View 0 Photos View 0 Videos 1981 Allison MT643 Transmission for a Ford C8000 $1,625 USD (USED) Allison MT643 Assembly#: 2410174943 Input Lgth: VERIFY Input Dia: AUTOMATIC Pilot Dia: AUTOMATIC Ref# 6884350 ConditionUsedAssembly Number2410174943Fits To Make(s)FordFits To Model(s)C8000Part Number6884350Stock Number25866580 MLS Number13826631CategoryTransmissions Last Updated9/28/2025 LocationSpencer, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info