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

rear end Differential

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Old Aug 24, 2004 | 02:27 PM
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Default rear end Differential

how much hp can a 87 rear end hold up to .and if it cant hold to much who makes aftermarket.
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Old Aug 24, 2004 | 02:33 PM
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That's a good question... a lot depends on your transmission.

The automatics got the Dana 36 (D36) rear... it won't hold much.

The manuals got the Dana 44 (D44) rear... it will hold a lot more.

For reference, the D44 is also used in the Viper.
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Old Aug 24, 2004 | 02:58 PM
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Ran my D36 for two years on slicks down to low 1.6s.

Ran my D44 for two years at very low 1.5s and now 1.4s.

Recently went to a spool for the D44, which is working GREAT. Barely noticable for street driving, and works unreal for the strip. Not 100% necessary, but nice piece of mind knowings its in there.
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