The Sonnax 28861‑03 Shift Detent Lever Spring is a direct replacement for the OE spring used in GM Powerglide transmissions. Precisely engineered to reapply tension to the detent lever, also known as the “rooster comb”, this small yet essential component ensures confident, positive gear engagement by maintaining firm resistance against shift detents.

Manufactured to Sonnax’s high-quality standards, the spring delivers consistent and reliable force over repeated use, preventing sloppy or imprecise shifting under load. Its durable construction and factory-spec dimensions allow for seamless integration into stock or performance-oriented builds, making it ideal for Powerglide rebuilds and race applications alike. Whether performing maintenance or upgrading your valve body, the 28861‑03 spring restores crisp, tactile shifting and enhances overall transmission feel and performance.