Replacing Struts

[2.2vtec]

If one of my struts is going but all the other ones are still good, is there a problem with just replacing the one strut or should I replace the two front??

[Foz]

Rule of thumb, you should replace both struts even only one is bad.

[ZMan2k2]

Replace both of them on the same axle. As the strut wears, the seals degrade somewhat, and decrease the original strength of the shock. If you just replace the blown one, you'll have essentially the same situation you have now, one shock stronger than the other. This can lead to "interesting" driving habits of the car, especially after going over rough roads (so driving anywhere in Calgary). That's why you replace both on the same axle when one goes bad.