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70 diff on a 72 Corvette

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Old May 25, 2011 | 07:14 AM
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Default 70 diff on a 72 Corvette

Can I put a 70 diff (2CAM 3 3 70 W) 0n a 72 corvette-350/350???
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Old May 25, 2011 | 07:27 AM
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Yes
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Old May 25, 2011 | 07:33 AM
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Yes, all 65-79 rears are basically the same.

63-64 rears fit, but are different internally.
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Old May 25, 2011 | 07:39 AM
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Thanks.
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Old May 25, 2011 | 07:55 AM
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Originally Posted by gbvette62
Yes, all 65-79 rears are basically the same.

63-64 rears fit, but are different internally.
Really? What's different about them?

I have a '63 rearend in my '69 right now.
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Old May 25, 2011 | 08:00 AM
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Default Pictures of changing rearweel bearings?

Has anybody pictures of change of rearweel bearings,what i have heard is a big job!?!?
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Old May 25, 2011 | 10:45 AM
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Originally Posted by sijvette
Can I put a 70 diff (2CAM 3 3 70 W) 0n a 72 corvette-350/350???
Only difference may be the pinion flange. If the 70 diff came from a 4 speed car you will have to change the flange or get a conversion u-joint.
Mike
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Old May 25, 2011 | 11:11 AM
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Originally Posted by bashcraft
Really? What's different about them?

I have a '63 rearend in my '69 right now.
The 63-64 posi unit, ring and pinion, etc. are different. The 63-64 is a Dana unit, while 65-79's use an Eaton. There are very few parts available for a 63-64 rear, but they can be updated by installing 65 up components in them.

Originally Posted by tracdogg2
Only difference may be the pinion flange. If the 70 diff came from a 4 speed car you will have to change the flange or get a conversion u-joint.
Mike
If need be, he should be able to reuse the front flange, from his existing rear.
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Old May 25, 2011 | 11:38 AM
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Originally Posted by gbvette62
The 63-64 is a Dana unit, while 65-79's use an Eaton.
Sorry to hijack the thread, but one more question. Is one stronger than the other?
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Old May 25, 2011 | 11:42 AM
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The 63-64 Dana unit is very weak. Odds are it has already been changed out with an eaton unit.
Mike
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Old May 25, 2011 | 12:13 PM
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Originally Posted by tracdogg2
The 63-64 Dana unit is very weak. Odds are it has already been changed out with an eaton unit.
Mike
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Old May 25, 2011 | 12:18 PM
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Originally Posted by tracdogg2
The 63-64 Dana unit is very weak. Odds are it has already been changed out with an eaton unit.
Mike
So if mine has held up behind a zz502 for the last 2 years, it's safe to assume that it's been changed out?
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Old May 25, 2011 | 01:43 PM
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There's no way the Dana unit could handle a 502.
Mike
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Old May 25, 2011 | 02:08 PM
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Originally Posted by tracdogg2
There's no way the Dana unit could handle a 502.
Mike
Thanks!
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