Winters Shifter Replacement Gate Plates for GM TH350 and TH400 Restore proper shifting performance in your Winters shifter with these replacement gate plates designed for GM TH350 and TH400 automatic transmissions. Whether your current plate is worn, damaged, or incorrect for your setup, this replacement ensures accurate shift detents and a clean, repeatable gear pattern. Built to Winters specifications, these gate plates are ideal for off-road rigs, race cars, and custom builds where precision shifting matters. Instead of replacing the entire shifter, this is a simple and cost-effective way to bring your setup back to proper working condition. Includes (1) Winters Replacement Gate Plate Designed for TH350 / TH400 transmission patterns (107-1, 157-1 Series) Fits specified Winters shifter models Specifications Product Type: Shifter Replacement Gate Plate Material: Hardened steel construction Shift Pattern: GM TH350 / TH400 Fitment References: 107-1, 157-1 Application: Winters Sidewinder and compatible shifters Use: Replacement or transmission pattern correction Fitment Fits Winters shifters with GM TH350 transmission setups Fits Winters shifters with GM TH400 transmission setups Compatible with Winters shifter assemblies referenced as 107-1 Compatible with Winters shifter assemblies referenced as 157-1 Verify existing gate plate and transmission before ordering Tech Insight Each gate plate is machined to match the exact gear spacing of a specific transmission. Running the wrong plate—or one that’s worn—can lead to missed gears, sloppy shifting, or inconsistent detents. In high-performance or off-road applications, especially with manual valve bodies, having a precise and predictable shift pattern is critical. Swapping in the correct gate plate ensures your shifter performs exactly how it was designed, giving you confidence every time you grab a gear.
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