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gas mileage drop

Discussion in 'The Garage' started by 69K5, Jan 12, 2004.

  1. 69K5

    69K5 1/2 ton status

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    i am swapping from my stock blazer axels 3.73 ( i was suprised i was expecting something higher i didnt know blazers came with those) to my 8 lug axels 4:56 any idea how bad my gas mileag is gonna suck? Its qa bone stock 69 k5 with 350 no lift yet.
     
  2. SUBFAN

    SUBFAN 1/2 ton status

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    Wow is this an open ended question....

    Depends on your driving style, speed, etc....

    It will suck real bad for the first few months as you are enjoying the new found performance /forums/images/graemlins/thumb.gif

    Great job on doing the gears first then going bigger in the future /forums/images/graemlins/thumb.gif

    I hope you do not wind up wishing you had gone with a stouter axle when it is all said and done....
     
  3. Confedneck

    Confedneck 3/4 ton status

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    well.. driving around town, say, sub 40 mph the mileage should increase if you drive like a sane person.. but 4.56s and what size tires?? stockers?? 225s??
     
  4. RustBuket

    RustBuket 1/2 ton status

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    Highway mileage will decrease alot because you'll need alot more rpm to do the same speed.
     
  5. 69K5

    69K5 1/2 ton status

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    sorry i forgot 31's right now and stock. 4" lift later on this summer.

    i was afraid of that on the highway.

    i dont think im gonna get much stouter than the eaton in the rear. the d44 up front maybe but its what was on the truck and i only paid 300.00 for a complete 72 k20 minus the motor. i guess its like all things it sucks till your used to it.

    thanks

    69k5
     

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