Rob Saucier, left, and Rick Tracy, of Groveland, Mass., balance an 1852 hose carriage on a trailer Sunday outside of Saucier’s South Gardiner shop. Saucier, the proprietor of Custom Carriages, repaired the wooden wheels on Tracy’s fire wagon that first fought blazes in Concord, N.H. Tracy plans to display the carriage in fire department musters across New England.