Sonnax offers repair sleeve AL-DS-1 for worn piston damper assemblies in Allison 1000/2000/2400, 2001–2005 model year units. This repair sleeve allows you to salvage the OE piston/damper assembly, which is not currently available to the aftermarket.
Repair sleeve for worn piston damper assemblies
No disassembly of piston damper required
Heat treated for longer life
Machining and welding required
Existing Customers: Contact your sales representative.