I have a 1999 Scrambler 400 2 stroke 4x4 and the transmission started whining the other day. I stopped and found the transmission dipstick and it was low. So, I added more fluid hoping the whining would go away. No luck. Still is whining. Any ideas on how to fix this or is it a complete rebuild of the tranny?

 

was it low enough to not lube the bearings. that could be the winning you here. just a guess.

 

Is that an easy one to replace?