Something I have yet to fix on my '98 STS:

A fluxuating speedometer, fairly common on many 98 STS's (from what I've seen), is not that easy of a fix- at least, not as easy as replacing the VSS, as I found out. I have yet to complete this repair:

Check it out:

http://www.northstarperformance.com/si/sidoc0429001

AJ or Ewill3rd- can the case extension be swapped in place from a 95-96 transmission? I haven't yet priced these parts but I'm assuming they won't be cheap. If they fit from the older transmissions, It'll be a cheap fix for me and it will make some scrap aluminum transmissions worth more than $0.60/per lb.