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frt axle

Discussion in 'HA/GR' started by jeff/21, Jun 16, 2008.

  1. what is the difference in handling between a wide Chev or Fpord axle and a narrow Prefect or Morris axle.I have a 37 Morris 8 frt axle sitting in the shop.
     
  2. 64 DODGE 440
    Joined: Sep 2, 2006
    Posts: 4,434

    64 DODGE 440
    ALLIANCE MEMBER
    from so cal

    If you are going in a straight line it shouldn't really make much difference.

    If you are planning on using it on an HA/GR it should be lighter and that's a good thing. :D
     
  3. ThingyM
    Joined: Sep 4, 2006
    Posts: 812

    ThingyM
    Member

    NOPE.. Sorry,, If you have a standard width rear axel/ 55"-60"and you try a narrower axel on the front. That makes like a reverse wedge..ALL cars including stock cars have narrower rear axels than front..If you built your car in the reverse wedge style..Your car will "HUNT". and you will have to make constant corrections..That is why the Old Rails went to the narrowed rearends..On a 300" long rear engine Dragster it is not nearly the problem as it is on a short car.. Example.. Take your hands and put them together at your finger tips with the palm open..Now move your palms back and forth. notice how little your finger tips move now reverse the action.. So if the front end moves a little, The backend moves alot.. I hope this is clear..
     
  4. Old6rodder
    Joined: Jun 20, 2006
    Posts: 2,546

    Old6rodder
    Member
    from SoCal

    As trike putters find out the very first ride, you don't take your hands off the bars for any substantial length of time.

    That said, you wouldn't be taking your hand off the wheel in a race at any rate so for a quarter horse it'd be an acceptable nuisance, long as you don't mind having to stay on top of it. Lots of folks putt trikes.
     
  5. one of the cars running now has a Morris axle- ask them.
    How wide is the track width on that anyways ?
     
  6. ThingyM
    Joined: Sep 4, 2006
    Posts: 812

    ThingyM
    Member

    Probably the best shot is to call a ch***is shop and ask them... Don't listen to us OLD Farts,
     
  7. FiddyFour
    Joined: Dec 31, 2004
    Posts: 9,024

    FiddyFour
    Member

    this is interesting... the front end on my willys is 2 1/2" narrower than the rear from wheel mount surface to surface... and thats without the tires stickin out the back... i dont have any of the wandering and live steering and i had been told it might do just that... wonder why? i know this is kinda OT cause its on my hotrod, but i am tryin to wrap my head around this.
    :eek:
     
  8. 64 DODGE 440
    Joined: Sep 2, 2006
    Posts: 4,434

    64 DODGE 440
    ALLIANCE MEMBER
    from so cal

    Sounds like you have it set up right if it works well. Either that or it's PFM. :D
     
  9. nexxussian
    Joined: Mar 14, 2007
    Posts: 3,237

    nexxussian
    Member

    My vote's for PFM:D;).

    I would think it has to do with how far out of straight you were getting, ie the further it would wander form straight the more effect it would have (kinda like an airplane with swept forward wings). So whatever setup you have that would keep it straightened out should counter it regardless of the respective track widths (unless there's something else wrong).

    Or am I missing something?:confused:

    FWIW I drove an autocross car a few times that was like that, first time I ever had driven anything with a wider rear track width. That was one pylon killin' machine :eek:. Not likely to have that problem on a drag car though.:rolleyes:
     
  10. 64 DODGE 440
    Joined: Sep 2, 2006
    Posts: 4,434

    64 DODGE 440
    ALLIANCE MEMBER
    from so cal

    If you look at pictures of the old g***er Anglias and Willys, most of them had narrower front tracks. Don't think it's a big problem on a quarter miler.
     
  11. R Pope
    Joined: Jan 23, 2006
    Posts: 3,309

    R Pope
    Member

    Narrow the rear end to fit!
    It's not that big a problem. Anything with dual rear wheels is way wider at the back with no handling problems. The weight difference to a rod is going to be a factor, but how many street machines have huge tires sticking way out of the rear wheelwells with no steering difficulties?
     
  12. ThingyM
    Joined: Sep 4, 2006
    Posts: 812

    ThingyM
    Member

    Pope,, For one reason.. The back inside rim have a large Backspacing which brings them in narrower than the front axel width..
    BUT,, Build as you see fit... I'll stay out of it''
     
  13. Old6rodder
    Joined: Jun 20, 2006
    Posts: 2,546

    Old6rodder
    Member
    from SoCal

    And narrowing the rear isn't allowed. Using a narrower stock one would be of course but ...........

    Yes, we're seriously over thinking the thing. A narrower front is (from a practical point of view) perfectly fine. All the "drawbacks" noted are minor at best, highly unlikely and completely addressable should they occur.

    Build, baby, build. :D
     
  14. FiddyFour
    Joined: Dec 31, 2004
    Posts: 9,024

    FiddyFour
    Member

    ah, ok... whats PFM?
     
  15. 64 DODGE 440
    Joined: Sep 2, 2006
    Posts: 4,434

    64 DODGE 440
    ALLIANCE MEMBER
    from so cal

    P(ure) F(reakin) M(agic).......thought everyone new that.:D
     
  16. FiddyFour
    Joined: Dec 31, 2004
    Posts: 9,024

    FiddyFour
    Member

    lol, never heard that one before. similar tho.,.. BFL

    Blind ****in Luck :D
     
  17. CrkInsp
    Joined: Jul 17, 2006
    Posts: 513

    CrkInsp
    Member
    from B.A. OK

    Those two work hand in hand for some people.
    And against each other for others.
     

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