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

Dana 36 differences?

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Old May 13, 2005 | 11:09 AM
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Default Dana 36 differences?

As part of my tranny swap I decided to change my leaking Dana 36 with 2.73 to a Dana 36 with 3.07. Everything came out great but when I compared the two units the batwings are a little different. The measurements for all the mounting points are the same but the bracing on the batwing seems to be beefier on the replacement unit. I got the unit used from a local guy who said it was from an 84. Any insight would be helpful. Thanks
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Old May 13, 2005 | 11:13 AM
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All the 36 diffs and and batwings are intechangeable, either as a unit or separately.

RACE ON!!!
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Old May 13, 2005 | 06:05 PM
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86, i'm not sure, but i heard that the IRS on 84's was poorly designed. i'm not sure if they changed the design on later models, but if they did, that might account for the different batwings. once again, this may be bum scoop. see if someone else will confirm or deny this for ya.
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Old May 13, 2005 | 06:45 PM
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Originally Posted by jack the stripper
86, i'm not sure, but i heard that the IRS on 84's was poorly designed.
As I said in the response to the PM you sent me, except for the super stiff rear spring, that still makes the '84 one of (if not THE) best handling C4 ever built, *I* know of no IRS parts that are exclusive to the 1984. The 1984 design is no different than the 1996 design. There ARE some parts differences over the years, though.

RACE ON!!!
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Old May 13, 2005 | 06:57 PM
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Mine is a early 1984 ( #902 ) and mine had the stronger design. I have seen a lot of later Corvettes with the weaker desing.



The dana 44 I installed (top) has the weaker design ... and I think all Dana44 uses that desing.
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Old May 13, 2005 | 08:17 PM
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Originally Posted by JoBy
Mine is a early 1984 ( #902 ) and mine had the stronger design. I have seen a lot of later Corvettes with the weaker desing.
That beefier batwing must be part of the "IRS on 84's was poorly designed" problem.

RACE ON!!!
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Old May 14, 2005 | 12:37 AM
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Nice pics! That one on the bottom is the one I put in the car today. Looks stronger compared to the one from 86.
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