I'd personally steer clear of pre-lkad spacers for lift as it will effect the ride quality. For the front, I would use one of the options that replaces the front struts like Bilstien, Rough Country, Eibach.......
On my truck I have Bilstien 5100 struts in the front set for a 1.4" lift(on my BTS with off road package) and added Zone Off-road UCAs because I got them cheap off Facebook marketplace. The UCAs gave me an additional 1/2" lift in front. This made the truck sit perfectly level, which actually looked nose high at certain angles. I have since added a 1" rear spacer to give a little rake back. Also running 34" tall tires
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