5:55 rear end!
Thread Starter
Racer
Joined: Nov 2008
Posts: 491
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From: Myrtle Beach South Carolina
5:55 rear end!
So there is a 5:55 differential for sale on eBay. Thinking this couldn't be correct, I inquired to the seller "surely you meant 3:55". He was insulted and told me 1969 corvettes had this as an option.
Really?
Really?
Race Director
Joined: Mar 2003
Posts: 11,608
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From: Eustis ( Area 51 Bat Cave ) Fl
Never heard of a 5:55 ratio......especially in a 69 vette...( it would take off like a lumber truck.)....many sellers are, well...clueless...but hey didnt his ego trip make you laugh harder at him being a dolt?
Race Director
Joined: Aug 1999
Posts: 18,126
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From: WI
4:56, 4:88, 5:14 ring & pinions were all available "over the counter", part numbers listed in the Corvette section of the (older) versions of the Chevy Power book.
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From: whiting NJ
Burning Brakes
Joined: May 2009
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From: Tucson AZ
St. Jude Donor '12
I wrote the guy. He says he rotated the pinion and counted the axle rotations. Not sure how he could get accurate to the hundreths of a rotation that way, but he is sure about the ratio.
Race Director
Joined: Oct 2000
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From: Fair Oaks, OK
Race Director
Joined: May 2006
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Isnt that backwards
Unless someone misunderstood you are supposed to rotate the axle and count the pinion rotations.
Burning Brakes
Joined: May 2009
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From: Tucson AZ
St. Jude Donor '12
NOW we're talkin!
That's me trying to be literate before finishing the first cup of coffee this morning.
That's me trying to be literate before finishing the first cup of coffee this morning.
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Burning Brakes
Joined: May 2009
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From: Tucson AZ
St. Jude Donor '12
Melting Slicks
Joined: May 2006
Posts: 3,303
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From: Lynn MA
I have some 5:57's sitting for my Camaro 12 bolt...eventually will swap them in as I have a 302 that went through the eyes at the dragway at 9500....never heard of a gear set that low for a Corvette rear...
Racer
Joined: Apr 2010
Posts: 495
Likes: 113
This is what I'm trying to say, (thanks Duke)
With one wheel stationary the driveshaft will turn half the revolutions of the axle ratio, so 2.73 x 2 = 5.46, so it looks like a 5.55, but be sure your count of driveshaft revolutions is very accurate...
With one wheel stationary the driveshaft will turn half the revolutions of the axle ratio, so 2.73 x 2 = 5.46, so it looks like a 5.55, but be sure your count of driveshaft revolutions is very accurate...