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Thread: Rear axle: Is there a Difference b/n 2000 and 2007 nnbs? 8.5/8.625?

  1. 01-26-2011 02:57 PM #1
    Chris092183's Avatar
    Chris092183
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    Rear axle: Is there a Difference b/n 2000 and 2007 nnbs? 8.5/8.625?

    I have a locker (or maybe the gears are just welded from the previous owner) in my 2000 gmc sierra 4x4 ecsb. I am wondering if I can put the locker in my NNBS 2007 ccsb 1500? I know there is a 8.5 and an 8.625 but I'm not sure whaat year the change happened.

    Also how much can these 10 bolts handle? I haven't heard of too many people blowing them up with the truetrac installed.
    Would a 14 bolt be an easy swap? I'm guessing all that would be involved would be spring perches relocated, driveshaft shortening (14 bolt has longer snout on diff. right?), and of course 8 lug rims.

    Thanks guys
    2007 GMT900 CCSB 5.3 VTS2300 Twin Screw Supercharger, Doug Thorley LT's, True 3" Duals into Dynomax Race Bullets, Nelson Tune, 4L80e w/transgo HD2-D, Truetrac, 4.10 r&p
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  2. 01-26-2011 03:51 PM #2
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    Quote Originally Posted by Chris092183 View Post
    I have a locker (or maybe the gears are just welded from the previous owner) in my 2000 gmc sierra 4x4 ecsb. I am wondering if I can put the locker in my NNBS 2007 ccsb 1500? I know there is a 8.5 and an 8.625 but I'm not sure whaat year the change happened.

    Also how much can these 10 bolts handle? I haven't heard of too many people blowing them up with the truetrac installed.
    Would a 14 bolt be an easy swap? I'm guessing all that would be involved would be spring perches relocated, driveshaft shortening (14 bolt has longer snout on diff. right?), and of course 8 lug rims.

    Thanks guys
    IIRC 2wd SSS had a 14 bolt. 6 lug.

    1969 Chevy RCLB C10 350/TH400 SOLD
    2007 Chevy RCSB 4.8 4x4 LS SOLD
    2008 Chevy RCSB 5.3 4x4 LT SOLD
    2010 Chevy CCSB 6.2 4x4 LT SOLD
    2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
    2013 FORD CCSB F350 6.7 Powerstroke 4x4

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  3. 01-26-2011 06:36 PM #3
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    Quote Originally Posted by pl4yboy View Post
    IIRC 2wd SSS had a 14 bolt. 6 lug.
    What's a IIRC?
    2007 GMT900 CCSB 5.3 VTS2300 Twin Screw Supercharger, Doug Thorley LT's, True 3" Duals into Dynomax Race Bullets, Nelson Tune, 4L80e w/transgo HD2-D, Truetrac, 4.10 r&p
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  4. 01-26-2011 06:38 PM #4
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    If I recall correctly.

    1969 Chevy RCLB C10 350/TH400 SOLD
    2007 Chevy RCSB 4.8 4x4 LS SOLD
    2008 Chevy RCSB 5.3 4x4 LT SOLD
    2010 Chevy CCSB 6.2 4x4 LT SOLD
    2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
    2013 FORD CCSB F350 6.7 Powerstroke 4x4

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  5. 01-26-2011 08:20 PM #5
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    Quote Originally Posted by pl4yboy View Post
    If I recall correctly.
    Haha lmao. I thought the RC in the IIRC stood for Regular Cab so I was wondering what the II stood for lol.
    So will that rear end bolt right up to a NNBS?
    2007 GMT900 CCSB 5.3 VTS2300 Twin Screw Supercharger, Doug Thorley LT's, True 3" Duals into Dynomax Race Bullets, Nelson Tune, 4L80e w/transgo HD2-D, Truetrac, 4.10 r&p
    Need list: Stall, PLX 200 for my crappy AFR, X-pipe, GM 20's.
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  6. 01-26-2011 08:40 PM #6
    sprayedenali
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    Quote Originally Posted by pl4yboy View Post
    iirc 2wd sss had a 14 bolt. 6 lug.
    why do you always have to quote the opening post that is right above you!!!!!!!!!!!!!!!!!!
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  7. 01-26-2011 09:04 PM #7
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    Quote Originally Posted by sprayedenali View Post
    why do you always have to quote the opening post that is right above you!!!!!!!!!!!!!!!!!!
    BECAUSE IT BUGS YOU GUYS.

    Not really. I read the post and I hit reply with quote. I don't go down to see if anyone else has replied.

    1969 Chevy RCLB C10 350/TH400 SOLD
    2007 Chevy RCSB 4.8 4x4 LS SOLD
    2008 Chevy RCSB 5.3 4x4 LT SOLD
    2010 Chevy CCSB 6.2 4x4 LT SOLD
    2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
    2013 FORD CCSB F350 6.7 Powerstroke 4x4

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  8. 01-26-2011 09:06 PM #8
    sprayedenali
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    why dont you ust hit reply instead of reply with quote? its right next door.....
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  9. 01-26-2011 09:09 PM #9
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    Quote Originally Posted by sprayedenali View Post
    why dont you ust hit reply instead of reply with quote? its right next door.....

    Reply with quote lets me specify who I am talking to!111!

    1969 Chevy RCLB C10 350/TH400 SOLD
    2007 Chevy RCSB 4.8 4x4 LS SOLD
    2008 Chevy RCSB 5.3 4x4 LT SOLD
    2010 Chevy CCSB 6.2 4x4 LT SOLD
    2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
    2013 FORD CCSB F350 6.7 Powerstroke 4x4

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  10. 01-26-2011 09:13 PM #10
    sprayedenali
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    but when youre the first response i htink its pretty obvious who youre talking to...
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