Gear ratios dont know what brand they are, but I understand they were a popular gear for that crowd.
Imo 3.55's are too soft for the rpm sustainability 'reasonably speaking' of a sb mopar... meanwhile 3.91's have it up higher where
It's that much louder and annoying for long distance.... so 3.73 is my street fav....3.91 is great for around town where you never use the freeway.
