8.75 rear carrier suggestion

Discussion in 'Transmission and Drivetrain Tech' started by 7dart0, Aug 9, 2018.

  1. 7dart0

    7dart0 Well-Known Member

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    I am in the process of gathering parts to rebuild my 742 case. I have 4:10 gears and the install kit. What should I get for the carrier? Locker, suregrip, suretrac, etc...

    It's a summer car that will be at the dragway 6-12 times a summer with slicks.
    I currently run 12.4 @ 110 in the 1/4 with my 3:55 gears.
     
  2. mderoy340

    mderoy340 Well-Known Member

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    Suregrip works for me.
    Cass sells them new. Most older units have internal gear wear and excessive runout after 50 years of use.
    Mopar 8 3/4" (8.75) Clutch Type Sure-Grip ("Powr-lok")
     
  3. MoparMike1974

    MoparMike1974 Well-Known Member

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  4. Jadaharabi

    Jadaharabi FABO Gold Member FABO Gold Member

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    Do you already have a suregrip in the 742 housing?
     
  5. RustyRatRod

    RustyRatRod Just another dumbass. FABO Gold Member

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    The Dana Power Lock is by far the strongest clutch type unit. The Torsion unit is nice in that it has no parts to wear out like clutches. The Detroit Locker is an almost indestructible piece, but it does make noise on operation.
     
  6. 7dart0

    7dart0 Well-Known Member

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    The 742 case I have is an open diff.

    Thank you for the replies.
     
  7. 7dart0

    7dart0 Well-Known Member

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    I tried adding it to my cart but it says no products available. He must not be selling them anymore.
     
  8. Jadaharabi

    Jadaharabi FABO Gold Member FABO Gold Member

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    .
    He still sells them. Give him a call.

    Cass is a nice guy to deal with.
     
  9. mderoy340

    mderoy340 Well-Known Member

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    X2 he may be out and can let you know when to expect delivery.
     
  10. stroked340

    stroked340 Well-Known Member

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    Tru-Trac have run 2 of them..never a problem:thumbsup::thumbsup:
     
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    • 7dart0

      7dart0 Well-Known Member

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      So I ended up going with a sure grip from doctor diff. He just got them back in stock. I Ordered it last night .

      Thank you for all the replies
       
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      • rumblefish360

        rumblefish360 so close yet so far away

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        So! Which one preferred for serious street power?