Just got my front 2 drive shafts replaced with some from the yard. Did an engine oil change as well. 15w50 Amsoil. Car drove fine for 3 days. After that, the car started shuddering mostly at low speeds in 2nd gear when I throttle it(between mid to full). This takes place between 4000rpm to 6000rpm. Swapped out the oil due to very loud LMAs ticking. Now it's on 10w30. Shudder is still there. Could the oil have damaged something or the replaced shafts are bad?

Appreciate any advise or help. Thanks.

 

I would start out by checking over my work and inspecting the axles. Check lug nuts first.

 

I had an axle go out on my RSX. It would shudder from 45-55, most noticeable on slow acceleration no matter what gear.

The axles you got might be messed up, seeing as they DID come from a junk yard you really don't know what shape they were in before they got there, not to mention whats happened to them since.

 

sounds like an axle problem.

 

Looks like a trip back to the mech.