Installation:
1.Extract the Folder "gmchummerev" into Gta5 --> mods --> update --> x64 --> dlcpacks. 
2.Open "OpenIV"
3.Go to mods --> update --> update.rpf --> common --> data.
4.Find dlclist.xml and open it in edit mode
5.Paste "<item>dlcpacks:\gmchummerev\</item>" before "</Paths>"
6.Run the Game and Have Fun
Additional
7. Follow me on Instragram
   https://www.instagram.com/mohammed_suhaib_ahanger/
   And
   https://www.instagram.com/star_brands_studio/