C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Dana 44 batwing alternative

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Old Sep 29, 2008 | 06:38 PM
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Default Dana 44 batwing alternative

Heres some food for thought for those of you who are considering a Dana 44 swap into your C4 . I have an adapter plate that allows you to use a D 36 batwing on a D 44......an added benefit is the strength that it adds to the case of the 44 being a 6061 bulkhead to keep the case from spreading

http://forums.corvetteforum.com/show....php?t=2139950
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Old Sep 29, 2008 | 07:14 PM
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I'm not trying to start anything, I just don't understand how it adds strength. Maybe you could explain?
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Old Sep 29, 2008 | 09:16 PM
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Originally Posted by Corvette Chris
I'm not trying to start anything, I just don't understand how it adds strength. Maybe you could explain?
The case and cover are cast aluminum pieces made of 356 alloy....kinda soft relatively-wise....the adapter is CNC machined from 6061 T6 structural material and it acts the same as a bulkhead in a cylinder.....think submarine or tanker truck.....being flat instead of concave like the cover it is far more resistant to stretching or flexing and will HELP keep the rear of the case from moving in any direction in its plane which is perpendicular to the ring and pinion.....both of whom are trying to part company when loaded by the "irresponsible" actions of your right foot and maybe the left one if you have a manual trans.....sorry I got chatty there .....hope I answered your question satisfactorily
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Old Oct 5, 2008 | 03:07 PM
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Default D 44

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Old Oct 5, 2008 | 04:47 PM
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Do you still have to change the c-beam and drive-shaft in any way?
Sorry, but the thread was a little confusing on that.
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Old Oct 6, 2008 | 02:09 PM
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Default batwing

yes, I too am a little confused, what would we need to purchase along with your adaptor to give us a 44 rear.

Thanks
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Old Oct 7, 2008 | 08:12 AM
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Originally Posted by todd_vette
Do you still have to change the c-beam and drive-shaft in any way?
Sorry, but the thread was a little confusing on that.
Yes the driveshaft must be shortened as it would using the D44 batwing...the C-beam has to be re-drilled just as it would using the D44 batwing
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Old Oct 7, 2008 | 08:15 AM
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Originally Posted by todd_vette
Do you still have to change the c-beam and drive-shaft in any way?
Sorry, but the thread was a little confusing on that.
Originally Posted by T. Wayne Nelson
yes, I too am a little confused, what would we need to purchase along with your adaptor to give us a 44 rear.

Thanks
You need a D36 batwing which I assume you already have....and a D44 chunk, pumpkin,or differential without a batwing...........the adapter simply allows you to use a D36 batwing in place of the D44 wing which is not always available with the D44 diff ......complete D36s can be purchased for far less $ than a D44 batwing only

Last edited by C409; Oct 7, 2008 at 08:19 AM.
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Old Oct 7, 2008 | 04:29 PM
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I meant to actually post to this thread and it looks like I ended up in the "C4 parts area" where you've offered them for sale! It requires "thought"!!
I had considered moving those thoughts to this thread but since they've been there for a few hours I'd say there's really not much need to move them.
It won't win any engineering awards but you seem to have "flogged" yours pretty good judging from your comments in the "for sale" post and maybe that's the "testament" to it's value!
It certainly is an "alternative"!!

Last edited by WVZR-1; Oct 7, 2008 at 07:35 PM.
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Old Oct 10, 2008 | 12:49 PM
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Neat idea.

I'm also into Jeeps and have a TJ Rubicon. I'm surprised that
no one has taken a steel diff cover for the conventional D-44
and added control arms and spring mount for the Vette D-44 pumpkin.
I know that bolting on steel where aluminum used to be is counter
intuitive on a Vette, but it could be one more option.
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Old Oct 11, 2008 | 06:37 PM
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Default D44

Obviously there are 100's of options.....currently this is the least expensive....
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Old Oct 15, 2008 | 10:23 PM
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Default D44

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Old Oct 16, 2008 | 06:56 AM
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Originally Posted by C409
Obviously there are 100's of options.....currently this is the least expensive....
I have D44 in my 95 and yes it's expensive and yes it's worth it least ways if you have the power.
Tore up 36's ain't cheap either.
Off road u joints are a must also.
Happy Motoring !
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