mhd16
Junior Member
I have an 09 2500 gasser and it has been giving me trouble. When I am driving between 30-40 mph at a constant speed, and floor it, it will start shaking once it downshifts and then smooth out after making a weird shift. It doesn't do it when I floor it at any other speed or from a dead stop. I have checked u joints and driveshaft and everything is solid on it. Earlier before this started I had my right rear wheel lock up on me for 10ft on a gravel road and then never had an issue after that. I do not know if this is related or not. What could cause this issue?