Realistic Engines for Peterbilt 579, Kenworth T680 and W900

With the release of the W900, I’ve decided to update my Realistic Engines and Transmissions pack for ATS.

Version 2 Changes:
-edited stock engines to comply with my pack
-removed my engines that were duplicates of stock
-created 6 Allison 10 speed “automatics” (they feel pretty good!)
-added all of KW_Drivers EF transmissions to the W900