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Chevy 7.5 rear

Discussion in 'The Hokey Ass Message Board' started by Dynaflash_8, Nov 6, 2009.

  1. Dynaflash_8
    Joined: Sep 24, 2008
    Posts: 3,048

    Dynaflash_8
    Member
    from Auburn WA

    How strong are they?

    I got one out of a 4wd S10.

    I had an 8.5 out of a 77 nova that i grenaded. Too many peg leg burnouts.

    Im not looking for dragracing, it'll be a street car with a cammed 305.

    i already got it set-up and hangin on the springs, but iv been told that it was a mistake to use it.

    Any imput?:confused:
     
  2. Truckedup
    Joined: Jul 25, 2006
    Posts: 4,660

    Truckedup
    Member

    The 7.5 or the supposed slightly stronger 7-5/8 gear will hold up ok to 250 plu hp with non shock load drag strip type driving.I believe the last generation Camaros,like 2002 and older used the 7-5/8 rear with an honest 300 plus HP available on later models.
     
  3. onlychevrolets
    Joined: Jan 23, 2006
    Posts: 2,307

    onlychevrolets
    Member

    They are not that strong, if you've killed a 8.5 this 7.5 will die too...
     
  4. 65stepside
    Joined: May 26, 2009
    Posts: 128

    65stepside
    Member

    it all depends how you drive
    daily driver with a minimum of hooliganizim should be ok
    my 12 sec cutl*** w/o traction shreds them
    finally got smart and upgraded
    onlychevrolets is right if you kiulled a 8.5 not much hope for a 7.5
     
  5. 65stepside
    Joined: May 26, 2009
    Posts: 128

    65stepside
    Member

    dammit that should be killed
     
  6. brownsmetal
    Joined: Sep 16, 2007
    Posts: 422

    brownsmetal
    Member

    I was wondering the same thing. They seem to have alot of aftermarket support- axles c-clip eliminators,spools,lockers,girdled covers etc.... How strong can one be made with over the counter parts?
     
  7. aerorocket
    Joined: Oct 25, 2007
    Posts: 488

    aerorocket
    Member
    from N.E. P.A.

    Hot Rod did an article on one about a year ago and said it could be made to handle 400hp at the rear wheels. From what I remember the addition of the girdle was the key to making it last.
     
  8. narducci
    Joined: Jan 3, 2008
    Posts: 194

    narducci
    Member

    Im using one in my build. It will be a mild 305 and TH350 combo and built just for cruzin.
    there a lot of S10s out there with sbc power doing fine
     
  9. Hackerbilt
    Joined: Aug 13, 2001
    Posts: 6,250

    Hackerbilt
    Member

    I would go with the later S10 axle ***embly. I've seen the 7.5's die....
    The later one that was used with the 4.3 is much stronger. My Cousin uses his 350 S10 4dr Blazer for plow duty and still has the original 4.3 rear axle.
    Going on 4 years with no issues at all.
     
  10. scottybaccus
    Joined: Mar 13, 2006
    Posts: 4,109

    scottybaccus
    Member

    All of the late model F-body cars use the 7 5/8. axle. It was good enough that Lingenfelter only changed the limited slip diff when he hotrodded the Camaros. The 7.5 is little iffy, but not too bad.
     

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