Is this a Dana 44 flanged axle ? If it is, did you back off the brake shoes ? You need to heat an beat it. Get good an hot around the lug's. Get p-oil in the studs,and around the axle hub that fits thru the drum, it'll be very tight,bout like its made on there. Or if it's the tapered hub/axle like on a d-27, rear, best to pull the whole axle shaft assembly out w/backing plate. All 1 piece, then put in a press. Or stand it up on end, hub up, an soak it w/ good p-oil for a few day's, then press it out.Jeff