just about any old Mopar that has it's originial arms on it, and is a bit rusty can be a bear to remove, replace all the cams, they're cheap and still available, don't waste time wrenching crap, the shafts are hardened, so a sawzall won't help, a small die grinding wheel, the 1/16 or 1/8" thick disc style, about 2" in diameter works best cutting the shafts right at the bushing ends, then just knock it out....