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If you had 35's what gears would you use?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 76_Cheyenne, Aug 8, 2002.

  1. 76_Cheyenne

    76_Cheyenne 1/2 ton status

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    If you had 35\'s what gears would you use?

    I have a 1976 K10 and are currently running 35's with 3.08 gears. I'm looking to swap in some new ones, either 4.56, 0r 4.10. It's a daily driver and gets offroad use a lot. Will get larger tires, up to 38's in a few years but thats not really a factor at this time. This truck will also be going back and forth from Washington to Monatana a few times a year. What would you gear junkies suggest?
     
  2. mudhog

    mudhog THEGAME Staff Member Super Moderator

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    Re: If you had 35\'s what gears would you use?

    what tranny do you have? if you have overdrive then get the 4:56's if not go with the 4:10's /forums/images/icons/smile.gif
     
  3. 76_Cheyenne

    76_Cheyenne 1/2 ton status

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    Re: If you had 35\'s what gears would you use?

    I got the th350 auto 3-speed
     
  4. mudhog

    mudhog THEGAME Staff Member Super Moderator

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    Re: If you had 35\'s what gears would you use?

    then to keep the rpms down i would go with 4:10's /forums/images/icons/smile.gif
     
  5. Chris_T

    Chris_T 1/2 ton status

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    Re: If you had 35\'s what gears would you use?

    Depends what you do with it. When I had a TH350 I had 3.73's and they were OK around town, left me wanting a bit more off road, but great on the highway - so unless you're going to be doing a ton of highway driving I'd say 4.10s. If you put major miles on the K5 on the highway you could think about 3.73's, but in that case it'd probably be cheaper to find a set of 3.73 geared axles than it would be to swap gears. On the flip side if you're thinking about an axle upgrade, 4.10 is a popular ratio in 8 bolt stuff
     
  6. 76_Cheyenne

    76_Cheyenne 1/2 ton status

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    Re: If you had 35\'s what gears would you use?

    about what size tires do the 4.10's become to weak? would they work well with 36's maybe 38's
     
  7. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Re: If you had 35\'s what gears would you use?

    4.10's for a daily driver.

    This ratio will give you the "get up and go" from stop signs or lights and still be able to drive on the highways without having your motor scream its lungs out.
     
  8. mudhog

    mudhog THEGAME Staff Member Super Moderator

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    Re: If you had 35\'s what gears would you use?

    i have 4:10's with my 38's and run the sm465np205combo and i think they suck offroad i realy wish i had 4:88's
     
  9. tipoil

    tipoil 1/2 ton status

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    Re: If you had 35\'s what gears would you use?

    I've got 3.73 whit 35 and a th350
    love that setup
    but i have a warmed over 400 so lo rpm torque is not a big problem
     
  10. bigjbear

    bigjbear 1 ton status Staff Member Moderator

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    Re: If you had 35\'s what gears would you use?

    As low as you can live with. If you see alot of high speed miles 4.10s, otherwise 4.56s. I have a TH350, 35s & 4.56s. With the old motor it was a little tough on the interstate, now it goes right along w/ Atlanta trafic. I strongly recomend the 4.56s unless you have a long daily commute, a long trip a coupply times a year is no big deal.
     
  11. bigmack

    bigmack 1/2 ton status

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    Re: If you had 35\'s what gears would you use?

    My tires are Q-78's which are about the same heigth as my buddies 36 TSL's. My truck has 4.10 gears and I wish they were alot lower, when I regear I will use a 4.88 or a 5.13, I hardly ever drive it on the road so interstate driving is not a consideration for me.
     
  12. 76_Cheyenne

    76_Cheyenne 1/2 ton status

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    Re: If you had 35\'s what gears would you use?

    Thanks for the suggestions guy's. I've decided to go with the 4.10's. I get them installed on the 20th of this month! I can't wait.
     
  13. bUrLyBlAzEr89

    bUrLyBlAzEr89 Registered Member

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    Re: If you had 35\'s what gears would you use?

    keep us posted
     
  14. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    Re: If you had 35\'s what gears would you use?

    456 is nice for the trail but If your on the Hwy a lot 4.10's My truck has 35's and 4.10's and A TH350 and 75 MPH is about 2900-3000RPM.
    If you have a midly built engine then it's great set up. If you had a 7000R4 with Over drive...4.56 all the way on those.
     

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