Mastersbilt right rear lag

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  • tworrick
    Senior Member
    • Oct 2011
    • 135

    #1

    Mastersbilt right rear lag

    was wondering does mastersbilt have built in right rear lag. I measured from rear axle to the 4 bar perch and with the bars 15 1/2" on both bottoms and 17 1/2 on tops. the right rear was make one inch seems like a lot
  • MasterSbilt_Racer
    Senior Member
    • May 2007
    • 14324

    #2
    Originally posted by tworrick View Post
    was wondering does mastersbilt have built in right rear lag. I measured from rear axle to the 4 bar perch and with the bars 15 1/2" on both bottoms and 17 1/2 on tops. the right rear was make one inch seems like a lot
    There is RR trail. I don't think it is that much.
    Modern Day Spec Wedge Racing

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    • tworrick
      Senior Member
      • Oct 2011
      • 135

      #3
      Originally posted by MasterSbilt_Racer View Post
      There is RR trail. I don't think it is that much.
      normally 1/4 to 1/2" ?

      Comment

      • RacerX10
        Senior Member
        • Jun 2007
        • 571

        #4
        Does a 2010 Rocket have RR trail ? (more than the 1/4" from the radius rods)
        Last edited by RacerX10; 02-21-2016, 11:19 PM.

        Comment

        • keeks
          Senior Member
          • Oct 2008
          • 687

          #5
          Wouldn't the measurement be from the motorplate to the axle?

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          • hall99
            Senior Member
            • May 2007
            • 421

            #6
            I squared a smack down car in the late 2000's it had 3/4" of RR trail built into it with the rear bars at equal lengths.

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            • Matt49
              Senior Member
              • Jun 2007
              • 3123

              #7
              Originally posted by tworrick View Post
              was wondering does mastersbilt have built in right rear lag. I measured from rear axle to the 4 bar perch and with the bars 15 1/2" on both bottoms and 17 1/2 on tops. the right rear was make one inch seems like a lot
              Is this on a Smack, GenX, or LXT? It almost sounds like you have the bars in the incorrect holes for the length you're using.

              And keeks is correct, you should be measuring trail/lead from a line on the shop floor exactly parallel with the mid-plate.

              Comment

              • MasterSbilt_Racer
                Senior Member
                • May 2007
                • 14324

                #8
                Originally posted by hall99 View Post
                I squared a smack down car in the late 2000's it had 3/4" of RR trail built into it with the rear bars at equal lengths.
                I was thinking 5/8" for the same vintage. So that is reassuring.
                Modern Day Spec Wedge Racing

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                • mod88s
                  Senior Member
                  • Dec 2008
                  • 226

                  #9
                  Anyone know how much trail a 2011 gen x car has?

                  Comment

                  • Matt49
                    Senior Member
                    • Jun 2007
                    • 3123

                    #10
                    One thing to keep in mind is that "static" trail is going to be dependent on where you end up on your LR ride height. Assuming RR ride height is at spec.

                    Mod88s,
                    Clean-out your inbox. I can't reply to the message you sent me.

                    Comment

                    • 25rjr
                      Banned
                      • Feb 2016
                      • 36

                      #11
                      Originally posted by hall99 View Post
                      I squared a smack down car in the late 2000's it had 3/4" of RR trail built into it with the rear bars at equal lengths.
                      Those cars surely turned.....and turned....and turned. lol

                      Comment

                      • TheJet-09
                        Senior Member
                        • Jul 2013
                        • 1616

                        #12
                        My 2007 Smackdown was 3/4" back on the right side based on it's relation to the mid-plate (it isn't anymore). Even when it was hooked up it'd drive you straight out towards the wall. I didn't like that feeling.

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