The crawler-transporter is able to raise and lower its sides and corners independently using its hydraulic system. It uses its hydraulic suspension to keep the mobile platform and rocket level, as it climbs up the 2.9 degree slope to the the launch pad.
https://www3.nasa.gov/sites/default/files/atoms/files/combined_crawler-transporters_fact_sheet_final.pdf
More pics at https://images.nasa.gov/search?q=crawler&page=1&media=image,video,audio&yearStart=1920&yearEnd=2026
6/n