Fox coilivers rubbing?

[SgtSlaughter]

Just installed FOX 883-06-166 coilovers and drove around the block with them. I noticed the CV axle is rubbing a good amount on the bottom of the coilover. Anyone else used these and had this issue? What might remedy this?

2022 Rebet DT with an ecodiesel, Fox coilovers set at factory spring height, Fabtech UCA with uniballs and energy polyurethane sway bar bushings on current setup.

 

[boogielander]

have you done alignment?

 

[H2OMAN]

have you done alignment?

Yep. Gotta get an alignment after install.

 

[boogielander]

Yep. Gotta get an alignment after install.

guy said he did but the numbers don't look right... see my fox 2.5 thread.

 

[Vulpes]

Just installed FOX 883-06-166 coilovers and drove around the block with them. I noticed the CV axle is rubbing a good amount on the bottom of the coilover. Anyone else used these and had this issue? What might remedy this?

2022 Rebet DT with an ecodiesel, Fox coilovers set at factory spring height, Fabtech UCA with uniballs and energy polyurethane sway bar bushings on current setup.

This happened to my truck as well... but it was with King 2.5 coilovers from Carli. Spoke with Carli and CJC about a solution and I ended up removing a fair bit of material from both lower spring seats. I have had mine aligned as well (several times), with the last time through a shop that specializes in off road vehicle builds, so they understoof what I was after and how the truck is used.

Assuming it is the lower spring seats that are rubbing on on the axles, removing some material might be the way to go. Of course, you should talk with FOX first about a mutually acceptable solution.

 

[SgtSlaughter]

Well a little update, got the alignment done and they still rub ever so slightly but now my caster is all outta whack. -1.1 driver and -1.7 passenger. Going to try another shop this week but kinda iffy if they'll be able to get it right. Thing turns like a boat.

 

[boogielander]

Well a little update, got the alignment done and they still rub ever so slightly but now my caster is all outta whack. -1.1 driver and -1.7 passenger. Going to try another shop this week but kinda iffy if they'll be able to get it right. Thing turns like a boat.

that is not right at all. talk to fox and see what they recommend.

 

[Vulpes]

Well a little update, got the alignment done and they still rub ever so slightly but now my caster is all outta whack. -1.1 driver and -1.7 passenger. Going to try another shop this week but kinda iffy if they'll be able to get it right. Thing turns like a boat.

• I agree with Booogielander, call FOX and talk to them about this.
• Not sure if you bought a suspension "package" that included the Fabtech UCAs, but if you did buy a suspension "package" from a shop or such, call them too.
• It could be that the Fabtech UCAs may not have enough caster baked into them.
• Does the steering wheel return to center at all after a turn?
• Check the tabs that are welded to the frame that are used to adjust the alignment, sometimes they can bend, or even break. I've heard of this on other truck brands.

 

[SgtSlaughter]

I love talked to both manufacturers and they more or less gave me the blow off answer of "we've never has this issue before."

Fabtech did say the arms should return to factory specs with 2.5's but won't give me any other info regarding the geometry on them. The arms are advertised as having additional caster but obviously there's an issue.

 

[Vulpes]

Here is a picture of what happened with my lower shock mounts. It took me several rounds of filing to get enough material removed. Might be time to buy an air file...

 

[Nukldragger]

Fabtech may be a large part of your problem. Without splashing measurements, it sounds like the caster built into the uppers is off....your comment about the truck turning like a boat leans that way. I worked on their short course race team for about 2.5 years, and all I will say is I was given a long arm kit for my 2500 and it went into the recycle bin without ever getting installed. If you were one of the unfortunate souls that put a 4.0 Dirt Logic system on your 2500.........you may have loose molars and back problems by now.

I'm a big proponent of niche manufacturers for suspension components (Thuren, Carli, Dirt King, etc). Spend your money with someone who's taken their stuff out and flogged it, refined it, and flogged it some more to make sure it's right. Can't go wrong with Fox or King shocks (I've run both on street and race vehicles), but stay away from the big box kit manufacturers (RC, Fabtech, Trailmaster, Readylift, Rancho, etc.), their kits are manufactured primarily to increase ride height. Anything with drop brackets should be a hard pass unless you're going for the mall crawler roller skate look.

 

[H2OMAN]

Fabtech may be a large part of your problem. Without splashing measurements, it sounds like the caster built into the uppers is off....your comment about the truck turning like a boat leans that way. I worked on their short course race team for about 2.5 years, and all I will say is I was given a long arm kit for my 2500 and it went into the recycle bin without ever getting installed. If you were one of the unfortunate souls that put a 4.0 Dirt Logic system on your 2500.........you may have loose molars and back problems by now.

I'm a big proponent of niche manufacturers for suspension components (Thuren, Carli, Dirt King, etc). Spend your money with someone who's taken their stuff out and flogged it, refined it, and flogged it some more to make sure it's right. Can't go wrong with Fox or King shocks (I've run both on street and race vehicles), but stay away from the big box kit manufacturers (RC, Fabtech, Trailmaster, Readylift, Rancho, etc.), their kits are manufactured primarily to increase ride height. Anything with drop brackets should be a hard pass unless you're going for the mall crawler roller skate look.

You need to preach this from the mountain tops. And this should be a sticky.

 

[Vulpes]

Fabtech may be a large part of your problem. Without splashing measurements, it sounds like the caster built into the uppers is off....your comment about the truck turning like a boat leans that way. I worked on their short course race team for about 2.5 years, and all I will say is I was given a long arm kit for my 2500 and it went into the recycle bin without ever getting installed. If you were one of the unfortunate souls that put a 4.0 Dirt Logic system on your 2500.........you may have loose molars and back problems by now.

I'm a big proponent of niche manufacturers for suspension components (Thuren, Carli, Dirt King, etc). Spend your money with someone who's taken their stuff out and flogged it, refined it, and flogged it some more to make sure it's right. Can't go wrong with Fox or King shocks (I've run both on street and race vehicles), but stay away from the big box kit manufacturers (RC, Fabtech, Trailmaster, Readylift, Rancho, etc.), their kits are manufactured primarily to increase ride height. Anything with drop brackets should be a hard pass unless you're going for the mall crawler roller skate look.

The part about molars and back problems, gave me a good chuckle.

 

[boogielander]

Here is a picture of what happened with my lower shock mounts. It took me several rounds of filing to get enough material removed. Might be time to buy an air file...

View attachment 197911

definitely looks like fabtech is the issue.
to be fair, i've never ever heard of fabtech before until you brought it up and I'm in the industry lol

RIP to the money spent on that... I'd get a set of Carli or Thuren, if you want to fix this issue correctly

 

[boogielander]

Fabtech may be a large part of your problem. Without splashing measurements, it sounds like the caster built into the uppers is off....your comment about the truck turning like a boat leans that way. I worked on their short course race team for about 2.5 years, and all I will say is I was given a long arm kit for my 2500 and it went into the recycle bin without ever getting installed. If you were one of the unfortunate souls that put a 4.0 Dirt Logic system on your 2500.........you may have loose molars and back problems by now.

I'm a big proponent of niche manufacturers for suspension components (Thuren, Carli, Dirt King, etc). Spend your money with someone who's taken their stuff out and flogged it, refined it, and flogged it some more to make sure it's right. Can't go wrong with Fox or King shocks (I've run both on street and race vehicles), but stay away from the big box kit manufacturers (RC, Fabtech, Trailmaster, Readylift, Rancho, etc.), their kits are manufactured primarily to increase ride height. Anything with drop brackets should be a hard pass unless you're going for the mall crawler roller skate look.

you need to make this into a banner and put it on top of the forum and the suspension subforum. too many people willingly and happily part their money with those big box kit makers and call it as good as it gets without actual seat time in legit stuff.