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Update:
Alright I had the front end aligned which fixed the popping as one of the cam bolts was loose. Now I still am having this issue with it dragging on dips, but I am starting to think it's something with the steering tie rod angles because I noticed when the truck shop lifted the front wheels off the ground, the front end toe was insanely toed in. Like with the front end hanging on the lift, I could spot it a mile away that the toe was out of alignment. This makes me think when the suspension articulates, that toe goes in and out so much that it causes the tires to drag.
Has anyone had this issue with lifts?
I'm almost thinking that because the kit didn't drop down the steering when the knuckles dropped, that there is an issue with the tie rod angles.
Can you post a pic of the front end? The steering should be fine, it's not uncommon.
I'll post a picture today or tomorrow.
Originally Posted by srg963
Did you disable the traction control (hold button down 5 seconds) and still able to duplicate?
RR tracks plus a dip in the road causes a tire squeal with mine on, no squeal without.
No I haven't tried that, but I'll give it a shot today. Usually the traction control light would come on if it engages, but I feel the drag on even the smallest of dips. It's not as noticeable as the larger dips though.
Here is a picture of my front end. I took it to 4wheelparts who had another 2015 f150 with a procomp lift being installed, and the tie rod locations on the procomp knuckle are much higher than my Rancho knuckle. Further evidence is that there is little thread sticking out of the tie-rod end.
I was talking to one of their guys who says the geometry isn't right because as it's on the alignment rack, he can change the toe significantly just by hanging or pushing up on the front bumper.
What do ya'll think?
Rancho 6" 2015 F150
SRG963- I tried the traction control, and that didn't change a thing.
I'm no expert but I run a 4.5 inch skyjacker lift on my 2013 150 and had a few alignment issues with my front end and with the help of a few guys on the raptor forums I was able to dial the front end as good as oem, if not better. No more bumpsteer and better tracking drivability. I provided the alignment specs to the tech and that was it. I haven't noticed any odd tire wear.
camber LF and RF -0.3
caster LF 4.2 RF 4.8
total toe 0.20 to 0.30
Who did the install?
I'm currently still in the progress of testing but I have a new pair of knuckles now. Watch out for your tires though!
A shop on I45 south. I did a little more research and found that rancho 6inch lift requires to change factory strut spacers to their part # RS866520. I will be taking it in today to 4wheel parts shop. They will check the whole system for $100.
07-11-2016, 04:32 PM
