I ran those spacers for around 3 years on my Camper, went through Scenic rim park to the top campsite and did most of NQ with them on. A dozen trips to Coffs area inc some track work round the back of Woolgoolga. Didn't have any issues.
And it meant when i sold my camper it didn't limit my market. Cause the bloke that bought it drove a Prado
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Dave