5th gear for the T56 transmissions in a Corvette, GTO & CTSV. (w/ 3-Pc Rings)
Genuine OEM Tremec part. High-Quality Aftermarket now available!
Above 5th gears do not fit the T56 with the 1 piece counter shaft.
USE TUEN4961 for units w/ 1-pc cluster. 58 teeth
USE TUEN4123 For Units w/ 1-Pc Cluster, 61Teeth