[Land-speed] Rear End Ratios..

[drmayf]

Slightly different direction this morning... my car shows have been pre 
empted by Ultimate Fighting Championship programs... have to do 
something with my time....

What is the highest rear end ratio that was/is commonly available in 
modern cars? I am thinking of something for better fuel mileage in my 
real Sunbeam Tiger.  Conversely, what was/is the highest ratio available 
for a Dana 44 which is the OEM rear end. Right  now it has a 2.88 rear 
gear.  One of you out there has this information on the tip of your tongue..

mayf