Suspension: C70 front suspension

[burgess]

I’m about to replace the front suspension on my 2001 C70 Cabrio

I’ve a pair of new Sachs shock absorber struts 82 4903 553 058 (oil pressure); which are said to be comparable to the original Volvo Sachs 82 4903 553 021 struts.

Volvo list the springs as OEM 3546644 dynamic spring (brown colour coding), however, most all of the after market vendors list coil springs OEM 3546642 (green colour coding).
I have a pair of Kilen springs 3546644.

The following details from P.P.S.
3546644, wire diameter 13.00mm, spring diameter 143mm, length 473mm
3546642, wire diameter 12.75mm, spring diameter 142mm, length 442mm
The dimensions for the 3546642, indicates less stored energy in the compressed-fitted state, would seem to indicate a softer ride than the more robust 3546644 springs.

Anyone have experience of 3546642 springs on a C70?

[burgess]

I posted this in the wrong section, how do I move it to the correct section?