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Lowering front end of Peterbilt

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by wjhuskey, Aug 5, 2024.

Page 1 of 2
  1. Aug 5, 2024 #1
    wjhuskey

    wjhuskey Bobtail Member

    43
    15
    Nov 1, 2014
    Arkansas
    0
    Hello all. What's everyone doing to lower the front end of the older Peterbilt 379's? I have a 1993 flat top and wanting to complete the look and shorten the distance between the top of the front tire and fender. I've heard people take the spacer blocks out on the leafs. What about the rear height and drive line angles? Anyone here done this?

    This is a forum so here comes the keyboard criticism...
     
    wjhuskey, Aug 5, 2024
    wjhuskey, Aug 5, 2024
    #1
    260REM Thanks this.
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  3. Aug 5, 2024 #2
    Iamoverit

    Iamoverit Road Train Member

    2,159
    4,941
    Oct 31, 2023
    0
    22s, lp tires, lowest suspension setting and covered by full fenders should do the trick.
     
    Iamoverit, Aug 5, 2024
    Iamoverit, Aug 5, 2024
    #2
    wjhuskey Thanks this.
  4. Aug 5, 2024 #3
    PSM379

    PSM379 Heavy Load Member

    933
    3,822
    Apr 19, 2019
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    I took the blocks out of my 379. It was on low air, never had a driveline or ride heights issue. Spring shop shimmed it for me so the caster would be correct. Never had an issue.
     
    PSM379, Aug 5, 2024
    PSM379, Aug 5, 2024
    #3
    D.Tibbitt, mile marker 27, Oxbow and 1 other person Thank this.
  5. Aug 5, 2024 #4
    wjhuskey

    wjhuskey Bobtail Member

    43
    15
    Nov 1, 2014
    Arkansas
    0
    Does this look noticeable that it sets lower than the rear since nothing is done to the rear to level it with the front? Just wondering...
     
    wjhuskey, Aug 5, 2024
    wjhuskey, Aug 5, 2024
    #4
  7. Aug 6, 2024 #5
    PSM379

    PSM379 Heavy Load Member

    933
    3,822
    Apr 19, 2019
    0
    I will have to dig for some before and after pictures. It did give it a slightly different look. I didn’t want a slammed look, just a little lower.
     
    PSM379, Aug 6, 2024
    PSM379, Aug 6, 2024
    #5
  8. Aug 6, 2024 #6
    wjhuskey

    wjhuskey Bobtail Member

    43
    15
    Nov 1, 2014
    Arkansas
    0
    Same here. Not wanting a slammed look, just want to make it look like the later model 379's with the lower suspension that has a smaller gap above the steer tires.
     
    wjhuskey, Aug 6, 2024
    wjhuskey, Aug 6, 2024
    #6
    260REM Thanks this.
  9. Aug 15, 2024 #7
    260REM

    260REM Bobtail Member

    10
    8
    Aug 9, 2023
    0
    Any updates on this ? I have a '90 that i would like to lower also.
     
    260REM, Aug 15, 2024
    260REM, Aug 15, 2024
    #7
  10. Aug 15, 2024 #8
    BoxCarKidd

    BoxCarKidd Road Train Member

    4,518
    6,578
    Aug 26, 2014
    0
    I never did that or want to. However the one I just put a spring in had about a 3 inch aluminum block between the axle and the spring.
    If you took that to a machine shop that could cut that down an inch or two you would get your drop. Then your caster will be screwed up.
     
    BoxCarKidd, Aug 15, 2024
    BoxCarKidd, Aug 15, 2024
    #8
    mile marker 27 and Rideandrepair Thank this.
  11. Aug 16, 2024 #9
    wjhuskey

    wjhuskey Bobtail Member

    43
    15
    Nov 1, 2014
    Arkansas
    0
    No updates from me at least. Still haven't done anything to my truck. Too many wishy washy answers.
     
    wjhuskey, Aug 16, 2024
    wjhuskey, Aug 16, 2024
    #9
    260REM and BoxCarKidd Thank this.
  12. Aug 17, 2024 #10
    BoxCarKidd

    BoxCarKidd Road Train Member

    4,518
    6,578
    Aug 26, 2014
    0
    I THANK IT WOULD LOOK WRONG! Suit yourself but I would be more worried about causing vibrations, odd tire wear and such.
     
    BoxCarKidd, Aug 17, 2024
    BoxCarKidd, Aug 17, 2024
    #10
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