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[Z06] How’s the 4.10s and 3.90s.....

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Old 07-03-2018, 06:02 PM
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Default How’s the 4.10s and 3.90s.....
Thinking of this as my next mod when I get this car done has anyone had any issues with them yet? Since this build is staying NA primarily for now I wanted to make my c6z light as possible and make as much power with a 11:1 427 ls7. Was thinking of running 26 inch tires with 4.10s at 600whp+ I cant imagine the feel of it when it hooks.
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Old 07-03-2018, 10:56 PM
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Been running 4.10s since 2009 and it is a great all around mod.
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Old 07-03-2018, 11:17 PM
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U want regret it one of best mod for a manual vette
Last edited by Last 1; 07-04-2018 at 07:25 AM. Reason: changed.
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Old 07-05-2018, 12:13 PM
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Originally Posted by GARY2004Z06
Been running 4.10s since 2009 and it is a great all around mod.

with the base rear end?
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Old 07-05-2018, 12:14 PM
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Originally Posted by Last 1
U want regret it one of best mod for a manual vette

ill be be doing one soon forsure 4.10a in my dads old 68 RT charger was fun
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Old 07-05-2018, 02:24 PM
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Originally Posted by 427V8BB



with the base rear end?
I ran an upgraded base C6 diff since there were no 4.10s available for my Z at that time.
Finally there are gears for the C6Z.
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Old 07-05-2018, 04:53 PM
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Originally Posted by GARY2004Z06
I ran an upgraded base C6 diff since there were no 4.10s available for my Z at that time.
Finally there are gears for the C6Z.
Are C6 Z gear swaps from RPM Transmission? Did you send in a stock Z core diff and get the new gear diff ?
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Old 07-06-2018, 07:37 AM
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Originally Posted by Silver Bullet C6
Are C6 Z gear swaps from RPM Transmission? Did you send in a stock Z core diff and get the new gear diff ?
I had RPM Transmission build me a couple Upgraded Base C6 differentials with 4.10s.
I did not send in my OEM C6Z diff to them.
As for C6Z gear swaps, you can use RPM Transmissions or other reputable shops like RKT Performance that specialize in manual transmissions and differentials.
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Old 07-06-2018, 07:45 PM
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Should of been an option back in the day, I still get over 20 MPG with my 4.10's and I like them.
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Old 07-07-2018, 03:05 PM
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Originally Posted by Mike44665
Should of been an option back in the day, I still get over 20 MPG with my 4.10's and I like them.
I want some baddd how much does a set cost if I brought it to a place like Abel Chevrolet just the differential
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Old 07-07-2018, 09:16 PM
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Where are you located? I would suggest RKT Performance, I drove there on a Saturday, sat/slept in the parking lot, and drove home with mine. I have no idea how busy he is at this time of year.
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Old 07-08-2018, 11:25 AM
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Originally Posted by Mike44665
Where are you located? I would suggest RKT Performance, I drove there on a Saturday, sat/slept in the parking lot, and drove home with mine. I have no idea how busy he is at this time of year.

94563 NorCal hoping Abel Chevrolet does this type of stuff
Last edited by 427V8BB; 07-08-2018 at 11:25 AM.
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