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Diff swap

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Old Jan 8, 2022 | 07:04 PM
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Default Diff swap

Looking for some guidance or maybe suggestions.
recently swapped out my blown 05 diff for a 06+ DTE stage 3, 3.42 differential. I did swap out the tail housing to mate with a T-56, and it is a m6.
however the input shaft is smaller than the splines inside the differential itself.
I’ve read it was supposed to be a plug and play but now I’m stuck.


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Old Jan 8, 2022 | 07:31 PM
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Wrong pinion gear. Later trans had a larger output shaft and corresponding pinion gear. You need a diff that has the smaller style pinion gear, or change the trans output shaft or replace the trans with the large shaft..
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Old Jan 9, 2022 | 12:59 AM
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Originally Posted by 3X2
Wrong pinion gear. Later trans had a larger output shaft and corresponding pinion gear. You need a diff that has the smaller style pinion gear, or change the trans output shaft or replace the trans with the large shaft..
any links for that bigger input shaft?
def don’t wanna get a new transmission prolly be beneficial but to much for cost
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Old Jan 9, 2022 | 07:37 AM
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The output shaft of the trans would need to be changed to the larger spline output shaft. At this point, see if DTE will swap the rear for one that fits your trans. Usually the large shaft diffs are GS, Z06, and ZR1 diffs. Also make sure the half shafts are correct for your diff.
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Old Jan 9, 2022 | 09:30 AM
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Sadly, I believe DTE is out of business. Their old website shows the domain is available......
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Old Jan 9, 2022 | 09:25 PM
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Originally Posted by grinder11
Sadly, I believe DTE is out of business. Their old website shows the domain is available......
Talk to RPM Transmissions
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