Jump to content

Which Axle 9.75 or 9.5

Antoine08

By Antoine08
in Engines & Drivetrain

 Share

Recommended Posts

DCOX Enthusiast

DCOX

Posted
Posted

Yup. My 2014 6.2 with 3.42 is stamped with a 9.76. I'll take a picture in a few

  • Replies 42
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

Antoine08
Antoine08

Hey guys i answered my own question. To all you 6.2L owners it is said by GMDirect that we have the larger 9.75" Axle. so if you have the 3.42 gears, the GM 3.73 can be a direct replacement. Part numb

Posted Images

Jon A Senior Enthusiast

Jon A

Posted
Posted

Nice find! I hadn't noticed that--it's kind of hard to see even with a lift, I found taking a pic with my phone easiest. I confirmed my 2014 6.2 3.42 also has 9.76" written on it.

 

Of course this brings up a couple more questions. If the only difference between the 9.76" and 9.50" really is just the ring and pinion, why did they feel the need to cast 9.76" into the housing? Can anybody with a 5.3 non-NHT confirm they have 9.50" cast into their housing? I know it would make no sense for it not to, but that's never stopped GM before....

bowtie482 Enthusiast

bowtie482

Posted
Posted

Nice find! I hadn't noticed that--it's kind of hard to see even with a lift, I found taking a pic with my phone easiest. I confirmed my 2014 6.2 3.42 also has 9.76" written on it.

 

Of course this brings up a couple more questions. If the only difference between the 9.76" and 9.50" really is just the ring and pinion, why did they feel the need to cast 9.76" into the housing? Can anybody with a 5.3 non-NHT confirm they have 9.50" cast into their housing? I know it would make no sense for it not to, but that's never stopped GM before....

 

 

 

 

I have non max tow 5.3 with 9.50 on my housing.

Stoddard Enthusiast

Stoddard

Posted
Posted

Nice find! I hadn't noticed that--it's kind of hard to see even with a lift, I found taking a pic with my phone easiest. I confirmed my 2014 6.2 3.42 also has 9.76" written on it.

 

Of course this brings up a couple more questions. If the only difference between the 9.76" and 9.50" really is just the ring and pinion, why did they feel the need to cast 9.76" into the housing? Can anybody with a 5.3 non-NHT confirm they have 9.50" cast into their housing? I know it would make no sense for it not to, but that's never stopped GM before....

I don't know specs by any means but the axle shafts and differential covers appear to be the same p/n between axles. I'll bet the pinion gear spacing is different for the larger ring gear needing a longer pinion snout.

Jon A Senior Enthusiast

Jon A

Posted
Posted

I have non max tow 5.3 with 9.50 on my housing.

 

Thanks. We now have a confirmed easy way to tell them apart. I'm guessing since they went to the trouble of making different castings, the R&P are most likely not interchangeable so one will need to know for sure before buying gears.

  • 1 month later...
Rme2513 Enthusiast

Rme2513

Posted
Posted

The 14 and prior 6.2 came standard with 3.42 and the NHT came with 3.73 the 15 with the 8 speed come standard with 3.23 and the NHT comes with 3.42 and I'm guessing there all the 9.76 rear end

  • 2 years later...
Sean Bourgeois New Member

Sean Bourgeois

Posted
Posted

I know this post is a couple years old, but I thought I should add what my truck has to this. It's a 2013 Silverado 1500 cc 4x4 with the 6.2l code L9H and the NHT max tow package, 3.73 ratio, I noticed some of you posted a pic of the diff cover with 12 bolts, mine is a 14 bolt. Factory stock, bought it brand new. I can post a pic if anyone is still poking around on this conversation. let me know.

  • 3 months later...
David Crandall Enthusiast

David Crandall

Posted
Posted
On 11/30/2017 at 3:14 PM, Sean Bourgeois said:

I know this post is a couple years old, but I thought I should add what my truck has to this. It's a 2013 Silverado 1500 cc 4x4 with the 6.2l code L9H and the NHT max tow package, 3.73 ratio, I noticed some of you posted a pic of the diff cover with 12 bolts, mine is a 14 bolt. Factory stock, bought it brand new. I can post a pic if anyone is still poking around on this conversation. let me know.

Not sure if you found an answer or any more info about the axle in your 2013, it's been a few months.

For 2014 there was a redesign of the axle. The new version of the 9.5 only has 12 bolts in the cover, and the previous versions were all 14 bolt. Parts are not directly interchangeable between the 12 and 14 bolt versions. I'm looking into upgrading my 2000 extended cab to a crew cab in the near future and have been researching the differences, also looking to make sure I end up with better towing capability as well. 

The only differences I can find between the 14 and up 9.5 and the 9.76 is the gears and the pinion bearings. I'm guessing the 9.76 uses larger diameter pinion bearings, leading the the different castings in the housings. I can't find all the bearing numbers to compare their sizes to verify for sure.

  • 2 weeks later...
Barman84 Enthusiast

Barman84

Posted
Posted
On 11/11/2014 at 7:22 PM, Antoine08 said:

It will cost less than 1k. I love my 6.2L but i can't leave things alone i put a 2" leveling kit and 33" tires didn't really affect performance to much, but would like to get a little extra power. I will do the maintenance myself with a few buddies so only paying for parts and beer.

Dude I just had my truck front and rear regeared to 4.10s for 2100 out the door with 4wp...  call them they’ll run your bin and tell you that or pull yournVin with a parts rep at the dealership.

  • 4 years later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • XY74
      Roll up bed cover experiences

      By XY74 · Posted

      I have a Retrax pro that I first had on my 2020 chevy and transferred it to my current GMC.  It stays in the garage most of the time, so hard for me to judge it's long term weather resistance.  It still works perfectly, been very durable.  It doesn't see oil patch usage, but it's not a mall queen.  It keeps most things mostly dry (small leaks) and the security of it is enough to slow someone down but not keep them out for long.  I would buy one again, it works for me.     
    • fm2176
      New to Me 2010 SLE (Quirks, Issues)

      By fm2176 · Posted

      Thanks to the convenience of Amazon, I was able to get a few things done to the truck today.  I installed Carquest Premium oil and air filters with five quarts of Mobil1 High Mileage 10-30 along with a quart of Pennzoil Platinum 5w-30 I already had.  The latch for the flip up center console lid was broken so I replaced it along with the power mirror switch.  I found my push retainer assortment this morning and reattached the plastic under the bumper and it was only held on with a few screws and retainers.  Then I programmed a new remote keyless entry fob so I can lock my dog in the truck when I take her out with me (I've got to keep the air going for her since it's been in the 100s).  Finally, I ordered some LED interior bulbs and replaced the reading lamps.  The front lights are working fine while one of the back lights only works intermittently and the other not at all.   While under the truck, I found the source of at least one of the noises: the sway bar links need replacing.  I ordered a set of Suspension Dudes links with Code Red bushings.  Never heard of them, but they're made in the USA and have decent reviews.  While making yet another Amazon order, I went ahead and added a set of front tow hooks.  I went with red, since that's the color of the sway bar link and bushings and it should look decent enough on a black and chrome truck.  Speaking of which, it doesn't bug me much, but the passenger side mirror has a chrome cap while the driver side doesn't, so eventually I'll make them match one way or another.  Oh, and I ordered a $20 TPMS reset tool.  No idea if it will do anything for my sensors but it was cheap and will work for the Ford Transit Connect as well.     For tradition's sake, I ordered a new oil change wrench.  I kept the Snap-On 9/16"x15mm GM wrench I bought when I was 18 in the 2006 GMC from the time I bought that truck until the truck was lost.  While I was tempted, there's no need to spend $80 for a new SO wrench, or even $50 with shipping for a used one on Ebay.  I just bought a Duratech 15mm extra-long ratcheting wrench to do the job as needed.  It works, and if I like that wrench enough, I'll buy the set.  
    • Another JR
      Multigate electrical problem

      By Another JR · Posted

      The recall is for exactly this issue - those drain holes combined with the limited environmental capability of the tailgate electronics card inside the tailgate were a problem. The “safety issue” was the potential for the tailgate to spontaneously open, but all kinds of tailgate misbehavior can occur from water contamination of that control card.    There is no real fix yet. The initial recall just disabled the tailgate. Later, when parts became available, they would replace bad parts with new parts of the same bad design. My dealer is going nuts because the few times I let them get their hands on my truck, my tailgate is off due to a slide-in camper installation. They really want to cut my tailgate wires, but I won’t give them the chance. I will let them get their dirty hands on it when a real fix (redesign) is available.  My tailgate, which works just fine with sealant plugging the drain holes, will remain safe in a dry storage crate until then.  
    • JakeD
      Tire fitment

      By JakeD · Posted

      Yes your absolutely right, I been looking at the 4 inch BDS one and it acutely states you can use the stock 20’s just not the 17’s or 18’s, I also didn’t realize that with my 275/60r20 stock wheels I’m already running 33 inch diameter wheel setup lol so I can just run my stock wheels and tires atleast to start.
    • davester
      Tire fitment

      By davester · Posted

      I would expect that to be lift-kit dependent.  If the kit has interference issues w stock wheels, then the kit/manufacturer should indicate that somewhere.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...