Impala SS Steering box on 94 Fleetwood?
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RWD 19xx-1984 DeVille and Fleetwood,
1985-1996 Fleetwood and Brougham Forum Discussion, Impala SS Steering box on 94 Fleetwood? in Past Cadillac Vehicle Discussion; Well, I have play in the steering box side to side as observed at the pitman arm, so it's time ...
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    Poda is offline Cadillac Owners Fanatic
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    Impala SS Steering box on 94 Fleetwood?

    Well, I have play in the steering box side to side as observed at the pitman arm, so it's time for a reman or new steering box. I've wanted to tighten up the steering on the blue car for a while in prep of the large HP and performance increases it's going to get, so now's the time- I know the Impala SS steering box has a closer ratio, but is it a direct replacement for the stock box I have in there now?

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    cadillac kevin's Avatar
    cadillac kevin is offline Cadillac Owners Master
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    Quote Originally Posted by Poda View Post
    Well, I have play in the steering box side to side as observed at the pitman arm, so it's time for a reman or new steering box. I've wanted to tighten up the steering on the blue car for a while in prep of the large HP and performance increases it's going to get, so now's the time- I know the Impala SS steering box has a closer ratio, but is it a direct replacement for the stock box I have in there now?
    I think some of these caddys had variable ratio steering though...not exactly sure how that works...I imagine you'd have some sensor wires to plug.

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    Poda is offline Cadillac Owners Fanatic
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    Re: Impala SS Steering box on 94 Fleetwood?

    Mine has variable, but I won't mind if I lose it. Pretty sure the sensor is at the column and the VES applies different pressures at the pump, but I'm not sure. Either way, there's a mod that can be done at the sensor on the column to put the pump into minimal assist all the time, which I was meaning to do on this particular car anyway.

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    Re: Impala SS Steering box on 94 Fleetwood?

    I believe you will also need the longer pitman & idler arms from the Impala to achieve the correct amount of travel if it is a tighter ratio.

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    Stingroo's Avatar
    Stingroo is offline Wagon/Audio Enthusiast
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    Re: Impala SS Steering box on 94 Fleetwood?

    The pitman arm is the same between the 2.5 (well, 2.7) Impala SS/9C1 steering box as it is for the standard 3.5 turn B-body box.

    If your new box doesn't already COME with a pitman arm, remember that the torque on that nut is high. 185 ft.-lb. is spec.

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    Poda is offline Cadillac Owners Fanatic
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    Re: Impala SS Steering box on 94 Fleetwood?

    Awesome.. so aggregating all the posts, I just want to confirm what I need for the swap:
    SS/9C1 box - bolts in
    Pitman arm if not with the steering box
    SS/9C1 Idler arm

    Lookin' forward to it

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    cadillac kevin's Avatar
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    I did not know you need the idler arms

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    jayoldschool is offline GM RWD V8 addict
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    Re: Impala SS Steering box on 94 Fleetwood?

    No difference with the idler arm.
    Stingroo likes this.

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    Poda is offline Cadillac Owners Fanatic
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    Re: Impala SS Steering box on 94 Fleetwood?

    That's even better.. Wouldn't happen to have a spare steering box would you Jay?

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    Re: Impala SS Steering box on 94 Fleetwood?

    Yeah I was about to say... don't think you need a different idler arm.


    Poda - Rock Auto has them for a pretty decent price. I'll be getting one for my wagon while the engine is out (here goes the "While it's out...." list!)

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    csbuckn is online now Cadillac Owners Master
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    Actually...there is a difference in pitman arms...but which one you need is decided by the car's suspension. If your 94 has a steering dampener, the pitman arm would be different then a car without the steering dampener like the Impala. You can see a difference in length and level between the two pitman arms. Worst case is that you have to take off your current pitman arm and use it on the new box like I did.

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    Poda is offline Cadillac Owners Fanatic
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    Re: Impala SS Steering box on 94 Fleetwood?

    Good to know. Now if I lower my suspension in the future, will I need different idler/pitman arms?

  14. #13
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    Re: Impala SS Steering box on 94 Fleetwood?

    Nope.

    If you go CRAZY LOW, your tie rods will hit the frame, but... you can notch for that.

    I sit about 3.5 inches lower than stock in the wagon, and my wheels/tires are another .2 shorter than stock, and I have no troubles. Nothing hits, rides smooth, looks great. I will say though, I removed my factory bump stops. I have never heard my control arms hit anything, and believe me - I drive the SHIT out of this car - but I will eventually put a shorter set of bump stops in, just in case... (or when I go lower. When, not if.)

    Same car, pretty much, so... relevant:



    My buddy Tim is lower than I am. His tie rods hit his frame over large bumps. He needs to notch:


  15. #14
    Poda is offline Cadillac Owners Fanatic
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    Re: Impala SS Steering box on 94 Fleetwood?

    Stingroo -I love the rideheight on the wagon - what shocks/springs did you use to achieve it?

  16. #15
    Stingroo's Avatar
    Stingroo is offline Wagon/Audio Enthusiast
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    Re: Impala SS Steering box on 94 Fleetwood?

    Easy.

    Shocks - Monroe Severe Service 550012 and 550013 F/R.

    Some guys here say they're too firm and rattle your teeth out. I say, that just means your roads suck.

    Front springs are spec for an F-body I believe. Moog 5662.

    Rear springs are for an A-body wagon, Moog CC501.

    Car rides great. Not sure what you'd use for your rears, but you can use the same front springs for sure. The whole setup was about $130 SHIPPED from Amazon.com. Way better than $300+ for an "Impala SS" lowering kit from most major companies. I'm too poor for that.

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