My understanding is the offset design optimizes the angle of the upper ball joint while the standard spacers, especially over 2", may create too much of an angle (reducing the life of the ball joint) and could cause the upper control arm to contact the coil spring in certain situations.And to piggy back on Glovers question, what does the offset design actually do for you?
It doesn’t have anything to do with ball joint angle.My understanding is the offset design optimizes the angle of the upper ball joint while the standard spacers, especially over 2", may create too much of an angle (reducing the life of the ball joint) and could cause the upper control arm to contact the coil spring in certain situations.
Being able to rock 35s will all depend on your wheel offset, plenty of people are able to rock 35s with a level. Even the raptor take offs which are close to 35s fit on a stock non leveled truck, it really all comes down to what wheels and offset you are deciding to go with. The 4 inch lift might be overkill if you're looking at a non aggressive offset but might be necessary for an aggressive offset. At that point you will be absolutely killing your powerboost MPG though because the higher lift paired with bigger heavier tires might not allow the truck to go into electric mode as often. Just an FYI you could also rock a 15-20 coil over kit like many members here were doing before the 21-22 kits came out and those give slightly more lift than advertised for that year. They also bolt up without any issue.Maybe this is a good place to ask this question. I started a thread but didn’t get much response. I just got a ‘21 xlt with the powerboost engine and I am debating between a 2” bds with fox shocks level or just going with a 4” bds coil over. I want to do 35”x12” r18s and I am thinking either 4.11 or 4.56 gears. My goal is to eliminate the rake, make it more capable off road without making it uncomfortable on road. The talk about the powerboost not getting the full 2” on the fox setups has me thinking more towards the 4” but previously I had been leaning towards the 2”. I was also considering the cognito 2.5” system with the king shocks. I was wondering if anyone had any input regarding the pros and cons of these routes. I understand there will be compromises with any of the routes and I am hoping to better my understanding of the effects of these options. Thanks!
All else aside, does the difference between a 2” and 4” lift affect the mpg dramatically?Being able to rock 35s will all depend on your wheel offset, plenty of people are able to rock 35s with a level. Even the raptor take offs which are close to 35s fit on a stock non leveled truck, it really all comes down to what wheels and offset you are deciding to go with. The 4 inch lift might be overkill if you're looking at a non aggressive offset but might be necessary for an aggressive offset. At that point you will be absolutely killing your powerboost MPG though because the higher lift paired with bigger heavier tires might not allow the truck to go into electric mode as often. Just an FYI you could also rock a 15-20 coil over kit like many members here were doing before the 21-22 kits came out and those give slightly more lift than advertised for that year. They also bolt up without any issue.
I don't have a power boost so I cant tell you from first hand experience but I'm sure it will. With the bad aerodynamics of the 4inch lift and heavier wheels and tires the electric mode wont kick on as often and will result in an MPG hit. How much would be a better question for the power boost guys on this forum. I would honestly recommend a level and 35s, that setup is perfection in my opinion, its the perfect balance of an aggressive look while retaining somewhat of a decent MPG and not having to go overboard on modding your truck. A 4 inch lift doesn't give you any ground clearance anyways it only lifts the body, the axle with 35s with a level would be at the same location as the axle on 35s with a 4inch lift. That's a pricey setup if its doable without a lift but at the end of the day it's your decision and your money. I was able to get some Raptor take offs for $1,400, Bilstein 5100s front and rear $400, and install and align $350. So for around 2k I got a leveled truck that's super capable off-road, leveled with great ride, and an aggressive look with only losing about 2-3 MPGs (not calibrated for bigger wheels/tires and non power boost).All else aside, does the difference between a 2” and 4” lift affect the mpg dramatically?
I do like that option! Regardless of what route o go I am getting the UCAs for sure. I’ve liked what I have heard about the fox’s comfort but I haven’t heard much about the king setup. I know they are supposed to be awesome off road but are they going to be comfortable on road as well? I don’t think my wife would be super happy if it ended up being a really firm ride hahahaCognito with kings or Elka’s would be awesome, that kit also includes upper control arms which would be very nice if planning on using it hard in the dirt. The cognito would be a good balance between quality and lift. Seems like a good option for you needs. But if not planning to use it hard in the dirt go with a quality strut like the bilstiens. Or go all out for the bling bling!