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Old Oct 18, 2006 | 10:16 PM
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73fbody
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From: Washington NJ
Default Gear swap question

Not so familiar with these Getrags and would like to know if the guts are interchangeable like a live axle.Are there different series rear ends like the 2,3 and 4 series rear ends in live axles?
I have a 2.73 diff that I would like to put 3.42 r&p in but want to check before I start gathering parts.
Any info would be greatly appreciated.
Thanks,Joe
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Old Oct 18, 2006 | 11:01 PM
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debmwb
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From: Fort Worth Texas
Default

Originally Posted by 73fbody
Not so familiar with these Getrags and would like to know if the guts are interchangeable like a live axle.Are there different series rear ends like the 2,3 and 4 series rear ends in live axles?
I have a 2.73 diff that I would like to put 3.42 r&p in but want to check before I start gathering parts.
Any info would be greatly appreciated.
Thanks,Joe

It can be done, but only if you have the Getrag tool set (around $1000). A few shops can and have actually done the surgery, but most of us just buy a new transaxle and change the whole shootin' match. BTW, I went from 2.73's to 3.42's and love it!!
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Old Oct 19, 2006 | 07:07 AM
  #3  
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73fbody
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From: Washington NJ
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Originally Posted by debmwb
It can be done, but only if you have the Getrag tool set (around $1000). A few shops can and have actually done the surgery, but most of us just buy a new transaxle and change the whole shootin' match. BTW, I went from 2.73's to 3.42's and love it!!
Thanks,I look forward to doing this.I work at a GM dealer so I have access to the tools and settings/specs.Have also taken one apart and rebuild as part of the drivetrain course at GM training.
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