i removed my rear tire to install a new chrome belt cover and a chrome pulley cover. my question is does it particually matter wich way the axle is put in. it is like a big bolt with a castle nut on the other end. reason i ask is because the way it is now the bolt head is on the exhaust side and i have to drop the exhaust to pull the axle out. if it was the other way i wouldnt have to bother with screwin with the exhaust. also, how do you repack the rear tire axle bearings since i have it off?