Aluminum Vs. Steel drive shaft difference

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03-01-2009 | 04:37 PM

oil pan 4

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From: High plains of NM

Car: 89 Firebird

Engine: L98

Transmission: T-56

Axle/Gears: 3.73

Aluminum Vs. Steel drive shaft difference

Does any one know the weight difference between the factory steel and factory Aluminum drive shafts?
Or what is your best guess?

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03-01-2009 | 05:09 PM

AlkyIROC

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From: 51°N 114°W, 3500'

Car: 87 IROC L98

Engine: 588 Alcohol BBC

Transmission: Powerglide

Axle/Gears: Ford 9"/31 spline spool/4.86

Re: Aluminum Vs. Steel drive shaft difference

10 pounds? They're not very heavy.

For a high HP vehicle, you're better off with an aftermarket driveshaft. The factory aluminum shaft isn't very strong.

My race car has a 3" x .083" steel driveshaft with 1350 yokes.

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03-01-2009 | 05:37 PM

JamesC

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From: Lawrence, KS

Car: Met. Silver 85 IROC/Sold

Engine: 350 HO Deluxe (350ci/330hp)

Transmission: T-5 (Non-WC)

Axle/Gears: Limited Slip 3.23's

Re: Aluminum Vs. Steel drive shaft difference

This, which should provide an idea, from a search:

16 lbs - Stock steel LT1 driveshaft
12.2 lbs - 3rd gen aluminum 1LE driveshaft
11.5 lbs - Stock aluminum LS1 driveshaft

JamesC

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