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Old 12-31-2012, 01:50 PM   #1
Mchlgrrsn
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ZL1 swap or aftermarket rear end

I have had many upgrades to my car and I've toasted 2 rear ends. I was hoping for some advice. I can switch swap to a ZL1 rear or go with the unlimited aftermarket choices. I have apox 620 rwhp and matcjing torque. Any suggestions would be welcomed
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Old 12-31-2012, 01:51 PM   #2
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sorry for the big signature cant figure out how to get rid of it
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Old 12-31-2012, 07:36 PM   #3
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What's the cost for each option? You have to look at the cost:benefit ratio of each package. There are a number of modified ZL1s running ~700 RWHP with no reported failures that have been seriously beat on in testing.
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Old 12-31-2012, 07:44 PM   #4
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Quote:
Originally Posted by Mchlgrrsn View Post
I have had many upgrades to my car and I've toasted 2 rear ends. I was hoping for some advice. I can switch swap to a ZL1 rear or go with the unlimited aftermarket choices. I have apox 620 rwhp and matcjing torque. Any suggestions would be welcomed
So you already have TOASTED 2 REARENDS , it's time for you to cal KREMER SInfield show , The ASS DR
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Old 12-31-2012, 07:49 PM   #5
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Quote:
Originally Posted by Mchlgrrsn View Post
I have had many upgrades to my car and I've toasted 2 rear ends. I was hoping for some advice. I can switch swap to a ZL1 rear or go with the unlimited aftermarket choices. I have apox 620 rwhp and matcjing torque. Any suggestions would be welcomed
2 stockers?
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Old 12-31-2012, 08:47 PM   #6
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Zl1 rear is under 4k. Looks like after market is 6k plus. I put 4:10 gears in right away toasted the gears at 500hp with a nice 6500 shift into third. I replaced with same gears didn't shift at 6500 anymore. Upgraded the motor to 630 and after a few months the rear is shot.
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Old 01-01-2013, 10:56 AM   #7
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If I were you I would install factory ZL1 subframe and rear including axels etc. Not sure of cost byt under 5K. Aftermarket gears do not have a very good reputation. The factory ZL1 ratio is 3:70. Good Luck
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Old 01-01-2013, 12:28 PM   #8
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I agree. Having trouble securing all the parts from GM. That's why I have been investigating aftermarket stuff. Gm says they sell it as a package but I can't find it anywhere but can order all the individual parts but some parts aren't available.
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Old 01-01-2013, 07:12 PM   #9
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Zl-1 or LPE is my vote!

Don't ask me what order
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Old 01-01-2013, 08:16 PM   #10
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Any gear ratio suggestions ? I hear 4:10 and boost don't mix well ? About drive shafts, is it worth to get a single piece and is it worth it to get carbon fiber? Thanks
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Old 01-05-2013, 04:52 PM   #11
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In case anyone goes down the same road. Zl1 rear isn't available until may. I couldn't wait because rear is shot. DSS makes a good rear.
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