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RPM stage 4 diff vs. RPM stage 3 Z06 diff

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Old 10-29-2013, 05:46 PM
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ATLS2
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Default RPM stage 4 diff vs. RPM stage 3 Z06 diff

I'm highly considering doing the 4l65 swap in my a6 Corvette, but I'm not sure if the stage 3 Z06 differential would be better then the stage 4 regular differential. To be honest, I'm not even sure if the Z06 diff would mate up with the 4l65 transmission. Does anybody have any insight on this?
Old 11-01-2013, 12:43 PM
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irok
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Default will mate up

Originally Posted by ATLS2
I'm highly considering doing the 4l65 swap in my a6 Corvette, but I'm not sure if the stage 3 Z06 differential would be better then the stage 4 regular differential. To be honest, I'm not even sure if the Z06 diff would mate up with the 4l65 transmission. Does anybody have any insight on this?
the Z06 diff will mate up to the 4L65E once you swap the mainshaft in the 4L65E to 30 spline from 27
Old 11-01-2013, 06:20 PM
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stanger383
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St. Jude Donor '09

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answer is yes... RPM has a special cross breed shaft and adapter plate made to mate them. The Z diff is great as long as you can live with the 3.42s. I have the stock Z diff and it is holding up to 1.28-60s

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