Installing a Holman Clamp & Lock Ladder Rack on RAM ProMaster City Posted on June 30, 2023 Products Featured In This Video Sale! Clamp & Lock Ladder Rack – Aluminum – Single – Transit Connect, ProMaster City, Metris, City Express, NV200 $882.48 $794.23 39 in stock. Ships within 1 business day. -Add to cart Sale! Clamp & Lock Ladder Rack Kit for RAM ProMaster City $715.51 – $1,117.11 -Select options