• Welcome to The Truck Stop! We see you haven't REGISTERED yet.

    Your truck knowledge is missing!
    • Registration is FREE , all we need is your birthday and email. (We don't share ANY data with ANYONE)
    • We have tons of knowledge here for your diesel truck!
    • Post your own topics and reply to existing threads to help others out!
    • NO ADS! The site is fully functional and ad free!
    CLICK HERE TO REGISTER!

    Problems registering? Click here to contact us!

    Already registered, but need a PASSWORD RESET? CLICK HERE TO RESET YOUR PASSWORD!

Lift Kit Or UCA Alignment Specs??

Mad Maxx

See, what had happened was...
Messages
5,995
Reaction score
123
Location
Long Island, NY
Ok, so I got the Zone 6" Lift and the Cognito UCA's. Since the Zone 6" is "Designed" for the OE UCA's, they have their Alignment Specs...BUT...I have Cognito UCA's which Change the Geometry from the OE Setup, so the UCA's have their own set of Alignment Specs.

I got both Specs here in front of me and they are Different.

So the Question is...whose's Specs do I use?

I'm still trying to Chase the Wobble I get in the Front End when Hitting a Bump.

Zone -

Caster: Driver 4* +/- 1*...Passenger 4.75* +/- 1*
Camber: Driver .25*...Passenger .50*
Toe: Driver .10*....Passenger .20*

Cognito UCA -

Caster: 4* to 6* with .8* caster split optimal for average road crown.
Camber: 0 to + .2*, with both sides equal.
Toe: 1/16” to 1/8” toe in, or stock toe setting.
 
Never thought about that issue. I dont think it would cause the wobble but with the differences in specs, anything is possible.
 
I would go 4-4.5 on the caster with a .5 split(I found more than .6 or so caused to much pull on varying road crown), set the camber at 0-0.25 with both sides equal, and total toe in to about .12(1/8") total. The zone spec calls for .3 total which is way to much for a IFS IMO(would cause some serious wobble I would think on bumps just like you describe), and the cognito specs of .06-.12 is a lot better. I used to do ALOT of alignments, and those zone specs would make for a crumby driving truck I would think.
 
Last edited:
I need to have a talk with my alignment guy. My front end is wearing my outer edges pretty hard. I don't think he took into account that the truck is pretty much only driven when I am planning to pull a trailer.

Sent from: Source Unknown
 
I need to have a talk with my alignment guy. My front end is wearing my outer edges pretty hard. I don't think he took into account that the truck is pretty much only driven when I am planning to pull a trailer.

Sent from: Source Unknown

That's gonna be a Camber Issue.
 
Yeah I figure he didnt account for the amount of weight it has weighing the rear down/picking the front up. It has noticeable wear after 5k miles.

Sent from: Source Unknown

On mine, the Middle-Inside of the Tires are Wearing Faster. Noticed that when I was Poking around Under it the other day. Not alot, but looking at the little Ribs in the Tread, you can see it.
 
Ok, dropped the Truck to get Aligned this Morning got a call in the early Afternoon to come and get it. Get there and they say they couldn't get it Aligned to Ferm's Specs because there "isn't that much adjustment in their Machine". They said something about my Wheels and Tires being too Big (but yet they somehow have no problems Aligning Lifted Trucks with 37's on 24's) and being Old Skool and Scribing when they do Alignments. They Specialize in Working on Medium & Heavy Duty Trucks...so tell me how they can get those things Aligned Correctly when they are Running 22.5 & 24.5 Wheels and prob. Tires that are Taller than a 35...and they can't get my Truck Aligned with 35's on 22's.

So...back to finding as Shop that doesn't have an old POS Alignment Machine or atleast one that isn't "Old Skool".
 
Remember when looking for a good shop of any kind- Mac or Snap-on guys usually have the answer, just ask when no one else is on the truck...
 
Back
Top