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Vinny's Peterbilt Mystery

Discussion in 'Peterbilt Forum' started by vinijackson, Nov 29, 2011.

Page 4 of 5
  1. Oct 7, 2012 #31
    vinijackson

    vinijackson Bobtail Member

    30
    0
    Sep 11, 2011
    Williston Vermont
    0
    Sorry.... Then my wheel base would be 360 - 49" (24.5) tires for a 311 wheel base?
     
    vinijackson, Oct 7, 2012
    vinijackson, Oct 7, 2012
    #31
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  3. Oct 8, 2012 #32
    Superwav

    Superwav Bobtail Member

    27
    24
    Jan 27, 2012
    Monmouth, OR
    0
    Vini

    Tire size has nothing to do with wheelbase, but it will effect ride height and theoretical over all gear ratio.
    Wheelbase is measured from the centerline of the front spindle on the steer axle, to the centerline of the rear axle.
    Your bumper-to-bumper measurements are reffered to as 'LOA' or 'Length Over All'.
     
    Superwav, Oct 8, 2012
    Superwav, Oct 8, 2012
    #32
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  4. Oct 8, 2012 #33
    haulhand

    haulhand Road Train Member

    2,087
    3,202
    Feb 6, 2008
    Rock Springs, Wyoming/Dickinson, ND
    0

    Actually "true" wheelbase is measured from the center of the steer to the center of the rear suspension not the rear axle. Just for informations sake.
     
    haulhand, Oct 8, 2012
    haulhand, Oct 8, 2012
    #33
    Superwav and vinijackson Thank this.
  5. Oct 8, 2012 #34
    Klleetrucking

    Klleetrucking Medium Load Member

    378
    345
    Dec 11, 2010
    S.C.
    0
     
    Last edited: Oct 8, 2012
    Klleetrucking, Oct 8, 2012
    Klleetrucking, Oct 8, 2012
    #34
    vinijackson and Superwav Thank this.
  7. Oct 9, 2012 #35
    vinijackson

    vinijackson Bobtail Member

    30
    0
    Sep 11, 2011
    Williston Vermont
    0
    Suppose I know I have 6" side walls and 24.5 tires, I know the outside diameter of the rear tire is even with the rear of the frame, and the outside diameter of the front tire is 6" from the end of the frame? Just to be in the ball park ......24.5 plus 12" side wall / 2 should put me in the center of each axel. So I subtract 18.25 (center of the rear axel) from 360 gives me 341.75. Then I do the same in the front and get 323.5. Subtract 6" from the outside diameter of the front tire to the front bumper and get 317.5. I will check by measuring it but thought that would put me in the ballpark.
     
    vinijackson, Oct 9, 2012
    vinijackson, Oct 9, 2012
    #35
  8. Oct 9, 2012 #36
    Superhauler

    Superhauler TEACHER OF MEN

    12,209
    100,723
    Jan 30, 2010
    keep stroking.
    0
    center of steer to center of drive axle suspension. (in other words between the drive axles)
     
    Superhauler, Oct 9, 2012
    Superhauler, Oct 9, 2012
    #36
    Superwav Thanks this.
  9. Oct 10, 2012 #37
    Superwav

    Superwav Bobtail Member

    27
    24
    Jan 27, 2012
    Monmouth, OR
    0
    Superhauler and Haulhand are absolutely right!

    I don't know why, but I was thinking your 359 was a single screw. That would be axle to axle.
    You need centerline (center of the hubcap) of the steer axle, to the mid-point between the two rear axles.

    Also, could you maybe throw up a couple af photos?
     
    Superwav, Oct 10, 2012
    Superwav, Oct 10, 2012
    #37
  10. Oct 10, 2012 #38
    vinijackson

    vinijackson Bobtail Member

    30
    0
    Sep 11, 2011
    Williston Vermont
    0
    Sure I can take some more... The truck in my avatar is the one I'm talking of.
     
    vinijackson, Oct 10, 2012
    vinijackson, Oct 10, 2012
    #38
  11. Jan 25, 2014 #39
    ROBERTCADAMS

    ROBERTCADAMS Light Load Member

    51
    63
    Sep 23, 2013
    Crossville,TN
    0
    You have a 359 Flat dash,Before the Dash of Class came about with a later model 379 Sleeper. The reason for the long wheelbase is it makes the truck ride better and once you get used to it there will be very few places you cant put it. Please keep pictures coming of your progress as I love 359's!!!
     
    ROBERTCADAMS, Jan 25, 2014
    ROBERTCADAMS, Jan 25, 2014
    #39
  12. Jan 27, 2014 #40
    74pete359

    74pete359 Bobtail Member

    15
    1
    Jan 22, 2014
    0
    I have a 74 359 st flat dash its a dump trk now with a 1674 270 hp cat . it has a fibreglass hood iwas told it is 4-5 inches shorter but not sure. Im trying to figure out the difference between a 359 an a 359st if someone could tell me
     
    74pete359, Jan 27, 2014
    74pete359, Jan 27, 2014
    #40
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