90mm Gun Motor Carriage M18

Walter_Sobchak, on Nov 09 2014 - 04:28, said:   I don't know much specifically about the Hellcat suspension, but most postwar US suspensions had volute spring "bump stops" above each torsion bar station to keep the suspension arm from moving beyond what the torsion bar can withstand.  Below is a picture I took of the suspension from an M103, you can see the volute springs pretty clearly.