Band Anchor Strut

The Sonnax 28108 Band Anchor Strut is a heavy-duty replacement component engineered to strengthen the band anchor assembly in GM Powerglide transmissions. Crafted with an extra-thick cross‑section, this precision-molded strut resists bending under the high binding forces exerted during gear shifts, providing more reliable anchoring compared to standard OE parts.

Designed to guide and stabilize the servo band, the 28108 ensures proper alignment and tension, which translates into cleaner engagement and reduced risk of servo or band droop over repeated use. Manufactured to Sonnax’s exacting standards, this strut delivers long-lasting durability, making it an ideal upgrade for street-driven rebuilds or race‑tuned Powerglide builds. By reinforcing a critical yet often overstressed internal element, the 28108 helps preserve transmission integrity and enhances shift performance under all driving conditions.