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rear end 1979 trans am

 
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cwagner45



Joined: 03 Dec 2010
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PostPosted: Sat Dec 04, 2010 3:30 pm    Post subject: rear end 1979 trans am Reply with quote

i reciently changed the rear end from a 2.42 gear ratiol to a3.08 installed anew carrior bearings wheel bearings and axels but the car doesnt have the punch it had with thi old rear end what went wrong ? cherles wagner
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Larry
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Joined: 01 Jun 2006
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PostPosted: Sat Dec 04, 2010 9:25 pm    Post subject: Rear Gears Reply with quote

The ratio change you made was not very drastic, so a great improvement might not be too noticable. But to say it is not as good as the older, higher ratio (yes, the smaller number is higher) is odd.

Did you install taller tires with the new rear end? That might make it seem slower.

Perhaps your expectations were too high over this change. Only a good set of numbers (times and speed) with the two ratios would tell the real story.

I went from 2.52 (2.72?? I forget) to 3.23 in my Lemans a long time ago and was equally sad over the performance change I had expected. It was only when I went to a 2800 stall converter that I got the ZIP I had been hoping for.

I don't think you did anything wrong... couldn't imagine what.

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