jco77on
New Member
- Joined
- Oct 20, 2014
- Messages
- 59
- Reaction score
- 0
- Points
- 0
- Location
- Utah
- Vehicle Year
- 1989
- Make / Model
- Ford
- Engine Size
- 2.9L V6
- Transmission
- Automatic
Bought new spark plugs, but the thread length is longer on the new ones. Everywhere I look says they're compatible though. Should I be worried? The new ones are Champion 408's and the old are Autolite 765's.