One of the Chevy 4X4 setups used a 3.07 axle ratio in the front differential and a 3.08 in the rear- - - -different manufacturers for front and rear axles! I believe it was a full time 4X4 with a differential built into the transfer case.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!