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For those who are runnin 40's?????????????

Discussion in 'The Garage' started by BamBamblazer, Mar 6, 2004.

  1. BamBamblazer

    BamBamblazer 1/2 ton status

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    For those who are runnin 40\'s?????????????

    I am getting ready to do the axle swap and put on my 39.5 irok's and i have a question. Did you leave your front axle in the stock location or did you move it forward with a zero rate? I just dont want to get it in then have to take it all apart to install a zero rate so it wont rub the fire wall! Also on a side note, will a zero rate, setting the axle back 1.5"s be enough correction on the rear when i do a echobit flip and go from 10 bolt to a 14ff?
     
  2. mudhog

    mudhog THEGAME Staff Member Super Moderator

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    Re: For those who are runnin 40\'s?????????????

    i have mine in the stock location /forums/images/graemlins/thumb.gif
     
  3. K5DRAGER

    K5DRAGER 1/2 ton status

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    Re: For those who are runnin 40\'s?????????????

    I think this all depends on how much lift you have. I'm running 39.5 tsl's but I only have 4" BDS springs and have the zero rate in there moving it an inch forward and I think its just right for my truck.
     
  4. BamBamblazer

    BamBamblazer 1/2 ton status

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    Re: For those who are runnin 40\'s?????????????

    So you have no rub issues at the firewall when stuffed?
    That is what i wanted to hear!
     
  5. desertrat67

    desertrat67 Hawk Driver

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    Re: For those who are runnin 40\'s?????????????

    If i hit really hard in the front, my 38s would hit the rear. i moved my axle forward 1 1/4" and have not had a prolem since. this is with a D60 and 6"-7" lift.
     
  6. mudhog

    mudhog THEGAME Staff Member Super Moderator

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    Re: For those who are runnin 40\'s?????????????

    i only have 2.5in lift /forums/images/graemlins/eek.gif so yes if i flex it out hard they will rub but under about half flex to maybe 3/4 flex they don't rub /forums/images/graemlins/eek.gif /forums/images/graemlins/thumb.gif now as soon as i get my 4in lift on i should be able to flex way more /forums/images/graemlins/thumb.gif
     
  7. az-k5

    az-k5 1/2 ton status

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    Re: For those who are runnin 40\'s?????????????

    I have a D44 with 4.5" of lift. At full stuff my 37's rub the firewall on both sides. I got a D60 comin in and we'll see if it gets better. I am going to 40's in the summer and will use a z-rate to avoid the firewall. As for the z-rate to axle change height, I can't sat. A D60 in the front will even out a 14FF in the rear. So you kinda break even.
     
  8. scoutillac

    scoutillac 1/2 ton status

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    Re: For those who are runnin 40\'s?????????????

    I am hearing alot about those zero rate springs. What are the best ones to look at? How much are they?
     
  9. bablazer73

    bablazer73 1/2 ton status

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    Re: For those who are runnin 40\'s?????????????

    I ran 40's with 4" lift and sagging body mounts. Under a hard, hard compression, the would hit the firewall. On the last hit, It tore the body off the mount. but they were toast anyways!
     
  10. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Re: For those who are runnin 40\'s?????????????

    I moved my D60 forward 1 1/4" without using a zero rate. My 40's don't hit the firewall/floorboard area at full stuff and turned. I re-drilled the perches and clearanced the spring plates to move the diff...I didn't want more lift.

    Rene
     

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