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

Rear end gear help

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Old May 28, 2007 | 12:20 PM
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Default Rear end gear help

Im going to put my `87 D44 rear suspension up for sale soon so I need to figure out what gear ratio I have in it. How do you do this? I know there`s some numbers somewere I just can`t remember were
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Old May 28, 2007 | 01:03 PM
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Numbers should be on the bottom surface of the carrier at the cover mounting flange.

Hope that helps you
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Old May 28, 2007 | 01:42 PM
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If you are not the original owner you need to spin the driveshaft to check for sure. The amount of times it rotates before the wheel goes completly around will tell you what ratio you have.
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Old May 28, 2007 | 01:47 PM
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St. Jude Donor '04-'05-'06-'07
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If it's got the original ring and pinion and it came out of an '87 originally, it will be a 3.07. Counting the input to output turns as mentioned above will tell the tale. All '85 through '88 cars with the 4+3 transmission came with a D44 3.07.
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Old May 28, 2007 | 01:47 PM
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If you have it out. Count the teeth on each gear, divide the larger gear by the small.
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Old May 28, 2007 | 01:51 PM
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May have spoke too soon. I see you dont have it dissasembled. Go with counting the turns and pick the nearest standard ratio to it. with the guy up there probably 3.07.
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Old May 28, 2007 | 07:58 PM
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Originally Posted by Corvette Kid
If it's got the original ring and pinion and it came out of an '87 originally, it will be a 3.07. Counting the input to output turns as mentioned above will tell the tale. All '85 through '88 cars with the 4+3 transmission came with a D44 3.07.
thanks
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Old May 28, 2007 | 08:15 PM
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You don't need to check the ratio. Just sell it to me for cheap. I don't care what the ratio is.

RACE ON!!!
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Old May 28, 2007 | 08:30 PM
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Originally Posted by CFI-EFI
You don't need to check the ratio. Just sell it to me for cheap. I don't care what the ratio is.

RACE ON!!!
Get in line old guy, I was here first!
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Old May 28, 2007 | 09:06 PM
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I will post it in the for sale thread when it is time. It will be the complete rear suspension for sale.
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