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Seeing as it looks like I cant sell my camper, I'm going to rip out the greasable leaf spring set up and replace it with what is in the rear of our Patrols.
Good thing is I can source most parts from my local 4x4 shop as all components are thrown out when big lifts are fitted.
Not sure on coils yet need to measure a stock set. After that I'll put a canopy on the tub.
Open to any input or ideas
04 ST 3lt auto, not enough Mods to keep me happy, but getting there
Are you attempting to get rid of the axle? Why a patrol 5 link setup
I am with Ben-e here. WHY?! You want to go from very basic easily maintainable setup to something that has 5 links, 10 bushes and a pair of coils. Then there is the fabrication of all the mounts which geometry will need to be adhered too. Then if towing off-road the lower arms become very vulnerable as it's being dragged around behind you everywhere. I know you know people but it's still a big undertaking for a trailer. Also all this needs to be able to fit under that tub.
I would go along the lines of something like BenK has suggested. Use a frame style trailer suspension with air bags. Even at that setup there is probably less fabrication and maintainable parts than the 5 link.
TD, if it was my money I would probably stick with the axle and leaf suspension, but just go to the trouble of making sure it was properly sprung, and that the shocks suited the setup. A well set-up solid axle and leaves is pretty bullet proof. Must have good shocks though.
My experience with airbags has been that they provide a fantastic ride, and yes on a camper they can even help you get a good nights level sleep, but for a while I used to keep getting air leaks, and find by morning that the trailer would be flat completely on one side. Eventually got it fixed, but it was a pain for a while.
What is making you think you need to completely replace the suspension anyway? Is the ride too rough?
Between Patrols ATM. Had a beaut GU with 6.5 Chev TD. Next is a GU ute with a 4.5 litre Cummins conversion and a camper on the back.
I dont think swapping will give you any extra clearance( if anything less) newby has a good point about the bushes/maintenance aswell. Id be looking at an independant set up, be it airbags or coils thats the way id be going