OE 3.42 RE vs. Rebuilding my 2.73 RE (w/ 3.42s)

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Apr 10, 2011 | 02:04 PM

#16

FirstYrLS1Z

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Joined: Jul 2005

Posts: 424

From: Euclid,Ohio

Re: OE 3.42 RE vs. Rebuilding my 2.73 RE (w/ 3.42s)

150,000 miles on your original Auburn 'posi',it's probably wore out beyond capable of acting as a 'posi'.

Apr 10, 2011 | 02:11 PM

#17

FirstYrLS1Z

Registered User

Joined: Jul 2005

Posts: 424

From: Euclid,Ohio

Re: OE 3.42 RE vs. Rebuilding my 2.73 RE (w/ 3.42s)

series 2 accomodates the large pinion size of 2.73s' and 3.08s',series 3 gearsets don't have the large pinion size so they were able to move the carrier flange closer to the pinion centerline.

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Apr 11, 2011 | 12:23 AM

#18

aaron_depue

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Joined: Mar 2004

Posts: 283

Re: OE 3.42 RE vs. Rebuilding my 2.73 RE (w/ 3.42s)

OK. When I buy a new posi unit, I just need to buy a Eaton posi with the series 3 carrier and buy the gear set that matches the series 3 posi....

Apr 11, 2011 | 05:24 AM

#19

Injuneer

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Joined: Nov 1998

Posts: 71,098

From: Hell was full so they sent me to NJ

Re: OE 3.42 RE vs. Rebuilding my 2.73 RE (w/ 3.42s)

Sure. By the time you get it installed, you will have a $1,000 investment in a weak design 10-bolt rear. The posi will be strong, but its still running a scrawny 7.5" ring gear.

Apr 12, 2011 | 02:11 PM

#20

aaron_depue

Thread Starter

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Joined: Mar 2004

Posts: 283

Re: OE 3.42 RE vs. Rebuilding my 2.73 RE (w/ 3.42s)

Quote:

Originally Posted by Injuneer

Sure. By the time you get it installed, you will have a $1,000 investment in a weak design 10-bolt rear. The posi will be strong, but its still running a scrawny 7.5" ring gear.

The weak design + the 20% added strength from the mods....Im hoping that it will stay together since i will be running street tires.

A Ford 9" would be nice tho