I put the second set in and they are perfect. Very easy to install and configure. I went to a 2.5" setup and now the front is higher than the back so I'm going to put in a set of blocks for the back to actually align them. This set was mounted on a 2005 Tacoma PreRunner 4.0L crew cab, 20X9 zero offset wheels and 285/55/20 A/T tires with virtually no friction issues and feels like a tiring ride. I would still go for the 5100.