WHEEL TRANSMISSION CASE FOR TRACTOR

PURPOSE:To simplify structure and enable the common use of each part in both high and low floor forms so as to attain cost reduction by forming such structure as to enable the selection of vehicle height by the lateral transfer of spacer cases in relation to a transmission case, an axle housing, conductive mechanism, and the like. CONSTITUTION:An axle housing 7 with an axle 6 rotatably mounted therein is provided on either side of a transmission case 3 with a differential gear 1 and a differential shaft 2 mounted therein, and the axle 6 is rotated by the conduction of the differential gear 1. In order to obtain the high floor form A or low floor form B of vehicle height by the transmission case 3, lateral spacer cases 10 and axle housing 7, only the lateral spacers 10 are to be transferred while leaving the axle housing 7 in its position. Since the lateral spacers 10 are in symmetric form, the spacer cases 10 are changed in the vertically symmetric position according to the state of being fitted into the high floor position A or the low floor position B. In association with this, the phase of the axle housing 7 is also changed vertically so as to change the vehicle height with simple structure.