This flashable zip will restore your LG G Pad 8.3 GPE to factory software with Root and Busybox.
This will come in handy for OTA updates or to just restore your G Pad 8.3
Boot into recovery
Backup - Optional
Wipe -> Advanced Wipe - Dalvik Cache, System, Data & Cache
Flash restore ZIP file
You will need to flash custom recovery after the restore is complete.
Download https://goo.im/devs/androiduser00110001/ROM/ it will be in the V510 folder. Uploading now. Have to run so can't finish post.
Thanks to @Drgravy for this method on the V500
@autoprime - for the TOT file
@Chainfire - for SuperSU and install script
@jazzruby - BusyBox install script