3.42 Rear End Difference Question
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Instructor
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From: Greenville, South Carolina Drive It Like You Stole It !!!
St. Jude Donor '05
3.42 Rear End Difference Question - What's the Difference ???
I just purchased a 3.42 2001 Z06 Rear End (Diff.) with 15K miles from a Corvette Forum Member at a Very Reasonable Price. The part # off the Rear End is 12561853. Like I said before, He stated it came off a 2001 Z06 with 15K miles. The current part # for a Z06 Rear End is 12572683. My Question is - What is the difference and will this Rear End fit on my car. I own a 2002 LS1 A-4 with a 2.73 Rear End and bought this one as a performance upgrade....I also plan on installing a Yank SS3600 TC at the same time I do the Swap.......Why did the part # change and is this Rear End as good as the current part # - Is it shot peened and is it compatable with my current set up on my car ( Will it Fit/Work !!!).....Any Expert knowledge would be greatly appreciated !!! Thanks John 
Last edited by 10-42 Cop; Mar 7, 2005 at 09:49 PM.
Instructor
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From: gaithersburg MD
I can't answer your technical questions but I can say that "Boy are you going to have fun" with that setup. I recently installed a 3.42 rear IN MY 02 and threw in a 2800 TC and man does she rock!! It is truly another animal with the 3.42 gears. I don't know why Chevy even degrades the Vette by putting in those sorry 2.73 (granny) gears. P.s. Be careful, mod fever will only be enhanced by the mod you plan.
I've since installed milled/ported/polished Z06 heads, a CNC 226/114 CAM, TPIS throttle body, low temp thermostat and an LS1 Dynotune (Edit)........... I digress!! This is about your mods............. enjoy!!!!!!
I've since installed milled/ported/polished Z06 heads, a CNC 226/114 CAM, TPIS throttle body, low temp thermostat and an LS1 Dynotune (Edit)........... I digress!! This is about your mods............. enjoy!!!!!!
Thread Starter
Instructor
Joined: Nov 2004
Posts: 210
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From: Greenville, South Carolina Drive It Like You Stole It !!!
St. Jude Donor '05
I digress!! This is about your mods.............
No, I appreciate it.....I can't wait to install all of it !!!!! As far as the Mods addiction.....I'm already hooked.....I love my car and this is so much fun !!! I appreciate all facts, opinions, and data....Thanks to all forum members for taking time to help !!!!
No, I appreciate it.....I can't wait to install all of it !!!!! As far as the Mods addiction.....I'm already hooked.....I love my car and this is so much fun !!! I appreciate all facts, opinions, and data....Thanks to all forum members for taking time to help !!!!
Safety Car
Joined: Jun 2003
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From: Sunshine State
Originally Posted by HotLaperC5
I don't know why Chevy even degrades the Vette by putting in those sorry 2.73 (granny) gears.
I've since installed milled/ported/polished Z06 heads, a CNC 226/114 CAM, TPIS throttle body, low temp thermostat and an LS1 Dynotune (Edit)........... I digress!! This is about your mods............. enjoy!!!!!!
I've since installed milled/ported/polished Z06 heads, a CNC 226/114 CAM, TPIS throttle body, low temp thermostat and an LS1 Dynotune (Edit)........... I digress!! This is about your mods............. enjoy!!!!!!
Bob
Melting Slicks
Joined: Jun 2001
Posts: 2,743
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From: Davie Florida
Originally Posted by 10-42 Cop
I just purchased a 3.42 2001 Z06 Rear End (Diff.) with 15K miles from a Corvette Forum Member at a Very Reasonable Price. The part # off the Rear End is 12561853. Like I said before, He stated it came off a 2001 Z06 with 15K miles. The current part # for a Z06 Rear End is 12572683. My Question is - What is the difference and will this Rear End fit on my car. I own a 2002 LS1 A-4 with a 2.73 Rear End and bought this one as a performance upgrade....I also plan on installing a Yank SS3600 TC at the same time I do the Swap.......Why did the part # change and is this Rear End as good as the current part # - Is it shot peened and is it compatable with my current set up on my car ( Will it Fit/Work !!!).....Any Expert knowledge would be greatly appreciated !!! Thanks John
Team Owner
Joined: Apr 2001
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From: S.W. Ohio. . . . . . NRA Life Member
from my web page: http://mikemercury.home.att.net/342.htm
3.42 carrier non-Z06 GM #12551769
Z06 3.42 carrier GM #12572683
.
3.42 carrier non-Z06 GM #12551769
Z06 3.42 carrier GM #12572683
.
Last edited by Mike Mercury; Mar 8, 2005 at 02:38 PM.
Drifting
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From: Howell MI.
Rodney is the Man
Rodney Massengale
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E-mail Address(es):
camren@insightbb.com
Personal Information:
Phone: 765-524-5341
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Thread Starter
Instructor
Joined: Nov 2004
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From: Greenville, South Carolina Drive It Like You Stole It !!!
St. Jude Donor '05
Originally Posted by blktie8
Rodney Massengale
E-mail Address(es):
camren@insightbb.com
Personal Information:
Phone: 765-524-5341
E-mail Address(es):
camren@insightbb.com
Personal Information:
Phone: 765-524-5341
Just got off the phone with Rodney - You are right he is the Man !!!!
The Rear End I bought is definitely a 2001 Z06 Rear End - He advised they changed the part # in 2002.....It is the same Rear End as current Z06 and is shot peened....I feel alot better now and can't wait to install it.....Thanks to Rodney and blktie8 for the expert information
John