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Hot Rods 605 Saginaw Steering Box

Discussion in 'The Hokey Ass Message Board' started by lcfman, May 11, 2015.

  1. lcfman
    Joined: Sep 1, 2009
    Posts: 276

    lcfman
    Member
    from tn

    I am in need to replace the 605 power steering box on my 59 Impala. I have heard that there is a 605 box that has a little quicker steering ratio than all the others, but I can't confirm that or which one it is. These steering boxes came on late 70's/80's intermediate cars.
     
  2. Late Model 12.7:1 quick-ratio gearboxID markings YA, WS and HX
    Line Thread Size: M18x1.5 and M16x1.5
    Number of Mounting Holes: 3, (missing leg H-pattern)
    Input Shaft Diameter: ¾-inch
    Output Shaft Diameter: 1 ¼-inch
    Number of Turns Lock to Lock: 2 ½ - 3

    1984-'88 Monte Carlo/Malibu with Z65 suspension
    1983-'88 Malibu, El Camino
    1982-'92 Camaro except FE1 soft ride suspension
    1984-'87 Regal with FE2 or FE3 sport suspension
    1983-'84 Hurst/Olds
    1985-'87 Cutlass with 5.0 (VIN code 9)
    1982-'85 Trans Am
    1986-'92 Firebird except FE1 suspension
    1986-'87 Grand Prix with FE2 touring or F41 heavy duty suspension



    Pre-'76 12.7:1 quick-ratio gearbox
    Line Thread Size: 11/16 x 18 and 5/8 x 18
    Number of Mounting Holes: 4, (H-pattern)
    Input Shaft Diameter: 13/16-inch
    Output Shaft Diameter: 1 ¼-inch
    Number of Turns Lock to Lock: 2 ½ - 3

    1967-'76 Camaro, Firebird
    1970-'76 Monte Carlo/Malibu
    1964-'76 Chevelle


    1977-'79 12.7:1 quick-ratio gearbox
    Line Thread Size: 11/16 x 18 and 5/8 x 18
    Number of Mounting Holes: 3, (missing leg H-pattern)
    Input Shaft Diameter: ¾-inch
    Output Shaft Diameter: 1 ¼-inch
    Number of Turns Lock to Lock: 2 ½- 3

    1977-'79 Camaro, Firebird
    1977-'79 Monte Carlo, Malibu
    1977-'79 Chevelle


    Jeep/S-10 14.0:1 quick ratio gearbox
    Line Thread Size: M18x1.5 and M16x1.5
    Number of Mounting Holes: 3, (missing leg H-pattern)
    Input Shaft Diameter: ¾-inch
    Output Shaft Diameter: 1 ¼-inch
    Number of Turns Lock to Lock: 3 - 3 ½

    1991-'92 Fleetwood
    1992-'95 Grand Cherokee
    1984-'93 Comanche
    1984-'95 Cherokee/Wagoneer
    1983-'86 Bonneville
    1982-'93 2WD S-10 Blazer and pickup
     
  3. models916
    Joined: Apr 19, 2012
    Posts: 380

    models916
    Member

    The standard 605 is allread too quick for the alignment specs on the 59. It gets worse with radials and smaller steering wheels. You can't get enough caster to make it stop twitching on the road.
     

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