rear springs and shock absorbers

[jpliddy]

hi all
i have the nivomat self living dampers on my 945 tic auto 1995 , one has started leaking ,so at a cost of £600 each here in UK i have bit the bullett and changed
over to a standard set up which is heavy duty springs and weaker shock absorbers , i got both pairs for £244. so a hell of a lot cheaper , but the job was bit of a task as ive never done them ,the top fixing for the springs is very rusted and the rubber mount which fits inside the springs need replacing as they have a flat steel washer built into the rubber mount which is badly rusted so ive orders replacements , at a cost of £53 , i believe this is the same set up on the 700 series cars ,so has any one had experience of doing this change over .in USA?