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time to make it happen

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 85k5blzr, Aug 22, 2001.

  1. 85k5blzr

    85k5blzr 1/2 ton status

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    Ok, so here is what i plan on doing and a few questions to follow. I'm going 4" tuff country springs all around with 35"s and 4.11s. I was wondering a fefw things. If i put a 1in body on will it keep me from having to trim my fenders or would i have to go to 2"? I have 3.08s on 32"s right now and i am only getting 9mpg, would the 4.11s and 35"s cause that to go down or up because of the relieved engine stress? this is on a 700r4. I was also wondering if i put 1in blocks on the rear in addition, would i have to lower my tranny or is it a crapshoot?

    K5 just upgraded to rig status! [​IMG]
     
  2. solowookie

    solowookie 1/2 ton status

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    why don't you go to 4.56's... I'd think that (or even 4.88's) would be a better fit with your 700r4... I'm running 4.10's and 33's with a 700r4...

    as far as the fender trim... I'd think you'd only know that when you get everything on and run it.

    when I was doing my gear swap I used the RPM calculator at <a target="_blank" href=http://www.4lo.com>4lo.com</a>, and I believe the range you wanna be in is 2400 RPM's for best efficiency. (some here say the 700r4 has got to be at 2500 RPM's or higher to work and lock properly, but that I don't know about)

    <font color=blue> Jeff - may the force be with you</font color=blue>
    <a target="_blank" href=http://coloradok5.com/gallery/Jeffs-Stuff>http://coloradok5.com/gallery/Jeffs-Stuff</a>
     
  3. moneypit

    moneypit 1/2 ton status

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    4:56. you will be happy.
     
  4. CaptCrunch

    CaptCrunch 1/2 ton status

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    Well you should see a rise in mpg. I was getting about 10 or 11 mpg w/ 3.08's and 31's and then I did the 6" lift and 4.10's and am in the 13 to 14 mpg range. It really depends on the type of driving and how you drive though. I'm looking to regear now to get 4.56's and plan to step up to 35" SSR's or maybe some 36" TSL's. 4.10's will do but I think 4.56's will serve ya better

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
    <a target="_blank" href=http://coloradok5.com/gallery/captcrunch>http://coloradok5.com/gallery/captcrunch</a>
     

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