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Thread: Tri-five Power Steering-I Need Educated

  1. #11
    Registered Member BamaNomad's Avatar
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    William,

    You don't need (nor can you use) both a 605 steering box AND a rack/pinion steering gear. Both of those items do the same thing in totally different ways.

    The 605 steering box basically replaces the original steering box supplied on our Trifives, but require that you cut your steering shaft and install a rag joint to connect to the 605 (which bolts to the frame the same as or similar to the original box.

    The Rack and Pinion steering is a totally different animal, but accomplishes the same task (controlling the steering angle of the front wheels). Incorporating a rack n pinion into a trifive is not a simple task, nor is it guaranteed to work as you hope.

    Follow Rick's suggestion below and go with the 605 (or the later 500) as a substitute for the original box.
    Last edited by BamaNomad; 11-07-2021 at 08:00 PM.

  2. #12
    Registered Member Old Buzzard's Avatar
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    605 = BAD CHOICE! BTDT.
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  3. #13
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    I was at the local Chevy restoration dealers house a while back and he had a stack of 605 boxes laying in the rain rusting. No one wants them anymore, your car drives bad and they leak.

  4. #14
    Registered Member 210Chevy's Avatar
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    Well; I hope everyone had a Merry Christmas, & a Happy 2022. I ended up buying a chrome 16" DD Shaft and 2 chrome U-joints for my GM 605 Steering box couldn't get the ragjoint to work right will see how that works out. Is it better to drill hole thru the shaft? or use set-screws to attach to aftermarket column?
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    Thank You!
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  5. #15
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    THe steering haft is not a good place to experiment, I would spend the $400 and buy a 500 box. Most 605s are leakers around the o-ring anyway.

  6. #16
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    You don't need a shaft at all to correctly mount a 605 steering box, same with CPP and Borgeson.

  7. #17
    Registered Member fiftysix chevy's Avatar
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    In my opinion (which is like an A-hole we all have) drilling a hole and using a bolt with a nylock nut would be the safest option.

  8. #18
    Registered Member busterwivell's Avatar
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    I tack weld mine, too.

  9. #19
    Registered Member BamaNomad's Avatar
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    I think the best connection thru a coupler would be either a splined connection or a D connector, as the factories do.

  10. #20
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    I am with Bama on this one.

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