Cranked keys

[Mrobinson]

What will cognition upper arms improve besides ball joint angle

 

[Alex_M]

They've also got replaceable ball joints instead of having to replace the whole UCA, but if you only have cranked stock keys then you don't need aftermarket UCAs. Actually probably better off without them as most aftermarket UCAs are designed for 2-4" of lift in the front, so you'd be overcorrecting creating even worse angles.

Personally I like doing that upgrade if a truck needs UCAs anyway, but otherwise I rock the stockkers until they're worn out. I do not use aftermarket arms until I reach 2 or 2.5" of level though.

 

[Mrobinson]

I'm at 2.5