Street Performance Transmission, Automatic

STREET PERFORMANCE TRANSMISSION

• Automatic
• High performance band
• High performance 2nd servo
• Billet 4th servo
• Heavy duty 3-4 clutch pack
• Heavy duty sun shell
• Super input drum

Engineered by Coan Racing, the COA‑111104 is a performance-oriented automatic transmission based on the 4L60E platform, meticulously built for powerful street performance. Featuring a high-performance band and upgraded second-gear servo, this unit delivers firmer, more precise clutch engagement, enhancing both shift quality and durability. The transmission is further strengthened with a billet fourth-gear servo and a heavy-duty 3–4 clutch pack, providing improved holding capacity and resistance to heat-induced fade during spirited driving. A heavy-duty sun shell and super input drum form the backbone of the internal assembly, bolstering structural integrity under high torque loads. Assembled in the USA to Coan Racing's demanding standards, the COA‑111104 offers a turnkey solution for drivers seeking enhanced longevity, consistent shift performance, and robust construction in a compact package.