...hello, I just removed my upper and lower intake and have the O-ring gaskets ready. I was wondering if anyone knows how much i need to torque the intake and upper intake bolts to reinstall. Any help is appreciated, thanks. John My Explorer 1998 4.0 SOHC was vibrating, like a rough idle mainly in drive with the car at a stop. I changed the motor mounts and tranny mount. It looks like hopefully this will help.