Fatigued Lateral Arms

How common is it for the lateral arms (I assume the bars that are parallel with the rear spring are called) to fatigue and/or corrode to the point of failure?
The reason I got my car for $800 Cdn was those bars were rotted off of the drivers side. It is now repaired and aligned and works well.

This car is a 1991 GP LE

Mc

LOL, at the current exchange rate you got the car for $678 US. maybe i should be shopping in canada. What do mechanic's charge by the hour up there? maybe i should get my car fixed there too. i'm in a bordering state.

Mechanics charge between $65 and $95/hr depending on the quality and knowledge of their work. I don't know if that is much better then there.

Let me know.

Mc