In the 4L60E 4L65E 4L70E 700R4 transmissions 2nd and 4th gear range are dependant on proper band operation. The band
grips the reverse input drum to create these two gear ranges. Alto Products has improved this band for use in high
performance and heavy duty applications. The Alto Carbon Power Band uses a high energy friction that can withstand
higher temperatures created in high performance applications. The wide band gives more gripping surface which greatly
increases efficiency of the band. Alto also made the band anchors thicker for added strength for use with larger 2nd
and 4th servos in high performance applications.