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Thread: 280z

  1. #1
    Senior Member Sunny Z's Avatar
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    280z

    Hi all:

    I've been doing some small stuff with the car, and I thought I'd keep this forum up to date.

    For those of you who don't know me; here is my 78 280z. LS1-T56



    I kept breaking shit last year (axles). So, I decided this winter to upgrade to a cobra IRS 8.8.

    I'm making good progress, and am just waiting on parts to arrive so I can measure and buy more parts!

    Here's a shot of the diff mounted.





    Its now all welded up. Thanks to Phish and Sharpie for their contributions!


    In efforts to make the car safer / legal, I bought a generic driveshaft loop with intentions of modifying it, but I'd never gotten around to it. SO thats what I did tthis weekend.

    I bought this one:

    sum-g7900.jpg

    and hacked it up. I added it to my existing tranny crossmember, and viola!






    Basically all thats left is a few more stock parts I need to source, assemble my coilovers for the rear, measure for the axles / driveshaft, and have them built!

    Oh, and brakes...... if you're into that kind of thing.
    1978 Datsun 280z - LS1/T56 - Hole in my garage I throw money into

    If I had all the money back that I've spent on cars
    I'd spend it on cars

  2. #2
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    looks nice!
    Rob Palmer
    Rest in Peace buddy...

    "I wish I could buy stuff for my car, but there's nothing else to buy...except a steering wheel." Ryan

  3. #3
    Owner AutoMods's Avatar
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    nice work, is their any rear end mount kits made or all custom?

    your tranny mount cross bar looked similar to the way mine was. i cut out a section on mine and welded in a triangular shape hugging the tunnel to make room for a larger exhaust.


  4. #4
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    Good to see it progressing man, good to see you ended up with a full aluminum case, iron's are heavy as balls.
    1989 Mustang 408W TT Built by me. Sippin Corn cocktails. 721hp 765TQ on 10lbs

    2004 Subaru Forester XT 5spd

    1979 Yamaha XS 1100, 70's goodness.

  5. #5
    Senior Member Phish's Avatar
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    Speaking of, the piece i welded for you is at jordans, I figured you would be there again before my place so i dropped it off last night when i took him his manifold.

  6. #6
    Moderator slow ride's Avatar
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    Is there much strength difference between aluminum and iron 8.8 irs center sections?
    02' TT Z06
    00' Audi S4
    02' Tundra
    02' Honda Superhawk slow, but sounds fast

  7. #7
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    Cobras have an aluminum diff and I've never seen one break. I'm sure people have,
    1989 Mustang 408W TT Built by me. Sippin Corn cocktails. 721hp 765TQ on 10lbs

    2004 Subaru Forester XT 5spd

    1979 Yamaha XS 1100, 70's goodness.

  8. #8
    Senior Member Sunny Z's Avatar
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    Quote Originally Posted by Phish View Post
    Speaking of, the piece i welded for you is at jordans, I figured you would be there again before my place so i dropped it off last night when i took him his manifold.
    If you jabronies would have answered my calls last night I would have come and gotten it.
    1978 Datsun 280z - LS1/T56 - Hole in my garage I throw money into

    If I had all the money back that I've spent on cars
    I'd spend it on cars

  9. #9
    Senior Member Phish's Avatar
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    Our phones never rang last night the whole time we were in the garage. I was texting and jordans was pumping out the pandora so i am sure we would have noticed. But anyway, its there just chillin on the floor for ya.

  10. #10
    Junior Member ON3IWIN's Avatar
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    Nice setup. Any mods done to the rearend other than what I can see? Does it have the rear cover brace on it or did you make a different kind of mount? I would also upgrade those front bushings if you havent done so. Those two mods helped a ton on my 04 Cobra. No more destroyed diff covers.

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