This is 3spd sideways with the big Bull gear in back? One of the bottom bolts holding the cover side on to the main case casting will let oil leak out. One up higher is the level bolt, fill till it comes out the bolt. I'm not real sure on which one for the level, it is not that much really. To put in, the two-piece tin cover nearer center on outside comes loose with a few bolts and is quite open there to see in and fill. There is no seals on that cover around any shaft or axle coming out of it. There IS a gasket on the cover, think just the lower half?? There is a grease zerk at top of the pinion shaft, where the bigger sprocket is mounted for the bushing in that area. The big gear and little idlers relie on "splash" from oil brought up on the big bull gear. Oil the chain from trans to sprockets also. the trans has a drain and side level plug, but really is best to just have 8 ounces of lube in it, which puts it a little below the opening on the side of trans. These trans have no seals on shaft outlets, just oil slingers and will leak out the oil if brought up to the plug opening. Some think 1/2 STP and 90 gear oil is a better lube, less grinding action if shifting.
Forgot to say on axle ends at wheels there is a grease fitting for the bushings there and that is also the only oil seal on those. Good stiff black grease works best at keeping the dirt somewhat out of the axles.
Edited by glgrumpy, November 03, 2015 - 07:59 AM.