Alternative to Nivomat on 98 XC70?
 

I have a 98 XC70 with the Nivomat rear shocks. One is leaking, and so I am looking at alternatives to replace the shocks with. (The chassis code is M for the shocks, for what that is worth)
I have read of Bilstein replacements, is there a bolt in alternative for the Nivomat that does not require a spring change? Are the Bilstein a direct replacement? Can anyone provide a Bilstein part # for the replacement? Thanks in advance.
Trev

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