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ZR1 Diff questions??

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Old Dec 3, 2012 | 04:28 PM
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Default ZR1 Diff questions??

I am in the process of getting a ZR1 tranny and diff setup for my C6! I know the trans is fine but what about the diff...should I go ahead and have the hardened shafts installed or is the stock shafts strong enough for some heavy duty dragstrip action! I know it would be best to but money is starting to get tight here around Xmas time LOL!

BTW if anyone is interested I will have my trans and diff for sale soon!
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Old Dec 3, 2012 | 04:38 PM
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What kind and year of diff will you have for sale?
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Old Dec 3, 2012 | 07:09 PM
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Send a PM to Rick@RKT56, he knows everything about that those tranny and rears. Those rears are indestructible!!! The materials used are better then the standard and Z06 rears.

http://rktperformance.com
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Old Dec 4, 2012 | 06:26 AM
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i have a zr1 tranny and diff, definately stronger and better!
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Old Dec 4, 2012 | 09:17 AM
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Oh yeah I know they are definitely stronger as far as the case and gears I was mainly wondering if the 300m or stronger shafts in the diff need to be installed!
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Old Dec 4, 2012 | 09:40 AM
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Although the differentials are strong, nothing is bulletproof. As hard as you launch, the new 300M shafts would be a major upgrade.

Or if money is a concern, just run it until it breaks and then replace both. It's possible that you may not see breakage. ( According to Murphy's Law, breakage occurs at the most inopportune time. )

Last edited by GARY2004Z06; Dec 4, 2012 at 09:46 AM.
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Old Dec 4, 2012 | 01:01 PM
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right on man that's what I was hoping to do
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Old Dec 4, 2012 | 01:25 PM
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Although I think I have been using up all my luck on my current setup as I have an 05 diff in the car right now but it's been flawless and seen multiple 1.4x 60' launches!
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Old Dec 5, 2012 | 01:09 PM
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Holy schit, seriously? 1.4's through an '05 diff behind a 6 speed?


Can you play some Lotto tickets for me if I Paypal you?
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Old Dec 5, 2012 | 03:22 PM
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Originally Posted by SlickShoes
Holy schit, seriously? 1.4's through an '05 diff behind a 6 speed?


Can you play some Lotto tickets for me if I Paypal you?

I even got a 1.38 once....have made two 9 second passes and about 15 6.3-6.4 1/8 mile passes! Unitrax is the company that built the diff they said it shoudnt break LOL this was 3-4 years ago when it was built and I bought it off my friends car when he traded his car in!
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Old Dec 5, 2012 | 06:23 PM
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Originally Posted by GARY2004Z06
Although the differentials are strong, nothing is bulletproof. As hard as you launch, the new 300M shafts would be a major upgrade.

Or if money is a concern, just run it until it breaks and then replace both. It's possible that you may not see breakage. ( According to Murphy's Law, breakage occurs at the most inopportune time. )
THIS^ but like C5RichieRickKid said pm Rick he can answer any questions you have
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Old Dec 5, 2012 | 10:34 PM
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If you can afford the driverside shaft I recommend the upgrade as I can't think of a passenger that has broke being that its shorter, that will keep a little money in your pocket
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