#D12970A SPRING, 46RE / 47RE / 48RE, OVERDRIVE CLUTCH, 1990-UP, MEGA SPRING

Overdrive extreme duty Mega Spring. This is the large spring that holds the overdrive direct clutch engaged when the transmission isn’t in 4th gear. Fits 500, 518, 618, 46RH / 46RE and 47RH / 47RE / 48RE transmissions. Needed for high horse power / torque motors. Just like the original spring but 1/4 inch longer.