So, I just recently mounted snow tires on my car (or rather, paid someone else to do it), and on my way home I noticed that whenever I take my foot off the gas pedal the car jerks forwards and backwards rather violently. This hasn't ever happened before, literally started the second I left the shop parking lot.
It stops when I disengage the clutch, which leads me to think it may be a symptom of a failing clutch. Also, as the guy was pulling my car into the garage I noticed he was revving the engine pretty high and seemed to be riding a little bit. What's weird though is that my clutch doesn't seem to slip at all during starting/acceleration. I'm not sure when the clutch was last replaced but I believe it was a while ago.
Could this be related to the tires at all, or is this definitely clutch? It's just a little strange that it hasn't happened at all until I switched tires.