What front differential in 06' 1/2 ton?

Discussion in 'GM Powertrain' started by gocubs68, May 21, 2009.

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  1. gocubs68

    gocubs68 New Member

    I just won an aution on ebay where I bought a set of 4.10 gears for my 2005 1500 4x4. The description said they were from a 2006 1500 4x4, but described the front diff. as a 10.25" instead of the 8.25" that I believe is in the 06' 1500's. Do you think the guy was just confused or am I wrong in thinking the 06 had the 8.25? I already bought it so there is not much I can do about it, but I got the pair (30,000 Miles) for $150, which I thought was a steal. Thoughts?
  2. masterfoxscout

    masterfoxscout New Member 100 Posts

    The NBS 1500s have the GM 8.25 IFS. That includes 2006. I just had my gears replaced so I know that you have the 8.25 AND the guy was probably mistake if it was indeed from a 1500.
  3. MrShorty

    MrShorty Moderator 1000 Posts 100 Posts

    1500's had the 8.25 IFS, so I'd say he was either confused about the diff, or he was confused about the 1500 part.
  4. masterfoxscout

    masterfoxscout New Member 100 Posts

    He could have jumbled up the 10 bolt rear and the 8.25 making it into the all elusive 10.25 IFS...LOL
  5. gocubs68

    gocubs68 New Member

    Thanks for the replys. I was pretty sure I was right. The 4.10's should really help my 4.8 out quite a bit. Now I've got to find a good locker, my truck has no G80.
  6. grimreapersshadow

    grimreapersshadow New Member 100 Posts

    eaton's detroit tru-trac systems are nice mechanial posi style and not pricy as a full posi like i have in mine
  7. masterfoxscout

    masterfoxscout New Member 100 Posts

    x2 on the Tru Trac!

    Gonna put one of those in my Jeeps front axle and a selectable OX in the rear! WewT!
  8. beenurman

    beenurman New Member

    yeah man its an 8 and a quarter I.F.S. for sure and for the rear a 8.5 or an 8.6 ring and pinion set but make sure that you get the 8.6 install kit because an 8.5 install kit wont work.
  9. pmf608

    pmf608 New Member 1000 Posts 100 Posts

    for a good locker, i would recommend the ECTED diff. by Auburn Gear. I don't have any experience with it, but am thinking of getting one. Once it is installed, it is full-time limited slip, and then you just flip a switch (while driving at any speed) and it sets it into fully locked mode. I don't know about price though. hope this helps.
  10. Jimmiee

    Jimmiee New Member 1000 Posts 100 Posts

    If he miss-represented the gears you may want to contest it through PayPal. Also I know it's a little late but I hope you are buying new gears and not used ones. Never, never buy a used ring and pinion. It will cause nothing but grief and it will always be noisy.

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