Shackle kits are ok but can dig in. A set of springs is the best option.....
Couldn't agree more. I've got stuck twice now purely because of the shackles, to steep to go back and they've just dug in the ground! They were a quick cheap solution to a big wheel problem.
I've cut the arches of mine out now, along the top of the indentation above the trim, and am going to weld new ones in. Hopefully that'll give enough space for the wheels. If it doesn't I’m going to get a spring lift kit from Procomp ([url]http://www.explorerprocomp.co.uk/acatalog/SuspensionSystems_Suzuki.html[url]). Seems to be quite good value.
With a decent set of tyres they are brilliant. My 410 had a set of Grizzly Claws and a small shackle lift, 1" at the most, they were small enough not to get in the way. It went almost everywhere it was pointed.
With regard to problems with speedo readings, mine didn't seem to go fast enough to have problems with cameras and plod!!