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Cutting hole for firewall trany plate

Discussion in 'Early CJ5 and CJ6 Tech' started by gscj5, Sep 6, 2005.

  1. Sep 6, 2005
    gscj5

    gscj5 H2 Recovery Team

    Kettering, Ohio
    Joined:
    Sep 22, 2002
    Messages:
    339
    With the fiberglass tub do I really need to cut the hole for the big trany firewall plate or should I just cut a hole for the trany cover? Do you think cutting the hole for the firewall trany plate would compromise the strength of a fiberglass tub? Have any of you done it.
     
    gscj5, Sep 6, 2005
    #1
  2. Sep 12, 2005
    gscj5

    gscj5 H2 Recovery Team

    Kettering, Ohio
    Joined:
    Sep 22, 2002
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    339
    What do you think guys, any info would be better than none.
    Thanks
     
    gscj5, Sep 12, 2005
    #2
  3. Sep 12, 2005
    Dummy

    Dummy I kick hippies

    Escondido, CA
    Joined:
    Dec 5, 2004
    Messages:
    646
    I'd cut as little as possible. The more fiberglass you leave intact, the more rigid your tub will be.
     
    Dummy, Sep 12, 2005
    #3
  4. Sep 12, 2005
    Mudweiserjeep

    Mudweiserjeep JEEP: Bouncy and Fun

    tipp city, ohio
    Joined:
    Jun 17, 2004
    Messages:
    718
    I did a fiber tub long time ago. I cut holes only as big as needed. I didn't use the large tranny plate. Only the tranny tower cover.
     
    Mudweiserjeep, Sep 12, 2005
    #4
  5. Sep 12, 2005
    gscj5

    gscj5 H2 Recovery Team

    Kettering, Ohio
    Joined:
    Sep 22, 2002
    Messages:
    339
    Hey thanks tim, I noticed you live in Tipp maybe you can help me break-in Old Bessy when I get her finished. :beer:
     
    gscj5, Sep 12, 2005
    #5
  6. Sep 12, 2005
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    12,381
    I'd also use a hole saw to make holes for bellhousing bolt access. The two on the top will be a pain to get at if you don't.
     
    Glenn, Sep 12, 2005
    #6
  7. Sep 12, 2005
    gscj5

    gscj5 H2 Recovery Team

    Kettering, Ohio
    Joined:
    Sep 22, 2002
    Messages:
    339
    Good idea Glenn, I can see where they would be a booger.
     
    gscj5, Sep 12, 2005
    #7
  8. Sep 12, 2005
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
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    12,381
    Of course you'll have to make some sort of cover or find some plugs for the holes. :hurrican:
     
    Glenn, Sep 12, 2005
    #8
  9. Sep 12, 2005
    Mudweiserjeep

    Mudweiserjeep JEEP: Bouncy and Fun

    tipp city, ohio
    Joined:
    Jun 17, 2004
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    718
    let me know when your ready.....or if you need an extra hand putting it together.
     
    Mudweiserjeep, Sep 12, 2005
    #9
  10. Sep 12, 2005
    lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    Huntingdon PA
    Joined:
    Sep 20, 2002
    Messages:
    3,437
    My glass tub doesn't have the firewall cut. Originally it was just enough for the tower when it was on a '68 with stock tranny. I had to enlarge that considerably to fit over the T18 when I installed the tub onto my '71 (I had the T18 swapped in while the steel tub was still on the '71), but still not into the firewall...
     
    lynn, Sep 12, 2005
    #10
  11. Sep 14, 2005
    gscj5

    gscj5 H2 Recovery Team

    Kettering, Ohio
    Joined:
    Sep 22, 2002
    Messages:
    339
    Thanks guys from keeping from making a big mistake. Have any of you thought about just laying it over top and bolting it down with out making a big hole, just for looks.
     
    gscj5, Sep 14, 2005
    #11
  12. Sep 14, 2005
    lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    Huntingdon PA
    Joined:
    Sep 20, 2002
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    3,437
    Give it a shot. No big deal if you don't like it, bolt holes are easy to fix in 'glass :)
     
    lynn, Sep 14, 2005
    #12
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