Slight grinding noise when in drive at a stop

Hi everyone.

Hoping someone can help with my problem/issue.

A few weeks ago our axle broke on one side and we had it replaced. One day I was at a red light for a few minutes and my car stalled and died. Kind of like when you drive manual and it stalls. I was able to re-start it but it was a bit weird. Since then, it's either sputtered without dying or has this slight grinding noise when we're at a stop light. Could this have something to do with the repair?

Any suggestions/help is appreciated.

Thanks!