My girlfriend has a 800 volusa lehman trike. i read all this and it all makes sense but i'm still undecided as to whare the oil level should be ?? Not meaning to hijack the thread but. Her trike is leaking gear oil, i'm sure it is in the holes on front and the back on the rearend, these look like they are there to weld the shorter axle tubes when the axle was shortened for the trike. i cleaned the hole on the back on the left hand side and put some sealer on it that seems to have worked but now the hole in front of the rearend is leaking, could this be because i have too much oil in the rearend, i filled untill oil was comming out of the filler hole?