Although we rarely apply left-hand threading (reverse thread) to our coilovers, we’ve taken extra measures to make sure customers that purchase these kits are aware that their front left coilover uses left-hand/reverse threading, such as marking the top of the box with warning labels (which block the box staples, meaning when the customer cuts open their coilover box, they will see the labels), marking the front left damper with a caution sticker (specifically on the spring seats and seat locks), and also noting this in the included manual.

Yet, we still run into this issue and customers have called us stating that their front-left coilover seat locks are seized.

So, instead of having to remind you which kits have left-hand threading, and how we mark the boxes, components, and manuals, please just know that if it’s requiring you too much force to try and break loose the front left coilover’s seat locks, please look and the threaded body and pay attention to which direction the threads are going

Here is something we sent back to a Honda specialist shop after he sent us a picture of his customer’s “defective TEIN coilover”: