You need a large enough spacer to move the wheel away so the caliper doesnt hit the spokes. Just look at FMUs build. Theres a conversion kit with all the plug ins, and the struts to properlly remove the rear air ride w/o triggering an error message or causing any other issues.

FMU used 17x9 wheels, not 16.

FMU had to use wheels spacers because they chose wheels with an improper offset and that's why they had caliper clearance issues.

The FMU rear lift spacers for the suspension will not accommodate the mounting hardware for a coil spring. They are designed for the air bag spring.

I've searched but can't find the conversion kit that kills the error message. Any links?

So you were actually able to fit 16" wheels with a spacer? What offset and width were they? Could you provide a part number? I really want 16" wheels. Thanks.

I would also like to know the info on the spacers you used.

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FWIW I put Ranger Rover wheels and tires on mine a few years back and it gained an extra inch of height and looked good too. You can put GY MTRs on that rim for a really nice aggressive setup. I sold the X5 a few years back, and I've since moved onto a 100 series Land Cruiser where I've tried several tires and have settled on the GY Duratrac for an excellent all around tire - off roading in the rocks, light mud, snow, ice, and on the pavement all excellent. Here's my X5 back in 06 with the RR wheels.

http://www.xoutpost.com/attachments/...s-file0053.jpg
http://www.xoutpost.com/attachments/...s-dscn1392.jpg

The flip kit for my dana 300 retrofit finally showed up! Before and after pics attatched showing before and after. . Should be getting my doubler strong box and adapter plate to bolt all of this on to the zf 6 speed manual trans in the next week or so. Finally some low gearing!

Ohhh yeah! I SO wanna steal your car ;)

If your lookin for extra height with enhanced off road ability go for the oversized terra grapplers or toyo OC AT2 tires. Brptrailrider, i used FMUs front spacers but ended up machining my own for the rear. Il link to another forum that has all the info. Will no longer be offering advice here, you can PM for email if you want me to machine the spacers. The conversion kit is from suncore

Driveshaft adapters for front and rear differentials. Getting closer to the goal

here they are