Are differential drop spacers required on 07-19 Tundra suspension systems? Adrian Aldama March 16, 2020 17:34 Updated No, front differential drop spacers are not required for ICON suspension systems Related articles Are aftermarket upper control arms required on the 2007 - 2019 Tundra systems? How much lift over stock do the ICON 2007 - 2019 Toyota Tundra coilovers provide out of the box? I’m attempting to grease the ICON Delta Joint UCA’s but the joint is not taking grease? What is the nitrogen charge pressure on 2007 - 2019 Toyota Tundra coilovers? Do ICON 07+ Toyota Tundra coilovers require a sway bar relocation kit?