Suspension is torsion bar. This is heavy, weighing 52#. There are several 3D print/STL files available for 1/10 scale RC Tigers that use can use to print the missing parts.
Metal 1/10 Scale Tiger I Tank (Early) - Metal Body & Tracks
US STOCK 1/16 Scale 7.0 Upgraded Metal Ver German Tiger I RTR RC Tank 3818 Model
Mato 1:16 Scale Tiger RC Tank Metal Tow Shackles With Screws Upgrade Parts
heng long 1/16 scale rc tank parts metal gearbox set tiger 1 and latch set
12 GO King Tiger WW2 German Tank 1/28 Scale Tiger II + Bonus Cobi Figure