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Thread: What's the best way to check alignment and tracking?

  1. #1
    Junior Member SHOW GUEST
    Join Date
    Jun 2010
    Location
    New Brunswick, Canada
    Posts
    4

    What's the best way to check alignment and tracking?

    Our mud racer has adjustable links at all four corners and we are currently measuring wheel to wheel, front to back, but it is hard to know if the front wheels are actually straight before-hand and there seems to be many variables. We are very close to launching straight and running straight at mud runs but we want to be able to double check and be sure.
    Does anyone have a tried and true method of checking alignment in relation to the body so a vehicle will launch and go straight?
    Thanks in advance for any and all comments...
    showtimeracing
    60 feet off the line you are not driving... you're just hangin' the $%@# on!!!

  2. #2
    Senior Member RACING JUNKIE TheYellaBrick's Avatar
    Join Date
    Mar 2008
    Location
    Emmett, Idaho
    Posts
    7,334
    On a level concrete or blacktop pad, get it on jack stands with the wheels and tires off and the chassis level.
    Pick 4 points on the chassis on each corner(swing arm pivots/spring mount/etc) and mark, then notate in a log book. Drop a plum bob off each of these points and mark an 'X' on a section of tape stuck to the floor/pad where the plumb touches. This need to be very accurate ! Measure front to rear, left to right, and diagonally on both sides. Notate in your log book. This action is called 'squaring the chassis'. From these measurements you can determine if the chassis is out of square.
    Next drop your plumb bob off of the center of each wheel hub and mark on tape on the floor. Measure once again side to side, left to right, front to rear, and diagonally. Notate in log book.
    Now take measurements from your wheel hub center marks to the 'chassis' marks to determine if the suspension is squared with the chassis.
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  3. #3
    Senior Member RACING JUNKIE
    Join Date
    Dec 2004
    Location
    austin texas
    Posts
    729
    Put it on a alignment rack and dial it in right the first time. It will be hard to find a shop to let you work along and do ur truck, but ask around


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