Locking Style Trans. Dipstick - GM TH400 Long

The MOROSO Locking Style Trans. Dipstick for GM TH400 Long is a precision transmission fluid measurement tool designed for serious TH400 builds and high-performance applications. Accurate fluid level monitoring is crucial for preventing heat damage, seal wear, and catastrophic failure in Turbo 400-equipped vehicles, whether they are street machines, drag cars, or restomods.

This dipstick features a robust locking collar that secures the measurement tube in place, preventing accidental withdrawal during hard acceleration or cornering. The graduated markings are laser-etched for durability and readability, resisting fade from heat cycling and repeated checking cycles. At 24.75 inches in length, it effectively reaches deep into the pan without binding.

This dipstick is essential for anyone running a GM TH400 in a performance or custom application, including builders, restoration shops, drag racers, and street enthusiasts. Its design accommodates the long-tube configuration of GM TH400 transmissions, making it a valuable tool for diagnosing transmission issues or optimizing shift quality.