The feed limit high valve in listed GM transmissions limits line pressure feed to the boost ball system for "C" and "F" clutch controls. Excessive wear in the feed limit high valve bore allows pressure leakage, which can be the source of shift problems and clutch failure.

Installing Sonnax feed limit high valve kit 105740-58K corrects circuit pressures and restores proper valve functions.

• Hardcoat anodized aluminum valve combats premature wear
• Highly wear-resistant valve sleeve increases life of part
• Undersized valve and replacement spring maintains OE functions and pressures
• Drop-in Zip Valve™ parts install quickly and easily