Questions with Fox 2.5, UCA, and wheel & tires

[boogielander]

Hello,
I am wondering if I need UCA for my application?
Vehicle in question:
22 Rebel
Tires and wheels:
stock for now. Maybe go to 35s when the stock set is done.
Suspension set up:
Fox 2.5 resi w/ DSC Front 2-3" lift (883-06-166)

I know as a general rule of thumb, anything over 3 inch needs UCA to help correct wheel alignment. However, here's the part that got me scratching my head:
1. Rebels are 1 inch lifted already. If I do the extended travel kit (part #883-06-166) and leave it at 2 inch, that means I only get 1 inch of lift (or 2 inch of lift, compared to none Rebel/ ORG rigs). Am I correct?
2. Will I need UCA if I am only leaving it at 2 inch lift?
3. Assuming I need UCA at 2 inch (or 3 inch, if I can find suitable springs for the rear), will the stock wheel fit with no rubbing/ touching on UCA? Or I need to shell out more money for wheels? Is there any UCA that fit stock wheels?

I can't seem to find the information regarding stock UCA and 2-3 inch lift; all threads and discussions that I came across are all regarding Fox 2.5 with aftermarket UCAs or more lift than I need.

Thanks!

 

[boogielander]

After some research, math, and conversion, here's my finding:

Most UCA needs at least 4.5" of backspacing.
Rebel wheel's specs are:
18X8, ET19
Which roughly translates to 5.25in of backspacing when using the conversion chart here

With that in mind, that answers my 3rd question.

 

[Moto21]

the problem is the fox's have a 24" extended length and the stock UCA at full droop doesn't allow enough range of motion so the ball joint binds up.

 

[boogielander]

the problem is the fox's have a 24" extended length and the stock UCA at full droop doesn't allow enough range of motion so the ball joint binds up.

ah i see. thank you!