Not sure how much relevant this post would be as all the SCs in US came with coil springs. But my soarer is a UZZ31 and has air struts from the factory!
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Ok Folks,
After giving enough thought about replacing my air struts with coilovers, I ended up in favour of coilovers even though my airbags are in pretty good shape for their age. I replaced my wheel bearing recently (posted this on the other thread), so while I was at it I decided it to be the right time to change to coilovers. Everything went smoothly and now I am on coilovers. The following are the steps we followed during their installation:







First, disconnect the battery, open the rubber sleeve and disconnect the air hose for the front struts. For the rear struts disconnect the air hoses in the boot.

 

Front Suspension


Rear Suspension


Enjoy ...

 

VERY NICE!!! What's other aftermarket suspension parts do you have?

 

Not much to be honest when it comes to suspension ... I had a couple of control arms from a racing company. These control arms come with rose bushing not the usual rubber/polyurethane one. This is very good for handling. I changed all the other bushing to specially fabricated ones from Neil Griffiths (Soarer god in Australia).