I just wanted to ask those who have had experience with rebuilding their coilovers, other than replacing the strut insert cartridge, what else is usually involved when a shop rebuilds coilovers?

I wanted to know because I currently have a set where the rear ones need to be rebuilt.

Can you guys recommend any good suspension shops here in North America that can get the job done?

 

It depends on who the original manufacturer is. Some ask you to send the old shocks back to them and issue you a new one as a replacement instead of doing a rebuild. Others can not only rebuild but re-valve. Your best bet is to contact the original manufacturer and ask them directly, they may be able to refer to authorized rebuild shops.

 

What dampers are they?

Many damper manufacturers use proprietary parts; some of these dampers should only be serviced by the manufacturer or an authorized service center.

Koni dampers, for example, can only be serviced by 4 shops nationwide: the Koni Service Center in Kentucky, TrueChoice in Ohio, Pro Parts West in southern California, and Performance Shock Inc. in northern California.

On the other hand, Bilstein dampers can be rebuilt by just about any experienced shop with access to the parts, which are easy to buy - you could even service them yourself if you have the tools and the know-how. A lot of circle track racing shops do Bilstein work. This is a double-edged sword; you need to be selective about who works on your dampers to make sure they understand and deliver what you need.

 

Typical Service interval of most coil overs on a street car is 2 years. but if your racing it should be done once a season. rally cars usually service every event. when we do a typical rebuild it involves new seals New fluid and a full inspection. occasionally if a shock is bottomed out, or otherwise damaged you'll need to replace a part. more info can be found here,

http://tamparally.com/componen...id,30/