OK on two wheels out of four?
I will be getting new tires soon, and for reasons I can't go into here, it will involve riding up on blocks so I can take two wheels off, then taking two wheels into the shop, getting the new tires on...
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When I replaced my axles (and added wet bolts) I used cribbing made of 4x4 fence posts cut in 12" & 18" pieces. I used the landing gear (with the trailer not on the truck) to do as much of the work as possible. Let the front end down as far as possible; put cribs behind the rear spring hangers. Raise the front end; crib just behind the landing gear. Use a hydraulic to get the last couple of inches on the front to get the wheels just touching.
By the way, if you have a compressor at home (all RVers should) you can jack it to where it is still touching, then air-down to about 20 or 25 psi and pull the wheel off without breaking the bead. Reinstall at 25 then air-up to 65 or 80 depending on the trailer.
We used to air-down a stock trailer to get it into a shed. It was about an inch and a half too tall at full pressure. Pumping tires up and down was easier than rebuilding a door.
By the way, if you have a compressor at home (all RVers should) you can jack it to where it is still touching, then air-down to about 20 or 25 psi and pull the wheel off without breaking the bead. Reinstall at 25 then air-up to 65 or 80 depending on the trailer.
We used to air-down a stock trailer to get it into a shed. It was about an inch and a half too tall at full pressure. Pumping tires up and down was easier than rebuilding a door.
