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Ok, right now I am on alpha 9 with stock internal and stock tranny. But my clutch is slipping.
I have to upgrade my tranny and I wanna know what is the best option to upgrade my tranny and what shop can do it.
If any shop can send me a quote with the different stages
.

Also I'm considering to upgrade my alpha 9 to a alpha 10 or something similar. My power gaol is between 850awhp and 900awhp on a mustang dyno.

Thanks for your help.

BTW
If any shop can send me a quote with the different stages
 

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yea most shops use shep as well. Might as well just start there.. i know he is building like 20 of them currently for a bunch of shops and people. He is probably the most experienced when it comes to the GR6
 

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Sean Ivey built mine.

Quick turn around and great customer service
 

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yea most shops use shep as well. Might as well just start there.. i know he is building like 20 of them currently for a bunch of shops and people. He is probably the most experienced when it comes to the GR6
For clarification, Forged builds it's transmissions entirely in house now, and very fast turnaround time, using the best Dodson parts.
 
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