Why would my truck not go in reverse?

If your truck won't go in reverse, it could be due to several issues. Common causes include a low Transmission Fluid level, a faulty transmission linkage, or a malfunctioning transmission itself. Additionally, problems with the parking pawl or a worn-out clutch (in manual transmissions) could also prevent reverse engagement. It's advisable to have a mechanic diagnose the issue to ensure proper repairs.