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  1. #1
    Join Date
    Apr 2001
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    Central CA USA
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    Default Art Morrison IRS install, 67 Camaro

    I'm installing my Art Morrison IRS in my 67 Camaro.
    This version uses the upgrade Strange Aluminum differential with Dana 60 internals.
    Art Morrison also has a Camaro diff version.
    Photos and notes to follow.

    Name:  IRS on pallet.jpg
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    Name:  IRS on pallet side view.jpg
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    Trial fitting IRS in position
    Name:  IRS rear view.jpg
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    Setting crossmember in position
    Name:  IRS crossmember.jpg
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    Had to cut out the rear seat area for clearance. Leave a flange that can be bent to set a filler panel into.
    Name:  IRS rear seat cut.jpg
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    View from underneath with suspension in place.
    I may have to cut the floor more to clear the mufflers. This is the best area for mufflers.
    Name:  IMG_0400.jpg
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    Last edited by David Pozzi; 1 Week Ago at 11:20 AM.
    67 Camaro RS that will be faster than anything Mary owns.


  2. #2
    Join Date
    Mar 2002
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    Redwood City, CA
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    1,895,413,648
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    Looks great Dave! I should try and head down for a visit one of these days.
    Allen Ortega
    Meanstreets Performance Fabrication

    ---------------------------------------

    Vegetarians are the reason for global warming

  3. #3
    Join Date
    Nov 2006
    Location
    Mountain Springs, Texas
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    Default

    I've got one of these on order and I'm also planning to install a new trunk floor and minitubs. Any advice on the best way to go about this would be appreciated. I've been giving this a lot of thought but can't quite decide what would be best.

    Thanks,
    Don
    1969 Camaro - LSA 6L90E AME sub/IRS
    1969 Camaro convertible - LS3 4L65E Ridetech Level 2 Tru-Turn
    1959 El Camino project

  4. #4
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    Apr 2001
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    Allen, Come on down!
    Don, I needed to decide wether to do the IRS install first, or do the Mini-Tubs. I decided to do the Mini-Tubs after, thinking the tubs would go up against the frame rails & need to be welded to them. These rails don't toe-in like stock rails so they are around 3" wider apart at the front crossmember. I was told to leave the old frame rail spot welds & flanges so there would be more "meat" to weld to but they didn't line up with the new rails except for the area of the bend at the top by the shock mounts and only on the outboard side there. I removed them everywhere else.

    I'd do the trunk floor first, then the frame rails, then Mini-Tubs. I did find next to no flex once the frame rails were cut out. When I did Mary's second gen I was worried the unibody would shift around. I cut through the RH frame rail for the crossmember and the rear section dropped 3/4"! I was worried I wouldn't be able to push it back up to weld to the crossmember but it worked out fine.

    Other than frame rail removal, the only cutting needed was at the rear seat pockets where the seat belt anchors are & the trunk kickup. I'll post a photo of where I cut.
    You could install this suspension without removing your frame rails, but you would have to notch them out to install the crossmember, and plate the frame rails with 11 gage cold rolled steel on at least the inboard sides and bottom for at least 16" then locate and weld in the 4 cradle mounting tabs and upper shock mounts. The cradle & shock mounts weld to the frame rails.

    The trunk floor will have to be cut right above the gas tank strap anchors, a flange bent upward, then a steel panel inserted around 3" tall across the trunk. I cut and bent up the floor where it slopes down, will post photos when I get it done.
    Last edited by David Pozzi; 1 Week Ago at 03:36 PM.
    67 Camaro RS that will be faster than anything Mary owns.

  5. #5
    Join Date
    Nov 2006
    Location
    Mountain Springs, Texas
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    Thanks David.
    1969 Camaro - LSA 6L90E AME sub/IRS
    1969 Camaro convertible - LS3 4L65E Ridetech Level 2 Tru-Turn
    1959 El Camino project

  6. #6
    Join Date
    Feb 2012
    Location
    SW, Michigan
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    876
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    Nice!!!

  7. #7
    Join Date
    May 2005
    Location
    Socal, Ca
    Posts
    877

    Default

    The suspension looks great!

    The rear fenders look ridiculous(good ridiculous)
    Keep the pics coming.

  8. #8
    Join Date
    Dec 2004
    Location
    Scottsdale, AZ
    Posts
    635

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    Looks Awesome! We’re glad to see you guy’s are in the Art Morrison family. Re affirms Jack and I are on to something here.

    I cut my tubs out, trimmed the trunk and inner wheel tubs prior to install the AM Tri-4 bar. Jack and I got it in and set up in one day of work.

    We installed the AM frame with the old crappy quarter panels on to reduce any body flex issues. Everything held together well on the frame rack.
    Attached Images Attached Images            
    69 Camaro
    Art Morrison C6 Subframe
    Art Morrison Tri-4 link
    67 Camaro
    Art Morrison C6 Subframe
    Lateral Dynamics Rear Suspension

  9. #9
    Join Date
    Nov 2006
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    Mountain Springs, Texas
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    Very helpful pics. Thanks Cdog.

    Don
    1969 Camaro - LSA 6L90E AME sub/IRS
    1969 Camaro convertible - LS3 4L65E Ridetech Level 2 Tru-Turn
    1959 El Camino project

  10. #10
    Join Date
    Dec 2004
    Location
    Scottsdale, AZ
    Posts
    635

    Default

    Quote Originally Posted by dhutton View Post
    Very helpful pics. Thanks Cdog.

    Don
    69 Camaro
    Art Morrison C6 Subframe
    Art Morrison Tri-4 link
    67 Camaro
    Art Morrison C6 Subframe
    Lateral Dynamics Rear Suspension

  11. #11
    Join Date
    Aug 2008
    Location
    Iowa
    Posts
    297

    Default

    That's what I need...Art Morrison stuff. That IRS looks sweet. I can't wait to hear Mary's, I mean David's reviews. haha

  12. #12
    Join Date
    Jul 2011
    Posts
    217

    Default

    Very cool

  13. #13
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    Apr 2001
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    Central CA USA
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    Here are more pics of the progress.

    Rear view installed
    Note gap into trunk area where light is shining through.
    Name:  IRS installed rear view.jpg
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    Front view installed

    Name:  IRS installed front view.jpg
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    Last edited by David Pozzi; 1 Week Ago at 02:09 PM.
    67 Camaro RS that will be faster than anything Mary owns.

  14. #14
    Join Date
    Sep 2010
    Location
    Santa Clara, CA
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    574
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    Dang, that thing is the BEEF! I can only assume that sub-frame connectors are in your future? :-)
    Steve

  15. #15
    Join Date
    Apr 2001
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    Central CA USA
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    Yes, I'll fab some subframe connectors. I'm trying to decide if I should attach them to the leaf spring mounting plates just ahead of the crossmember, then make filler plates to the crossmember, or to cut through the floor and weld the connectors directly to the crossmember.
    There isn't going to be access room to weld to the crossmember unless I cut a huge hole in the floor.
    67 Camaro RS that will be faster than anything Mary owns.

  16. #16
    Join Date
    Aug 2008
    Location
    Iowa
    Posts
    297

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    That looks like it could take anything you throw at it!

  17. #17
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    Apr 2001
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    Central CA USA
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    Dana 60 by Strange, Driveshaft shop axles, 930 style CV joints, ZR1 hub bearings, rated at 1400 hp. It should hold up.
    67 Camaro RS that will be faster than anything Mary owns.

  18. #18
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    Apr 2001
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    Puzzling over how to route 3" exhaust around the fuel tank. The right side is a snap compared to the left. It looks like for a Rick's tank the lower edge should be moved rearward 1.5" to gain a little more room, the corners need to be lopped off like the DSE version. to allow room for the pipes to go around the corners.
    AME ran 2.5" pipes over the round tube next to the diff, 3" can't quite make it.
    Name:  exhaust left.jpg
Views: 20
Size:  85.6 KB
    Last edited by David Pozzi; 1 Week Ago at 02:10 PM.
    67 Camaro RS that will be faster than anything Mary owns.

  19. #19
    Join Date
    Dec 2009
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    1,612
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    Great project David!
    Ron in SoCal
    69 Camaro in progress
    http://www.lateral-g.net/forums/showthread.php4?t=31246

    Used to be known as flash911

  20. #20
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    Apr 2001
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    Central CA USA
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    I'm doing trunk filler panels now, then on to the Mini-Tubs.
    67 Camaro RS that will be faster than anything Mary owns.

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