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auto OD swap? or Gear change?

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auto OD swap? or Gear change? - 2/24/2008 7:07:58 PM   
speedracer7291

 

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Hi all I am trying to figure out if I swap my trans with a 700 r4 OD unit what else do I need? I heard the driveshaft needs to be cut or does any company sell these already done? Or am I better off taking the 456 gears out of my 12 bolt posi and get 3 73's ? What rpm does 373 run at 65mph?



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Bryan
69 camaro 350 v8 th350 12 bolt 456 posi rear
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RE: auto OD swap? or Gear change? - 2/25/2008 9:39:34 AM   
1969 SS

 

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with a 255/60/15 in the rear, and 3:73s I as running about 3,000RPM at regular highway speeds. overdrive is definitely the way to go.

as far as the driveshaft goes, just go to you local drivetrain specialist shop and they can cut yours to fit. they will tell you how to measure for it, and it will be a lot cheaper than a new shaft. you are better off having yours cut because when it comes to old cars, they are all a little different, so there really isn't anything too standard about them

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(in reply to speedracer7291)
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RE: auto OD swap? or Gear change? - 2/25/2008 11:29:39 AM   
Camaro 69


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quote:

ORIGINAL: speedracer7291
What rpm does 373 run at 65mph?

Need your overall rear tire diameter to figure exactly.
Overdrive gives you the best of both worlds.

(in reply to speedracer7291)
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