CAN ANYONE TELL ME WHAT THIS REAR-END IS OUT OF AND WHAT GEARS WERE IN IT ORIGINALY. GOT IT FROM A 64 CHEVELLE AND CURRENTLY HAS 4:56 RATIO. STAMPED: KT 1201 B E CAST: GM7 3894939
I see the KT code in the book for 66 as well. Is there some way to tell if it's 66 or 67 by the date code? I have never seen that listed anywhere if there is.
The 66 should have a flat pad with a bolt hole in the center where the bottom of the coil spring sits. The 67 has a raised mound for the bottom of the coil to sit on. Which does your's have?
The 66 and 67 diffs should be identical except for this mounting pad.
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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars
I wish the parts book had casting numbers but it doesn't. Does the Chevy by the Numbers book list it that way? I have no doubt it is correct, I had just never heard that before.
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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars
I wish the parts book had casting numbers but it doesn't. Does the Chevy by the Numbers book list it that way? I have no doubt it is correct, I had just never heard that before.
For some reason my book is lacking the casting numbers for the diff's housing's. It list a few but not in detail, but goes more in detail on the decoding of the buildcodes. It does say there is a casting date you should compare with the build date. There must be a casting date on it. That and the style of spring purch should help.
Chevy by the numbers has casting numbers up the wazoo but comes to the diff and kind of lame.
wonder if GM7 the 7 meaning the year of casting ?
-- Edited by Beaumont4008 on Wednesday 8th of April 2009 05:54:21 PM
-- Edited by Beaumont4008 on Wednesday 8th of April 2009 05:56:19 PM
I see the KT code in the book for 66 as well. Is there some way to tell if it's 66 or 67 by the date code? I have never seen that listed anywhere if there is.
The 66 should have a flat pad with a bolt hole in the center where the bottom of the coil spring sits. The 67 has a raised mound for the bottom of the coil to sit on. Which does your's have?
The 66 and 67 diffs should be identical except for this mounting pad.
CHECKED LAST NIGHT, HAS THE RAISED MOUNTS FOR THE SPRINGS. MEASUREMENT IS 54 1/4".
I wish the parts book had casting numbers but it doesn't. Does the Chevy by the Numbers book list it that way? I have no doubt it is correct, I had just never heard that before.
good job GP
