Contacts
Chevrolet campaign no 74-c-19. Possibility when the allison mt-650transmission is matched with either the 366 or 427 cid v-8 engines, the 1,3 to1,0 governor drive-to-driven gear ration can create excessive governor rpm whenoperated in top gear at or near maximum rated engine speed rpm of 4000. Theexcessive governor speed can result in a governor driven gear failure. Afailure of this type can cause a down shift of the transmission withoutwarning. If this occurs, transmission and engine speed would increase greatlyand may result in one of these components breaking. (Correct by inspecting andinstalling new transmission rear housing assembly and governor with 1. 0 To 1.0 Drive-to-driven ratio. )
What to do
- Check your VIN. Enter it at nhtsa.gov/recalls - it shows whether this recall applies to your vehicle and whether the repair has been done.
- Call a dealer. Any authorized Chevrolet, GMC dealer will do the repair free, whether or not you bought the vehicle there. Quote campaign 74V226000.
- Ask about parts and a loaner. If parts aren't available yet, ask what to do in the meantime.
- Keep your paperwork. If you paid for this repair before the recall, you may be able to get reimbursed - here's how.