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My idler arm and center link need to be replaced. Shop recommends replacing pitman arm at the same time. I can find a Proforged pitman arm for the Buick Roadmaster, but not for a Cadillac Fleetwood. I like the idea of updating the entire steering system, so I hope we can focus on the part identification and not get into an intellectual discussion on whether a pitman arm would ever need to be replaced or not.
 

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It's the same part as Roadmaster.
 

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Shop recommends replacing pitman arm at the same time.
If the shop can not give you a good reason to change the pitman arm you may not have the right shop.The pitman arm wears out the center link but normally does not have a wear point itself.

The Pitman arm is on the steering box and not normally an Item that is changed when
doing front end work.
The Pittman arm is not a wear item, so it is seldom replaced. The only time you would replace it is if it was damaged in a wreck. There are 3 different sizes of the arm. There is a thread from a couple of years ago that enumerated the differences. Use the search function to find it
If you search pitman arm on the forum you will find more information like this.
 

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The common reason for needing a pitman is if the attaching nut is loose after a curbing incident.
The taper can be damaged in an impact.
I will say, from many first hand years in the industy, the sector also twists right above pitman really easy in a crash.
If the car has not been hit ,and the nut is tight then, as stated above, you might be wanting your shop to explain themselves.
 

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The Pittman arm is not a wear item. You should never have to replace it unless the hole gets wallowed out, and that is nearly impossible. I think your garage is trying to make an extra buck at your lack of knowledge. The part that is the real culprit is the idler arm on the other side. I had to replace the center link recently, and the center link ball joint was damaged to the point that it was difficult to remove from the Pittman arm. I had to remove the arm and center link together, and separate them outside of the car. I reinstalled the Pittman arm and installed the new cross link.
 

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I know that a towing package Roadmaster pitman arm is different than a regular Roadmaster. There are a different amount of cogs.
Excuse me?

That would mean that the towing package also used a different steering box, which seems unlikely.
 

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I agree with the majority here. Pitman arms seldom need to be changed. The idler arm on these cars are a weak point. And I would replace them with a Moog part. I am sure everyone knows that the center link on a Fleetwood is different than one on a Roadmaster. The steering damper is on the opposite side between the two cars. The steering damper is different too, but the Moog part will work on either car.
 

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There were 3 different Pitman Arms. Their lengths varied very slightly. It was not a Caddy / Buick / Chevy thing.
More like FE1? FE2? FE3? FE4? F40? F41? 7B3? 8X3?
Even the same ratio steering box could get a different length Pitman Arm, depending on which suspension variant.


For further reading (Navy Lifer is awesome):




 
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1995 Cadillac Fleetwood Brougham
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There were 3 different Pitman Arms. Their lengths varied very slightly. It was not a Caddy / Buick / Chevy thing.
More like FE1? FE2? FE3? FE4? F40? F41? 7B3? 8X3?
Even the same ratio steering box could get a different length Pitman Arm, depending on which suspension variant.


For further reading (Navy Lifer is awesome):




Apparently I got really lucky when I bought my pitman arm and steering box. Nice.
 
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