1. Can I get replacement bearing, seal and collar at a local autoparts store?
Yes, call Superiour and ask them for the exact part number or set and will be able to get at ANY parts store.
2. Is it a good idea to drive the 1000 mi round trip to Jeep Beach on it? (pretty sure I know the answer to this one)
define "seepage" like a tablespoon a day or like a puddle a day?
tablespoon= ya..sorta. carry some gear oil.
I've got a spare shaft I can throw in, just tight on time. If I can get the parts, I can drop it off down the road, have them press it all together, throw it in, and I'm good to go.
takes like 30min to swap a shaft, toss the old/good one back in and then swap the Superior after changing the bearing/seal
My other thought was to bring it with me hoping one of the vendors or shops down near Daytona would have a bearing/ collar/ seal I could buy.
common parts and easy to install if you have a press. if not here is what I have done with no press
(actually the first part I do with or without a press)
cut a deep notch in the retainer with a cut-off wheel, stick a cold chisel in the cut and whack with a big fuckin hammer, retainer should go "CRACK" and split, tap it off and save.
cut off bearing cage then notch race the same as retainer, chisel, hammer, remove.
Now slide your new shat on correctly and then slide that split retainer on top, this prevents you from damaging anything with the next step ( now you would normally use a press)
Find a long hunk of pipe big enough for the shaft to slide in, slide axle in pipe, secure well and either use a big ass hammer on the pipe to seat the retainer OR use the shaft like a slide hammer to do the same.
I recommend buying a press or making friends with someone who has one. But yes, I have pressed bearings with a big ass pipe