drive shaft

I've just spent $4,000 getting these items replaced at a local dealer (I'm at 80k so outside of warranty) after complaining for months to dealers about the vibration in my CX9. Dealer was helpful but after Mazda USA refuses to acknowledge or address known issues with tranfer cases, drive shafts...

I'm thinking I'm doing something wrong in my install of a CV joint on the passenger side of a 2003 Protege5. Basically I cant get the CV joint to compress the snap ring on the spline of the intermediate shaft. The snap ring is the old snap ring. I've tried using a hammer and ended up damaging...