Can my SPC UCA's adjust past 3.7⁰ caster, between 4-5⁰ perhaps?

Can my SPC UCA's adjust past 3.7⁰ caster, between 4-5⁰ perhaps?
Currently sitting at 3.4⁰-3.7⁰, 0.2⁰ camber.
3/2 lift, 5100's w/ upgraded springs
285/70R17 load E
17" 0 offset/5 backspace
*edit: (9" width rims)
1.25" Spidertrax, BMC

[grinding/rubbing noise when turning hard and flexing up an incline. I'm trying to figure out if I'm still rubbing BMC'd body mounts, I've masked them off for evidence. Or, could it be my SPC ball joints that were assessed 6 months to live this spring by 4WheelParts. Maybe there's metal on metal now in the socket? Masking tape seems untouched so far, before taping I thought I saw a clean mark on the inner most edge of body mount representing possible rub. But iunno yet

 

More caster on the UCAs will just bring the rear closer to the firewall.

 

Thanks dude
I think I follow

 

I think your scrub radius is too high. Here is an excellent post on how to fit tires on IFS. If rubbing is your problem, it may help.

Good luck!
https://m.youtube.com/watch?v=LAYGdcKSA3o

 

I'll take a look now during baby nap time haha
Thank-you!

 

Unless its all over the highway and doesn't track straight there's no reason to adjust the caster. If it rubs the body mount, just chop it.

 

and just fyi for ya'll, the front bumper is max high clearance cut, fender liner chopped straight across from bottom of leading fender edge.
my body mounts are chopped nicely.
also fender mount pinch welds have been chopped welded & painted. rear of front fender liners cut in trajectory, and wheel wells hammered in that area.

 

The SPCs adjust caster from the top (obviously), so increasing your caster angle from the UCA means shifting the top of the wheel rearwards. This will increase rubbing against the body mount. Normally not a big issue running 285 tires, but you have wide (9 inch?) wheels and 1.25" spacers, which probably makes for a badass look but it compounds your rubbing issues.

Your 3 inch lift reduced your caster, the unequal 3/2 added some caster back in, and the SPC added some caster by pulling the top back. Maybe a skilled 4x4 alignment shop could add caster from the LCAs (shift the bottom forward - if there is any adjustment left) and let you reduce it a bit from the UCAs (move them forward as well), creating a little more space between wheel and body mount.

 

Ahh see there ya go, thank you very much. Perhaps I should be saying I need more LCA caster not UCA.
My LCA's are stock Toyota, same joints, same bushings, owned since new.

 

And I've posted on here for help couple times now - there's a grinding/rubbing noise sometimes when I turn hard left or right going quick up an incline. Not getting any rubbing evidence elsewhere. Could this be the ball in socket metal on metal?