Diagnosis threads live or die on the first post. Before you ask, include:
- Vehicle — year, make, model, and drivetrain
- Modifications — lift height and brand, tire size, gearing, anything that changes geometry
- When it started, and what changed just before it did
- What it does — at what speed, on what surface, under braking or acceleration, hot or cold
- What you have already checked, and what you found
The last line is the one people skip, and it is the one that saves you four replies telling you to check something you already checked.
Nobody here can diagnose a vehicle over the internet, and anyone who says otherwise with confidence should be read carefully. What this category is good at is narrowing the list before you pay someone to look.