Quote Originally Posted by 67440Dodge View Post
If your car had an 18 spline in it, it either had a Hemi or someone swapped it in during it's life. It's also well know to find oddball combinations on cars (say a Dana behind a slanty) so it may have come from factory that way. Rich (WS27) would know where to look on fender tag to determine if it came with a 18.

thank you