Hey guys, I had the Halo Lifts Mountain Package installed on my Tremor few weeks ago. I'm loving the ride and look! The truck feels less floaty and more planted to the road. I also had the truck on some forestry roads and it handled perfectly. You can feel the quality of the kit.
I kept the truck at stock height in the rear and lifted it 1.5" in the front (You could go as high as 2” above factory Tremor height). This allowed me to fit 285/70/18 with a +1 offset, with no rubbing. With the proper offset, you could run a bigger tire. I'll provide some insight about the install and the minor differences we found between the standard F150 factory suspension and that of the Tremor. I will likely repeat some things Kevin and others have already touched on.
Firstly, the Tremor shocks and struts provide about 1" of lift in comparison to the standard F150 so, in my case, we adjusted the Halo coil overs to 2.5" of lift which only really gave me about 1.5" on the Tremor. Kevin also installed the SPC UCAs and Caster/Camber kit, both of which help with the geometry of the front suspension.
In the rear, the Halo shock is right about 24" with the truck on the ground and 29" at full droop. You can get a 2.5" block from Halo, which is .25" taller than the factory Tremor leaf blocks. The Tremor bump stops are about .5", or less, taller than the standard.
As far as Halo Lifts goes, I have been very impressed with and grateful for the customer service. I spent 6 months or so looking for a "compatible" setup for the Tremor. This kit fits the bill. Kevin and his wife are not close friends of mine so, I'm giving you an unbiased opinion based on my experience. We knew each other from a local F150 group and I liked the idea of spending my money with a smaller but reputable outfit. They provide a quality product that performs as well as or better than the big names we've all heard of. Like others have mentioned on this thread, they are closely affiliated with Elka, which should tell you all you need to know. I was at their shop today and they have a bunch of Mountain Packages ready to ship.