The driveshafts of B4's are 30mm longer. However, there is a decent chance that the joints themselves are the same. Tony On Mon, Apr 2, 2012 at 11:35 AM, Tom Leppke-Hennig <printhead at usinternet.com > wrote: Found a nearly complete B4 quattro in the boneyard, wondering if some of it will fit my son's 88 90Q: - front and rear doors; - front driveshafts; Thanks;