oops,, I just remembered,,, you maybe asked wich tranny you have.. cause they make the seals in about 5 different sizes... mine has the C52 trans.. so I had to get a C52 tranny seal for the side.. each side (driver and passenger) has a different sized axle and therefore a diffrent size seal. The passenger side If I remember right) has a larger diamete axle, hnce the tranny axle flange seal is larger around... YOu must know what model transmission you have... I either get my stuff from Carquest or Kragen auto (
www.partsamerica.com ). If they don't have it in stock then it takes a few days to get the seal. But they usuallyhave the half axles in stock. Autozone didn't seem to carry the stuff when I needed it, but I do business there too.
You might need new cotter pins, maybe some new high temp bearing grease, just in case you decide you need to pack something... decent prybar(s) to pop the axle out (even though you said clip is missing,, you might end up need a pry bar, now or in the future), the axle nut, or axle socket to get the axle nut (not sure what the size is on your front axle) off... a breaker bar.. I also use an air gun... (I can't do my work with it,, it save my ass all the time...)
a brake bleed kit also come in handy... I always try to keep a quart of brake fluid on hand.. also a good torque wrench..
You wil need a good selection of sockets and also some deep sockets...