Will I "need" UCAs?

Awesome thanks guys! Jandrews... You are my hero! I think ive told you that before... Maybe in pm though.... And maybe in different words haha. Which ones are you running mr. Jandrews?

 

Total Chaos.

DSM, TC, Camburg, Icon will all do fine. I'd go with whatever you can find the best deal on.

 

I was leaning towards camburg but I'll shop 'round

 

As always, things are more complicated...

Caster is created from the angle of the spindle right? If the upper ball joint and lower ball joint are in a perfect vertical line, you have zero caster.

Now, using the factory adjustment cams, you can create more caster by moving the LOWER ball joint FORWARD. So yes, increasing caster in this way, moves the wheel FORWARD in the wheel well.

But once the factory adjustment cams on the lower control arm are maxed out, now what? Well you can install an aftermarket upper control arm to further increase caster. But it's going to increase caster by moving the UPPER balljoint AFT or BACK. So now, we're once again moving the wheel BACK in the wheelwell.

I didn't have to "cab mount chop" until after I put on replacement UCAs.

 

Sort of. While true to a degree, the greater distance from the hub to the upper uniball than hub to lower ball joint means wheel relocation when adjusting caster through the upper is much less significant than when adjusting through the lower. Thus if you move your wheel forward 3/8" when maxing the cams, you may move back maybe 1/16 or 1/8 adding aftermarket UCAs. You're still farther forward than you were stock.

A net gain of caster means a net forward movement of the wheel in the wheel well.

That's why a lot of the guys running 35s and 36s specifically have their caster set at +4.0 with aftermarket arms...it helps clear the body mount.