Gear makes clacking sound while downshift.

[coleb423]

I sometimes get a clacking sound downshifting into second. I am never at a high rpm when I downshift. It does not happen all of the time but pretty often. Any idea of what it could be?

 

[sprtfx]

Same here, not when down shift per say, just as it started moving from dead stop from gear 1st to 2nd