For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra Denali 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E/4L65-E/4L70-E 🢒 No Second Gear, No Fourth Gear, and No Reverse Gear

No Second Gear, No Fourth Gear, and No Reverse Gear for GMC Truck Sierra Denali 2007

No Second Gear, No Fourth Gear and No Reverse Gear

Checks	Causes
Reaction Sun Shell (670)	Broken spline on reaction sun shell/replace shell.