One of the reasons the 4.10 third members are so scarce is the fact that us dirt track racers scavenged up every set we could find back in the 1970's to run on 1/4 mile tracks behind Muncie 4 speed transmissions with a 1.88 ratio 2nd gear. That setup was ideal for running a "long quarter"- - - -a track that mesured a quarter mile around the infield. A "short quarter", measured around the outside, needed a 4.56 gear.
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!