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Too much of a lift???

Discussion in 'Suspension' started by aramirez73, Jul 29, 2016.

  1. Jul 29, 2016 at 7:10 PM
    #1
    aramirez73

    aramirez73 [OP] The Ayatollah of Rock n Rolla!

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    Milky Way Earth North America Texas
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    Rough Country lift 4.5"F/4"R 35x12.50R20 Toyo Open Country AT II/ 20" Fuel rims "Mavericks"/ S&B CAI/ 2-10" Rockford Fosgates R2/ Massive Audio Nano N2 amp/ KatSkins seat covers/ Weathertechs window vent visors and floor mats/ AM-AUTO tow mirrors/ Undercover tonneau bed cover/ Viper alarm 3305V/ Flowmaster Super 40 Dual in-out/ 40" led light bar/ TRD Pro grille/Rough Country 30" LED light bar
    Of course we know I have a '14 Tundra CM 5.7F...my ? is...is the lift I have on the truck too much on tranny and engine??? Also tires I'm running are 35*12.50R20... Lift is a rough country 4.5 other complaints I have that I have stated before are wider turning range and CV axle angels..but my main ? was...is that lift too much work on tranny n engine with those tires??? truck came that way when I bought it
     
  2. Jul 29, 2016 at 8:08 PM
    #2
    Wynnded

    Wynnded Wait, what?

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    A little off topic, but could you do us all a favour and stop with the vague thread titles?

    The lift and the tires are going to make everything work harder. Your truck was made for work, but wasn't designed to be lifted. So, yes and no.
     
  3. Jul 29, 2016 at 10:06 PM
    #3
    TruckyTruck

    TruckyTruck New Member

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    b8bd28012f061408c711c74ecce81aba.jpg
     
    rons23, Wynnded and boardude like this.
  4. Jul 29, 2016 at 10:49 PM
    #4
    csuviper

    csuviper Moderator Staff Member

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    Without gearing change the 35" tires do put extra strain on the engine/tranny. Its not too much as you have 4:30 gearing in the diffs.
     
  5. Jul 29, 2016 at 10:49 PM
    #5
    csuviper

    csuviper Moderator Staff Member

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    Not far outside the range:
    [​IMG]
     
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  6. Jul 29, 2016 at 10:51 PM
    #6
    csuviper

    csuviper Moderator Staff Member

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    The height hurts mpg because of increased drag.
    Too much angle on the cvs and your causing premature wear of the cvs and wheel bearings.
     
  7. Jul 30, 2016 at 4:18 AM
    #7
    chphilo

    chphilo New Member

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    Bad cv axle angle? Definitely a bad news.
     
  8. Jul 30, 2016 at 6:46 AM
    #8
    Law323

    Law323 Pray for peace, prepare for war

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    Dang, I have the 4.6 L with the tow pkg (diff of 4.11) I'd be fine wth 34's looks like. Wouldn't be able to tow much though LOL
     
    Last edited: Jul 30, 2016
  9. Jul 31, 2016 at 8:22 AM
    #9
    14burrito

    14burrito New Member

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    Usually not many people agree with me but ill throw my 2 cents in...

    If you plan to run 35s forever- invest in 4.88 gears IMHO. Yes your RPMs will be higher on the freeway but that does not directly correlate to less fuel economy, lot of people forget to also consider engine load. Just because your turning less RPM does not mean your using less fuel.

    It is a bit of an investment especially if your 4x4, worth every penny IMO. Less powertrain/driveline stress, torque curve at or starting lower than factory and fuel economy at or better than originally.
     
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  10. Jul 31, 2016 at 2:57 PM
    #10
    TruckyTruck

    TruckyTruck New Member

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    I don't ever plan to go lower than 35s. I just didn't think the truck needed it until you got into the 37s range. I'm not to knowledgeable on regearing though. How much higher in rps on the freeway?
     
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