Spread axle pin lubrication?

[bartletts]

I'm the new owner of a 2012 Passport 238MLWE. I was looking at the axles and springs and I noticed that there don't seem to be any zerk fittings on the axle spreader or the leaf spring shackles. I presume this is normal... do these things want or require periodic lube or are they some kind of slow wear bushing material that have to be replaced eventually?

[therink]

No zerk fittings likely means Dexter plastic bushings. I just finished replacing the stock plastic bushings and dry pins for Dexter wet bolt kit with EZ Flex equalizer. The kit was around $160 and installation took me a good 10 hrs.
Steve