Tein Flex Z annoying Tik-Tik sound
 

I've been with Tein Flex Z with 1.2 inch (Default drop) for 2 years.
i start hearing my driver side tik-tik sound whenever i stop or brake hard.
i also hear this sound turning right.

any idea? pre-load is loose little? need to tight-up more?

Yeah, likely the preload collar is coming undone. I check mine about every 3 months and spray some white lithium grease into the top hat . I have found at least one preload collar loose very time I check and I have torqued them to spec. I think it is 44nm. I can't remember for sure right now.

I should check if my preload collar is loose. i thought my spring is binded.
but i will check when i do my transmission and diff. replacement

any idea if this is not preload?