T3-3-5551HP – Transmission Yokes – 1350 Series – 31/32 X 1.378 Splines – 1.886″ Hub Dia

Spec Summary: T3-3-5551HP -- 1350 Series | TH400 | Forged Chromoly | Black Oxide | 31/32-Spline x 1.378" | C/U-joint to End 7.940" | Hub 1.886" | Counterbore 0.220"

T3-3-5551HP is the standard-length TH400 chromoly yoke, 1.002" longer than the short version (T3-3-5571HP). The 0.220" counterbore is a small pilot that references the TH400 output bearing retainer face -- this shallow counterbore prevents the yoke from rocking at the output bearing, which is particularly important in high-torque TH400 builds where drivetrain shock loads are severe.

Forged chromoly construction provides the strength needed for high-horsepower TH400 applications without the weight penalty of overbuilt sections. The black oxide finish is standard for performance drivetrain components where cosmetic appearance is secondary to function. When ordering for a drag race application, confirm whether the "short" (T3-3-5571HP) or standard length yoke matches your chassis dimensions -- using the wrong length yoke in a race car can cause the driveshaft to bind or fall out at track speed if the slip engagement is insufficient.