Need to replace stock UCA's for 3" lift

TacoKen

Well-Known Member
I have a 2015 Tacoma 4X4 with Toytec Boss 3" lift kit and need to replace the stock UCA's so I can get some caster adjustment. I was told by Toytec I should try for 3.5 degrees and the only way to do that is with aftermarket UCA's. They sell them for $485 which to me sounds pretty steep. Anyone have some recommendations and also which ones to stay away from? Thanks........
 
Light Racing is good. $485 isn't that bad. My Icon uniballs were $650 and their billet arms are over $1000. No need for uniballs in your case.
 
So looks like the SPC Light Racing UCA's are fair price. Toytec feels I need 3.5 degrees caster with my 3" lift that I thought was only 2 1/2". They had me measure center hub up to bottom of fender lip which was 23". Per their info on 2015 4X4 double cab V6 SB stock is 20". Hate to spend the money but hate the way the truck handles on the hwy. I'll be doing the install and then off to the alignment shop. Wondering if there are marks to set the caster at 3.5 initially?
 
So looks like the SPC Light Racing UCA's are fair price. Toytec feels I need 3.5 degrees caster with my 3" lift that I thought was only 2 1/2". They had me measure center hub up to bottom of fender lip which was 23". Per their info on 2015 4X4 double cab V6 SB stock is 20". Hate to spend the money but hate the way the truck handles on the hwy. I'll be doing the install and then off to the alignment shop. Wondering if there are marks to set the caster at 3.5 initially?
If you hate the way it handles, it's probably because your caster is too low,... 3.5 is a good number. It'll handle much better there. If you're just wanting to set it close enough to drive straight to the shop for an alignment;
Turn the rear cams inward, (to push the LCA outward) about an 1/8th of a turn from where they are now, (might want to mark it with a sharpie) and just leave the front alone.
 
I have been reading some negative posts on SPC light racing UCA's. Mostly ball joint issues. The posts were from a few years ago so not sure if they have improved them or not. I really don't want to spend a lot for UCA's but I don't want issues either.
 
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