EDIT: My final setup included 600 lb / in coils, 265/70 R17 Yoko G015s, and OEM 17" wheels from a 2016 4runner which I had blacked out. I am VERY happy with it, drives and rides as well as it did before, just a little bit slower thanks to all the added weight, and just ~2 mpg worse so far.
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ORIGINAL POST:
I researched ALL DAY about the lift options for my 4Runner, and think I have settled on the ToyTec Boss package. I discoverd picking the right wheels, tires, springs and shocks is a juggling act. I've already ordered a complete kit from Shrockworks including sliders (w-dimpled tread plates), skid plates, plate bumpers (front and rear w-tire mount & jerry can), so it was time to nail everything else down. I wanted the best compromise of off road capability and on road driveability. This is what I think I am going to order tomorrow:
Toytec Boss Suspension Systems with these options:
- 650 lb / in coils
- Toytec Superflex coils
- Toytect Boss 9602RC shocks
- no body lift and OEM control arms
I was borderline on the 650 vs 600 lb / in spring, since I will be adding about 200 lbs to the front (Shrockworks armor minus what I removed). I am concerned the 650s would make for a harsh ride, but I am hoping that my chioce on tires will provide some relief with the larger-than-OEM sidewalls. Also, the higher spring rate should mean I will have more flexibiltiy in the height adjustment, since the front will compress down less with the 650 springs at the top setting. That said, I hope a 2" lift setting in the front will be enough to maintain a level footing when it is loaded with 2 adults, 2 kids, ~200 lbs of removable gear in the back (and the aforementioned Shrockworks armor).
About the chioce for the Superflex coils. I hope thay compress down with the added armor, full Jerry can & spare (but unloaded otherwise) such that I get a 3" total lift in the back. I like that they are spec'd to compress only 1/4" after the first 200 lbs to 400 lbs added weight. I will say I am concerned about how much they may settle over time, but I do not want to risk ending up with a > 3" lift in the back due to a desire to keep the front lift between 2-3", to maintain level footing, and to avoid needing to replace a bunch of other items a > 3" lift requires.
Yokohama Geolander G015 285/70R17s (45 lbs) on Ultra Crusher 17x8" (25 lbs) alloys. This I spent probably 30 hrs investigating my options and learning what variables there are. Larger wheel = more overall weight all other things being equal, which = slower accelleration, breaking, and fuel economy. More sidewall = more cushion but less responsiveness. More width = more off and on road traction, but worse accelleration, fuel economy, hydroplaning, potential for rubbing. I targeted tires that were not heavy to start (for on road driveability; accel & fuel economy), designed for offroad use, good in winter weather. I then looked at options with ~32" diameter and width slightly > than OEM. I don't think I have to worry about hydroplaning with all the extra weight I am adding... Anyways, I settled on the Yokohama Geolander G015 285/70R17s (45 lbs) on 17x8" (25 lbs) alloys. +2.1" diameter, +0.5" tread width, +0.3" sidewall, +430lb load rating over OEM, but the combo does add ~12 lbs. Also, the wheels have a 10mm offset (vs 15 mm for the OEM), so the outer edge of the tire will extend out 0.6" further than OEM, which is fine since the SR5 I have came with wheel flares that should still encompass outer edge. I am hoping that, with the lift and modest increase in the diameter, rubbing will not be a big problem. We shall see...
