yes behind the front axle where the 4x4 drive shaft goes into the axle.Are you referring to front differential pivot pin.... My Massey Ferguson GC 1715 has no grease fitting on front differential pivot pin, BUT its lubed from internally with oil from front diff according to MF.... May have same situation with your beast....
thanks , I bought this in 04 the dealer thought it was a 02 or newer.My 2001 built 4110 has 2 grease zerks on the front axle pivot. On the pivot in front of the axle the zerk is on the right side sticking out parallel to the ground and on the rear portion of the pivot behind the axle the zerk is on the left side, parallel to the ground. You use the large bolt w/large locking nut on the front portion of the pivot to adjust the gap between the pivot & axle housing which I think was around .010" - .012". Right & left are as sitting in the seat by the way.