1992 bigbear
 

middle gear case fluid type and how much it takes on 1992 yamaha big bear 4x4

Are you talking the transfer case where the rear drive shaft and front drive shaft come out?

Yea the transfer case some call it middle gear box

Think its 80-90 like the differentials. I can't find it on the service manual. I will look again

In the service manual it has the engine oil and the transfer gear oil in the same procedure. So maybe it takes engine oil. I know where the output gear is just in front of the transfer case that is oiled by the oil pump with the motor oil. Hope someone else chimes in and gives the definite answer because I have to pull one out to replace the bearings next weekend.

my 94 uses the engine oil and has a drain plug lower rear on the bottom of the middle gear hsg on the bottom of a cone shaped hsg...the manual says if draining both it uses 3 qts if not like 2.8 qts...

noticed it after I was done....the cone shaped hsg is directly under the output shaft boot to the rear axle