63 rear end info needed
Where is the code on 63 vette that tells what ratio the gears are?
thanks |
On the underside flange right where the back cover bolts to the rear housing there are codes.
http://i267.photobucket.com/albums/i...ps00efefc2.jpg for '63, here are the two letter codes CA - 3:36 standard, manual or PG CB - 3:36 Posi, manual or PG CC - 3:55 Posi, 4spd CD - 3:70 Posi, 4spd CE - 4:11 Posi, 4spd CF - 4:56 Posi, 4spd CJ - 3:08 Posi, 4spd CX - 3:70 Std, close ratio 4spd CZ - 3:08 Std, Wide Ratio 4spd if you have others codes, post them and we can figure out what it was originally. |
Just another note - I have seen these with codes that look like they were put on pretty carelessly. Letters jumbled all over the place.
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Originally Posted by Michael H
(Post 1585062058)
Just another note - I have seen these with codes that look like they were put on pretty carelessly. Letters jumbled all over the place.
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My code reads CJ112762. It sure does not seem like that it is a high ratio..i thought it should be a 3:70???
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Originally Posted by lonzoo
(Post 1585062534)
My code reads CJ112762. It sure does not seem like that it is a high ratio..i thought it should be a 3:70???
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Originally Posted by Michael H
(Post 1585062038)
On the underside flange right where the back cover bolts to the rear housing there are codes.
http://i267.photobucket.com/albums/i...ps00efefc2.jpg for '63, here are the two letter codes CA - 3:36 standard, manual or PG CB - 3:36 Posi, manual or PG CC - 3:55 Posi, 4spd CD - 3:70 Posi, 4spd CE - 4:11 Posi, 4spd CF - 4:56 Posi, 4spd CJ - 3:08 Posi, 4spd CX - 3:70 Std, close ratio 4spd CZ - 3:08 Std, Wide Ratio 4spd if you have others codes, post them and we can figure out what it was originally. Don't these codes like "CA" - 3:36 indicate whether the manual transmission was a 3 speed or a 4 spd? Syd |
Info I posted was out of the NCRS Spec Guide, so all I can think of is that the CA and CB were all that was available for 3spd manual cars. I doubt that this is the case, maybe others can chime in and comment.
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Originally Posted by lonzoo
(Post 1585062534)
My code reads CJ112762. It sure does not seem like that it is a high ratio..i thought it should be a 3:70???
Russ |
Originally Posted by Michael H
(Post 1585069798)
Info I posted was out of the NCRS Spec Guide, so all I can think of is that the CA and CB were all that was available for 3spd manual cars. I doubt that this is the case, maybe others can chime in and comment.
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unless you know the rear and the rest of the vette are original, the gears may have been
changed over the years. jim |
Did the rotation and it comes out to be 3:70. Must have had gears installed because it is a CJ (3:08) code.
thanks guys ; |
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