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Concerns: Auto Spring 2” Level Kit

Damn! Just read this whole thread. Though I haven't installed them yet, I purchased the AS 2.5" pucks. I don't take this truck off rode other than the occasional two track. But, I don't want to have any problems down the road. Hmmm
Key point on any Level or Lift is the Axle Shaft / CV Angles resulting from the change.
Ran 2 1/2” Rough Country Leveling “Puck” kit on a 2013 F-150 Super Crew 4 WD. At 160,000 there have been no issues. Put the kit on at about 15,000 miles.
Put a 2” Read Lift “Puck” kit on my ‘23 Tremor at about 800 miles and now have over 7,000 with no issues.
Ride quality in both cases was same as stock.
Just my experience and everyone must make the best choice for their situation and need.
Good luck with your mods!
 
Pay to play is the common phrase used.
 
I recently installed the autospring 2" / stage 3 2.3" tremor specific kit on my 2024 Tremor and here are some of my notes:
  • The install was relatively easy and I followed the method shown on the stage 3 motorsports video
  • I gained at least 2.5" of lift which kind of surprised me. I only have about 0.5" to 0,75" of rake left
  • CV angles don't look great, the outer CV boot DOES contact the strut at full droop
  • The front section of the upper control arm contacts the frame right where the load level sensor bracket mounts to the UCA
  • The upper control arm does contact the spring at full droop
After two trips on some rough ish forestry roads I have noticed a metal on metal clunking when going over washboard type terrain, the clunking can be felt in my steering wheel. I will continue to diagnose this considering my truck only has 2000kms on it.

Overall, I wouldn't recommend this kit unless your truck stays on road.
 
I have 2.5 temor specific AAS level on my 23 tremor.

I have 31000 miles and mostly drive off road.
I have no issues with boots. No metal clunking sounds and no known issues of anything touching at droop or contraction
 
I have 2.5 temor specific AAS level on my 23 tremor.

I have 31000 miles and mostly drive off road.
I have no issues with boots. No metal clunking sounds and no known issues of anything touching at droop or contraction
I’m glad that it’s worked out for you. It’s very weird that the same kit produces such different outcomes for different users. After just a few hundred kilometres with this kit on my vehicle, you can clearly see the witness marks from the upper control arm contacting the spring and also contacting the frame.
IMG_7700.webp

IMG_7699.webp
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I don't know. Sounds like you may have gotten one that isn't tremor specific. Which was to prevent what you are experiencing
 
I don't know. Sounds like you may have gotten one that isn't tremor specific. Which was to prevent what you are experiencing
I got the right kit. I talked to AS on the phone extensively before ordering.
 
So… I just jacked up both front tires and have some new concerns. At full droop, the knuckle hits the spring and the CV boot hits the strut on both sides (see photos). I don’t think I can sleep knowing that these clearance issues exist. I either did not get the 2” kit that I ordered, or I just need to remove the AS kit and look at other options. Just wanted to share my findings.
Got to be something wrong there !!
 
I've been speaking with Kevin @ Auto Spring and I have learned a few things about their leveling kits:
  • I believe that my kit is installed correctly.
  • There is a chance that my suspension might settle after a couple of weeks, but this might just be wishful thinking.
  • My posted clearance issues are amplified because I checked droop with BOTH front tires off the ground. The sway bar limits full droop if you're only lifting one tire off of the ground. This is still unsettling to me as I think about the potential of wearing the CV boots on the struts.
  • There is a 1-1/2" kit available. I'm curious about the clearances at full droop with this kit.
  • The 2.3", 2", and 1.5" kits require the struts to be rotated 180 degrees. The struts do not have to be rotated with the 2.5" kit.
  • The 2.5" kit is the only kit that is side specific (left or right) and they are clearly stamped so they are installed correctly.
  • Kit Dimensions:
    • 1.5" kit (1-1/4" spacer)
    • 2" kit (1-1/2" spacer)
    • 2.3" kit (1-5/8" spacer)
    • 2.5" kit (1-3/4" spacer)
I tried to measure my spacers but this is a little tricky when they are installed on the truck. I came up with 1-9/16" which doesn't match up with any of the dimensions I got from Auto Spring. This means I either have the 2" spacers or the 2.3" spacers. I'd have to remove them to get an accurate measurement, but then I'd need another alignment. Kevin says the kits are all inspected by hand before shipping and therefore, he still believes that I have the 2" spacers.

I had another thought and feel free to correct me if you think I'm wrong:
Ford says that the Tremor has a 1" lift up front (1.5" rear) compared to a typical 4x4 F-150 (and OEM 275/60R20 tires are only 0.2" smaller than Tremor tires). This means that a 2" leveling kit on a Tremor could result in the same suspension geometry as a 3" leveling kit on any other F-150. And in similar fashion, a 2.5" leveling kit on a Tremor would be like a 3.5" leveling kit on a more typical F-150. If this logic is true, I'm wondering if I'd rather have the 1.5" leveling kit on my Tremor (2.5" on a typical F-150) in order to keep angles to a minimum.

I do not share this information or my opinions to disrespect anyone else's. Just hoping to understand more about these trucks. I'm anxious to hear your thoughts.

EDIT: You do NOT have to trim the factory strut studs when installing the AS 1-1/2" kit.
To be fair, the knuckles on the Tremor are different, the geometry change would not be as drastic as you might think.
 
To be fair, the knuckles on the Tremor are different, the geometry change would not be as drastic as you might think.
I really would like to Know Witch one to put on? All of my trucks I did the 2.5 lift. They were great!!
 
So… I just jacked up both front tires and have some new concerns. At full droop, the knuckle hits the spring and the CV boot hits the strut on both sides (see photos). I don’t think I can sleep knowing that these clearance issues exist. I either did not get the 2” kit that I ordered, or I just need to remove the AS kit and look at other options. Just wanted to share my findings.
That's not good ! Your going to have some real wear problems from what, I'm looking at.
 
The puck sits up in the shock tower making it difficult to measure without removing the whole strut assembly.

The instructions Auto Spring provided mentioned that the holes will only line up one direction so I don’t think I could have screwed that up. Also, the spacers did not have any markings that indicated either was meant for the right or left side. I sent Kevin at Auto Spring another email with these photos so we'll see what he says. If these spacers are installed correctly, I have to believe that I was sent the 2.5" spacers instead of the 2" spacers. We'll see what he says and I will report back.
Reviving thread. Can you share me the email address for a contact at auto spring? The email address on their website doesn't work.
 
Just read entire thread…. So many different happenings with these AS kits. Not sure what to think. May go with my initial git feeling and just leave well enough alone.

🛘
 
Key point on any Level or Lift is the Axle Shaft / CV Angles resulting from the change.
Ran 2 1/2” Rough Country Leveling “Puck” kit on a 2013 F-150 Super Crew 4 WD. At 160,000 there have been no issues. Put the kit on at about 15,000 miles.
Put a 2” Read Lift “Puck” kit on my ‘23 Tremor at about 800 miles and now have over 7,000 with no issues.
Ride quality in both cases was same as stock.
Just my experience and everyone must make the best choice for their situation and need.
Good luck with your mods!
Just a follow up on my post. Now have over 40k miles on my ‘23 the Tremor Specific Leveling Kit from ReadyLift. Tires are wearing perfectly and zero issues. Tires are 315/70R 17 KO2’s on Gen 2 Raptor Wheels.
 
Just a follow up on my post. Now have over 40k miles on my ‘23 the Tremor Specific Leveling Kit from ReadyLift. Tires are wearing perfectly and zero issues. Tires are 315/70R 17 KO2’s on Gen 2 Raptor Wheels.
I assume u have the only one that seems available…..w/ uca’s and alignment kit?

🛘
 
I assume u have the only one that seems available…..w/ uca’s and alignment kit?

🛘
Stock UCA’s, and Yes the kit did come with alignment shims. Truck was realigned after install at just under 800 miles. Now has over 40k.
At that time, ReadyLift appeared to be the only vendor with a Tremor Specific kit. Was recommended and installed by my Ford Dealership.
 
I currently run the AS2.5 on mine, yes it has contact at full droop. If you are jumping your truck or hanging one wheel in the air off-roading then you should not be using a puck from anyone, and instead need a significantly higher cost suspension. The puck is simply a spacer. Doesn't matter who's it is they do the same thing. You could also install limit straps also with the puck, just saying. At least for AS, they have included a slight offset to minimize contact with spring and uca. Very, Very slight differences in spacer thickness cause larger changes in height. The spacer height is not a 1:1 ratio due to the position it is located in and moment arm of the control arms come into play. It is possible that truck to truck variation is kicking in. You are also correct that a 2.5 AS kit would be like a 3.5 on a regular truck. Rough country makes a kit that is 3" pucks, RC also makes one that your can change the lock ring on and get 3.5 but that is way on up there for cv angles.

One option you can try is the 1.5 AS Kit to minimize the cv angle concerns ( I have a set for sale). Then remove the 2.25" tapered rear axle block from your tremor and replace with a regular 1.25" flat block (non-tapered) that comes on all the FX4 non-tremor models. Your truck with be level at that point. However, I would strong suggest the installation of air bags like the airlift wireless one kit and bags. Because with the super soft suspension on the tremor if you fully level it, putting a bag of groceries in the rear will cause the rear to squat.

The reason the tremors block is tapered is to keep the correct pinion angle on the drive shaft to minimize vibration. Putting in the FX4 block that is flat is not an issue and is very easy to fix. Plus you can reach out to any of the places for the guys that squat their trucks. They pull those off all the time and throw them in the trash. I grabbed a set from a shop one time cheap.
 

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