Made an upgrade of the 9398 with XL motors and gave it 30% more additional parts. This is my MK2 version as my first upgrade was not as successful. Also it uses
LEGO Set 9398-1 4 x 4 Crawler (2012 Technic) | Rebrickable - Build with LEGO
LEGO MOC Ultimate MK2 4x4 Crawler 9398 Upgrade by Cyborg-Samurai | Rebrickable - Build with LEGO
LEGO Technic 4X4 Crawler (9398) Building Kit 1327 Pcs Truck Lego Set | eBay
LEGO Set 9398-1 4 x 4 Crawler (2012 Technic) | Rebrickable - Build with LEGO
9398 Color Changes (Yellow vs Orange, Front) | Lego 9398 4x4… | Flickr
LEGO® 9398 4x4 Crawler - ToyPro
LEGO MOC Lego Technic 9398 functional crawler alternative B model by Secon Yan | Rebrickable - Build with LEGO