jojojona's Hopper Parts 1.4

This update brings many new parts such as:
- 6 new transfercases,
- 2 new differentials,
- A V5 engine,
- 2 new transmissions,
- And fuel injection.

It also has 7 new configurations:
- A drag and a track-ready configuration,
- A manual and automatic sub-base configuration,
- A cheap off-road configuration named the "Piglet",
- A special configuration,
- And a sport version of the ZXT-6 named the "SXT-6".

Note on how to use the Transmatic automatic gearbox:
- Switch to Low on the transfercase,
- Drive until you get to max speed,
- Switch to High on the transfercase,
- Keep driving.