Cognito UCA dilema..

[Hellz]

ya i got it tightened down to the 75 ft lbs spec.

just needed a shallow socket to get in there. both sides needed alot of tightening.

maybe about 500 miles on it that way.

i think i am going to have to rip apart the whole passenger side to resolve this pulling issue.

i swear the shop i normally take my H2 to get alignments, they are sick of seeing me. seems every weekend i am in there for a new alignment.

maybe ill give them a break this week and go to another shop.....

[twr]

Hi glad you got ball joints tightened. Does it pull all the time?

[charles06]

Which UCA's did you get? I have the ones with the uniball ball joint. My H2 also pulls to the right at times, but I think it's due more to the tires.

I had my dealer install them, and they said the truck was a bear to align after. They also told me that these are not really designed for an H2, but for a full-size truck. They're just close enough to work. I can't remember all the specifics, but he seemed to know what he was talking about.

[Hellz]

UCAK100001
For the GM 01-06 8-Lug vehicles, including the 1500HD, 2500, 2500HD, 3500, and 2500 Suburban/YukonXL/Avalanche and Hummer H2


ya granted it lists the H2 on there, but all the vehicles listed are basically the same. the H2 does have a Yukon front end on it. there have been a few times already that i go to the parts store, and to be told they dont have a part for my H2, but when i tell them look up a Avalanche, they seem to magically have the part.


im pretty sure that the pulling is from the bearing hub, i just dont want to go through the effort of ripping it all the way down and putting it back together.
i think maybe the Hub maybe wasnt seated in 100% straight. maybe it is cockeyed ( ) a little. i have been tossing the idea of picking up another hub to throw in there to replace this one all together and have the old one ( which is still new-ish about 1000 miles) as a trail backup or something.

since tighteniing down the UCA's, i have a feeling that maybe the shop will have a easier time getting an alignment on my H2. before, it would go close to OEM specs, and even closer to the Cognito specs, but there was no room on the guide on the drivers side. it was completely maxxed out.

[charles06]

I always thought the same about the suspensions, but my tech seemed to know what he was talking about. He pointed out something different in the A-arms. I'll try to ask him again.

He's also told me that ever since they put those UCA's on, they've had a lot of trouble aligning it. So, either he's right, or I need a second opinion...

[Hellz]

Originally Posted by charles06

I always thought the same about the suspensions, but my tech seemed to know what he was talking about. He pointed out something different in the A-arms. I'll try to ask him again.

He's also told me that ever since they put those UCA's on, they've had a lot of trouble aligning it. So, either he's right, or I need a second opinion...

aliging to OEM specs or the Cognito specs?

on the last sheet of the install instructions are the new alignment specs for the UCA.

i think for the toe its the same as OEM, but for camber it just adds 1 degree to OEM.

[charles06]

Not sure. What they told me was that if they tried to get a little negative camber, it would throw the caster way out of wack.

I have a few other variables at play, such as a torsion bar bolt that seems a bit off. My plan is to get my new tires installed, torsion bolt adjusted, and alignment done all together.