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neck replace question

Discussion in 'Luthier's Corner' started by Dr.Pizza, Jul 21, 2009.

  1. Jul 21, 2009 #1
    Dr.Pizza

    Dr.Pizza

    Jun 30, 2009
    Hello guys,
    I have this jazz bass copy and I'm about to replace the neck
    to a precision bass neck.
    so I bought an allpart's precision neck to my bass, but I'm facing
    a problem.
    The original jb neck is 21 frets while the pbass one is only 20 frets.
    The position of the 20th fret of the pbass is placed a little
    bit down compared to the 20th fret of the jazz bass.

    Bellow a image to help you guys to understand it.
    [​IMG]

    My question is , can I have problems with intonation?
    What about I place the bridge a little bit down too?
    The square on the body represents the bridge. I've used MS Paint to draw that thing you guys may laught later :)


    I went to a luthier but this guys is asking my kidney to do this job I'm sure I can do it if I'm ok with the positions.
    Thanks for the help.
     
  2. Jul 21, 2009 #2
    Rocky McD

    Rocky McD

    Jun 28, 2005
    San Antonio, Texas
    Builder,mcdcustomguitars
    You did not mention the scale length of the bass neck. If it is 34", place the bridge saddles 17" from the 12th fret.
     
  3. Jul 21, 2009 #3
    Rebop

    Rebop

    Jul 9, 2008
    La Honda, CA
    Monkey that thing together. What are you afraid of?
     
  4. Jul 22, 2009 #4
    Dr.Pizza

    Dr.Pizza

    Jun 30, 2009
  5. Jul 22, 2009 #5
    mikeyswood

    mikeyswood Inactive

    Jul 22, 2007
    Cincinnati OH
    Luthier of Michael Wayne Instruments
    Are you serious?
     
  6. Jul 22, 2009 #6
    John Wentzien

    John Wentzien

    Jun 25, 2007
    Elberta, AL
    Artist:TC Electronic RH450 bass system (original test-pilot)
    I'm pretty sure those necks just have the fingerboard extended beyond the neck heel for the 21st fret. That puts the heel in the same spot as a 20-fret neck.
     
  7. Jul 22, 2009 #7
    murphy

    murphy Supporting Member

    May 5, 2004
    Canada
    Why not make a wood block that fits in the pocket to compensate for the shorter neck?
    I have done it before and it worked great.

    Unless of course what John said is true.
     
  8. Jul 22, 2009 #8
    John Wentzien

    John Wentzien

    Jun 25, 2007
    Elberta, AL
    Artist:TC Electronic RH450 bass system (original test-pilot)
    I don't think the would sell a neck as a "licensed by Fender direct replacement" unless it is as I described. It should bolt right up --no problem.
     
  9. Jul 22, 2009 #9
    John Wentzien

    John Wentzien

    Jun 25, 2007
    Elberta, AL
    Artist:TC Electronic RH450 bass system (original test-pilot)
    No-one would buy a replacement neck if you had to move your bridge for just 1 more fret.
     
  10. Jul 22, 2009 #10
    Dr.Pizza

    Dr.Pizza

    Jun 30, 2009
    yeah no reasons to get worried about...

    thanks
     
  11. Jul 22, 2009 #11
    kimokeo

    kimokeo

    Jul 7, 2009
    I have an all parts jazz neck on a fender jazz body. It bolted right up with no problems of any kind. IMO, you should have no issues with their product.
     
  12. Jul 22, 2009 #12
    BassieMike

    BassieMike

    Apr 11, 2008
    Northern California
    The 21 fret neck's fingerboard extends past the end of the neck shaft while the 20 fret neck's fingerboard stops at the end of the neck shaft. When attached to the body the 12th fret (center of the scale length) will be in the same place. End of story.

    -m