash off the pattern dye and flush any debris out of the housing.

    2. I believe it is easiest to remove the stock axles while the rear is till in the car. Pull the wheels, remove your caliper and disconnect the brake line at the union. I immediately capped the open line with a vacuum cap to prevent fluid from leaking and to limit air infiltration. Remove your caliper bracket and brake rotor. Pull your axle cover and rotate the posi until you see the small bolt head on the side of the carrier. Remove the bolt and extract the c-clip spacer from between the ends of the axles. Disconnect and remove your ABS/TCS sensors before pressing the axles inward -- you can tap them with a deadblow hammer also -- and this should allow the c-clip to be removed off the end of the axle. I fished mine out with a magnet. Then simply pull your axle out and remove your backing plate.

    3. Remove your parking brake as you will need some space to install the new t-bolts

    4. Press your reluctor ring off the old axle and onto the new axle.

    5. Slip your backing plate over your new axle as it needs to be in place before you press the bearing on.

    6. Press the bearing on all the way to the axle shoulder.

    7. Press the lock ring on tight to the bearing. I warmed mine up a bit with a propane torch as they do press hard.

    8. Install your axle seal in the end of each tube.

    9. Insert your axle and then bolt up your backing plate with the new hardware before re-installing your parking brake and ABS/TCS sensor.

    10. Fill the axle and use limited slip additive, if necessary, then remove the old rear axle and install your new one. There is also a break in procedure that requires running the car in the air both in drive and reverse for a brief period, and then another break in on the road.

  10. #10
    Senior Member JaycenK's Avatar
    Join Date
    Nov 2008
    Location
    Holiday,FL
    Age
    40
    Posts
    1,378

    Green
    1997 Camaro Z-28

    cool thanks for the instructions. Did you buy yours direct from moser? or somewhere else?

  11. #11
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,576

    Black & Blue
    '02 WS.6 / '07 Suburban

    I believe KY Speed may be the best resource even if they do not list them on their site. Send Mark a PM.
    Last edited by pajeff02; 03-11-2010 at 07:46 PM.

  12. #12
    Moderator Cutlass's Avatar
    Join Date
    Apr 2008
    Location
    Madison, WI
    Posts
    6,998

    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    Along with the rear end you might need all or some of these to get the rear sitting in there just right:
    adjustable torque arm
    adj lower control arms
    adj panhard bar


    Cost really starts to add up

  13. #13
    Member marksls1ta's Avatar
    Join Date
    Dec 2006
    Location
    pikeville, kentucky
    Posts
    701

    black
    1998 trans am

    let me know if we can help.

    Thanks for the mention guys.

    Mark

    KYSpeed.com | FREE SHIPPING & HANDLING | PRICE MATCH | EMAIL

    Kook's | American Racing Headers | Vararam | HallTech | Textralia | SPEC | McLeod | Raptor | Trick Flow | AFR | ECS
    | FAST | APS | TTi | Procharger | RPM Transmission | Comp | DMH | HP Tuners | PFADT | SLP | STS

  14. #14
    Senior Member JaycenK's Avatar
    Join Date
    Nov 2008
    Location
    Holiday,FL
    Age
    40
    Posts
    1,378

    Green
    1997 Camaro Z-28

    Quote Originally Posted by pajeff02 View Post
    I ordered it through a speed shop up by Buffalo, NY -- they helped to make sure I got everything right. I could have ordered direct from Moser and I believe KY Speed may also be a resource even if they do not list them on their site. Send Mark a PM as I have found that their prices are sometimes better than ordering direct from the manufacturer.
    yup I talked to Mark and he got me a price. thanks again Mark. And thanks cutlass for the heads up there, that is kind of what I thought. Thanks for kind info pajeff02, Now that brings up something else. Are those parts like the adj torque arm and adj control arms and adj panhard going to have to be specific to a 12 bolt or 9 inch? If I can go ahead and get them on the car now that would be cool, or are they going to have to collect dust until I can afford the rear?

  15. #15
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,576

    Black & Blue
    '02 WS.6 / '07 Suburban

    Quote Originally Posted by JaycenK View Post
    yup I talked to Mark and he got me a price. thanks again Mark. And thanks cutlass for the heads up there, that is kind of what I thought. Thanks for kind info pajeff02, Now that brings up something else. Are those parts like the adj torque arm and adj control arms and adj panhard going to have to be specific to a 12 bolt or 9 inch? If I can go ahead and get them on the car now that would be cool, or are they going to have to collect dust until I can afford the rear?

    They are all the exact same pieces that you can use with your 10 bolt. Since our car is not lowered, I elected to go with non-adjustable LCA's and panhard bar.

  16. #16
    Senior Member JaycenK's Avatar
    Join Date
    Nov 2008
    Location
    Holiday,FL
    Age
    40
    Posts
    1,378

    Green
    1997 Camaro Z-28

    cool thanks for the info again, I guess I will start with the bolt on stuff and then get ready for the rear.

  17. #17
    Just me Y2KPewterSS's Avatar
    Join Date
    Nov 2006
    Location
    Broken Arrow, OK
    Age
    42
    Posts
    23,353

    Pewter metallic
    2000 Camaro SS

    Please don't post info to non sponsors. In the future just PM the info to the member

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. dpms upper, 16 inch WITH bolt and carrier. $399
    By Modulistic in forum Gun's & Ammo
    Replies: 2
    Last Post: 03-23-2010, 07:45 PM
  2. 12 bolt or 9 inch
    By bow125106 in forum Parts Wanted / Trade
    Replies: 0
    Last Post: 02-14-2009, 02:11 PM
  3. 2 Bolt On Questions - Please Help
    By Castle in forum External Engine
    Replies: 7
    Last Post: 08-23-2007, 12:41 PM
  4. hey guys looking for a used 12 bolt or 9 inch
    By ls1marine in forum Western Members
    Replies: 0
    Last Post: 09-24-2006, 04:39 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •