Just a manual tranny tech question...when you're in too low a gear, why does the tranny make a chugging, ratchety noise? What exactly is going on and what am I hearing?

I have NEVER been able to use the "advice" of the shift light. If I go into 4th gear under 40 MPH the tranny makes this ratchety noise that I've never been able to figure out, under acceleration AND deacceleration.

Thing is, the shift light will come on at around 33MPH.

I ask myself...There's no WAY this tranny did this when it was new, b/c anyone that actually used the asinine shift light would have brought it back to the dealer in a second after hearing that noise!!!

All I DO know is Reline MT90 has been keeping my AX-5 alive!!! I change it every 6 months no matter what!!!