LR uca's won't help with towing but they will help with the ride quality and alignment. They will also help with clearing larger tires.
You'll want LR UCAs if you want to use 33" tires.
Are 285s 33s?
Pretty much. You'll have all sorts of rubbing if you can't get over +4* of Caster.
The Light Racing UCA's are for getting a better alignment than the factory adjustments can offer with a 3 inch lift. They are not a requirement to add but they will make your truck much easier to align and give it a better alignment. Give me a call if you wish to purchase them.
off topic here, but where did you get the trailer ? do you happen to know the make and model ?
I have a buddy with a Z06 thats thinking about a trailer for his, any info would be great.
More confused than ever...well my moto has always been go big or go home. So I'll probably just end up popping the cash to go big.
Because with a 3 inch lift in the front ,to get the camber within specs they have to bring the caster setting down to the minimum or even a little lower then the low end spec of 2.2 from the ones I've seen posted .
Low caster settings on 5th Gens reduce straight line stability and makes it tend to wander on the highway and a very light steering wheel feel.Caster settings of 4.0 or more make for a much more stable ride and feel.
Aftermarket UCA's are angled to get that lost caster back, have bigger ball joints to get 2+ more inches of down travel and are a just alot stiffer and stronger then the stamped steel factory ones.
Well worth the upgrade in my book!!