Jump to content

4.10 to 4.88?

zen720

Recommended Posts

zen720 New Member

zen720

Posted
Posted

I have a 2015 2500HD with a 6" lift and 35" tires. I do pull often with the truck and was considering going to 4.88 gears. Has anyone with a similar setup gone to 4.88s and your thoughts.

SierraHD17 Senior Enthusiast

SierraHD17

Posted
Posted

I run a 33.5" tall tire and went to 4.56 in my 2017  liter HD.  It started life with 3.73 so it benefitted more than a 4.10 one but still.  I would not hesitate for 4.88 with a 35.  Tachs 2100 at 70 mph and the mileage improves slightly from not lugging in 6th.

zen720 New Member

zen720

Posted
  • Author
Posted

Mine came with the 4.10s. It is not bad, but pulling my toy hauler I feel it could use a little better gearing to keep trans temp down and more power for hills.

SierraHD17 Senior Enthusiast

SierraHD17

Posted
Posted

They all do... just mine is an oddity because it was ordered under the fleet program.  Even with 4.10 gears these trucks are severely undergeared in stock form.  4.56 should be a factory option like it used to be in the 90s... Pulling trailer is pretty effortless with my truck now.  4.88 with a 35 will be roughly the same overall gear I have with the slightly smaller tire.  I was going to put 35s on mine as I have miles of room but I like how it drives and will be leaving the tire size I have on it.

SierraHD17 Senior Enthusiast

SierraHD17

Posted
Posted
1 hour ago, i82much said:

I would go with a 4.89, just to be certain it isn’t undergeared.  4.88 might be a touch too tall.

 Funny guy!  Being serious 5.13 would be alright too but 4.88 should do the trick.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,778
    Total Members
    8,960
    Most Online
    daveishi
    Newest Member
    daveishi
    Joined

  • Who's Online   2 Members, 0 Anonymous, 823 Guests (See full list)

  • Latest Articles

  • Posts

    • Jsdirt
      2027 GMC Sierra: Official Discussion

      By Jsdirt · Posted

      Because that is IDIOTIC, much like this question. They've already been forced to do it by past administrations - why would you roll that back when it's a GOOD thing?  WHO IS ARGUING FOR LOWER MILEAGE???? 😂  NOBODY IS!!   I'm certainly not! What I want is RELIABLE vehicles again that are worth the price paid!    I don't get your logic here ...   In 2003 I paid $2,200 for our '86 Grand Marquis. It's STILL running and I've never been inside the engine, aside for the timing cover since it was leaking, so I threw a new timing set in since that makes sense. Transmission is ORIGINAL. Electric pump in the gas tank is ORIGINAL. Rear end is ORIGINAL. I'd have to hit my head REAL hard to want to pay $60k or more for a car that still can't come close to the comfort, seating and storage space, or reliability of this one. Nothing is even in the ball park! Hundreds of thousands of brands and models have been built and sent to the crusher while this one keeps on going!   https://postimg.cc/Z9XRrCSg   I've got a whole fleet of cars, motorcycles, and a truck close to this age for summer and winter. No one could pay me enough to buy anything built this century. I have zero use for any it.
    • Jsdirt
      2027 GMC Sierra: Official Discussion

      By Jsdirt · Posted

      Since I'm the one who has to fix them when they break, I'll take vehicles over 30 years old all day, EVERY day, over ANY modern crap. Have you attempted any repairs on anything built after 2006? It's a friggin nightmare, and gets worse the newer the model year.    If I had the will or desire, I can make any car of any age outside of a Model T (I don't have THAT much will ...) just as powerful, comfortable, and have all the tech the new stuff does, and get pretty close in mileage, too. I prefer SIMPLICITY. The less the vehicle has, the less to fix WHEN it breaks, not IF.   I'm glad you snot-nosed punks don't like them. More for us, plus that keeps the prices from climbing more than they already have.👍
    • cautious optimist
      2027 GMC Sierra: Official Discussion

      By cautious optimist · Posted

      Bringing this thread back on topic. I just noticed the incredible lack of bright chrome across the entire new lineup. Even the Denali has tinted the brightwork in the grille and has none elsewhere. None of them have chrome bumpers. As far as I can tell there aren't even chrome mirror caps. I'm curious if this also happens out back? Are there no chrome rear bumpers either? This is quite the departure for GMC.
    • cautious optimist
      2027 GMC Sierra: Official Discussion

      By cautious optimist · Posted

      Bringing this thread back on topic. I just noticed the incredible lack of bright chrome across the entire new lineup. Even the Denali has tinted the brightwork in the grille and has none elsewhere. None of them have chrome bumpers. As far as I can tell there aren't even chrome mirror caps. I'm curious if this also happens out back? Are there no chrome rear bumpers either? This is quite the departure for GMC.
    • cautious optimist
      2027 GMC Sierra: Official Discussion

      By cautious optimist · Posted

      Bringing this thread back on topic. I just noticed the incredible lack of bright chrome across the entire new lineup. Even the Denali has tinted the brightwork in the grille and has none elsewhere. None of them have chrome bumpers. As far as I can tell there aren't even chrome mirror caps. I'm curious if this also happens out back? Are there no chrome rear bumpers either? This is quite the departure for GMC.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...