Precise Compatibility – Designed for GM 4L60E, 4L65E, 4L70E, 4L80E, 700R4, 200-4R, 3L80, 4T60E, 4T65E 4-speed automatic transmissions. Features M10x1.5x16 lock plate for perfect fitment (verify part number 2307305 before purchase) Heavy-Duty Performance – High-strength Grade 10.9 metric flange bolts (matches OEM quality) ensure durability and withstand extreme transmission stresses Anti-Corrosion Protection – Rust-resistant coating enhances longevity, even in harsh driving conditions or humid environments Hassle-Free Installation – Kit includes 3 premium bolts for reliable mounting. For added security, apply thread locker during installation to prevent loosening over time Quality Assured – Manufactured under strict quality control for consistent performance and reliability. Confidently restore your transmission's integrity—contact us for compatibility questions