LEGO MOC Trailer Tr4 MkII lowboy by Ingmar Spijkhoven | Rebrickable - Build with LEGO
Amazon.com: PEXL Technic Truck Trailer for Lego Technic Mack Anthem 42078, Low Loader with Steering Axles for Lego Truck 42098 85 x 12 x 8.8cm (0SABT19MRLY115554T01) : Toys & Games
LEGO IDEAS - Heavy Hauler - Detailed Tractor and Lowboy Trailer
Ingmar Spijkhoven: Trailer Tr4 MkII with instructions