S80 AWD V8-4.4L VIN 85 B8444S (2008)
If the squeaking noise is coming from the anti-roll bar bushings, then remove the anti-roll bar according to VIDA and lubricate the bushing and clamp
with silicone grease (PN 1161687) according to photo 1 in the attachment.
VOLVO STANDARD TIMES GUIDE (VSTG) INFO
Attachment
RTJ - Instructions