New sound I made:
http://www.megaupload.com/?d=RWOO5PKK
1- backup your files
2- Put the files in the rig n roll folder\data\wav\MOTORS\CaterpillarC15
3- Start the game and pick the HERCULES LIBERTY truck.
NOTE: You can replace any truck sound you want. I took CaterpillarC15
as an example.
Video:
Let's keep all Engine Sound Mods to one thread.