Is 3.5" too much lift for stock UCAs?

thinking of adding a .5" spacer on top of the Toytec/Eibach coilovers with 3.5" Max Trac spindles. Are the stock UCAs capable of compensating for that much lift?

 

If you’re adding a taller spindle, then that should put you back within limits of the UCA.

 

Don’t add the spacer. Those things are garbage. You’re better off in the long run by adding a spindle or doing a bracket lift. Just my .02 cents.

 

I'm at 3" up front. UCAs needed. My truck wanders all over the road; Caster is in the red, alignment is maxed. I'm installing UCAs today. @KLLVMDCL I would install UCAs when you install your suspension. I went with SPCs from @BOSS4x4s

 

I'm at 3" no UCA needed all of my alignment numbers are inspect. That just goes to show that each truck can vary.
Avoid adding a spacer ....

 

Not how these spindles work. They retain stock geometry, just lowers the mounting point of the hub.

3.5 of lift on the a arms is going to ride like crap. You’re not going to have much down travel

 

That’s essentially the same thing. Lower hub equals a taller spindle. Spindle lifts are meant to maintain factory geometry.

That’s assuming this is a 2wd truck, which I imagine it is. A 4wd with a new taller spindle would still need a crossmember drop to keep cv axles in line.

 

Yes on the 4wd example.

Yes he has a 2wd. But the actual distance between uca and lca mounts on a lift spindle is exactly the same as a stock spindle.

It does not correct any uca angle. That is done only through length/strength/preload of the shock/spring.

Even aftermarket uca’s do not correct the angle, they have a more flexible joint at the spindle to have more range of motion

 

Don't do spacers!

 

the spacer im referring to is the coachbuilder .5". I figured the consensus on those was that they were harmless in comparison to the 2.5" hunks

 

The spacer really isnt that big of a deal from a saftey aspect. How much height do you have out of your toytec co’s?

And do you have uca’s too?

 

the coilovers are set to 3", 3.5 on the spindles, and stock ucas

 

Thats pretty tall. Is half inch going to make that much of an improvement in looks?

I would get a floor jack and see how much down travel you have currently

 

Ahh my bad. I should have paid closer attention. In my defense, I literally spent Sunday cutting out 4” spacers out of a Tundra because they are garbage. The “spacers” from coach builder are more commonly referred to as Shims. I immediately assumed giant monster things.

Like some other have asked, what are you trying to accomplish? Generally stacking lifts and mix/matching parts just leads to poor suspension performance or damage.

 

youre right, I should have said shim instead.

so without getting into too much detail, my current measurements are 37" in front 40" rear. I want 1-2" of cali lean with a 6-7" total lift in front. my plan was to do max trac spindles+toytec coilvers+.5 shim in front and 3" blocks and fox shocks in rear. for a total of 44" in front and 43" in rear

 

i have the same thing as you on front of my 2wd tundra. my uca are stock and i wanted to replace them with aftermarket one. but most of them say 2-4 lift on them. will they work for our setup. since the spindles retaon stock geometry. or it will be fine since the added strut lenght to 3"