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8.1L engine  
exitleft88
New User | Posts: 2 | Joined: 09/08
Posted: 09/02/08
05:39 PM

so i got a 2005 2500hd duramax and was wondering if a 8.1 will bolt up to my tranny. can anyone help me out??  


 
SnoMan
Addict | Posts: 5154 | Joined: 05/04
Posted: 09/02/08
06:17 PM

8.1 and Dmax has same bolt pattern on bell housing. You are going to have tranny calibration issues and will need a different control module for it.  


 
exitleft88
New User | Posts: 2 | Joined: 09/08
Posted: 09/02/08
06:51 PM

thanks. what about engine mounts. would they need to be changed?  


 
FourWheeler Web Editor
Moderator | Posts: 1981 | Joined: 12/06
Posted: 09/03/08
02:39 PM

You will likely need the 8.1 motor mounts.  


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SnoMan
Addict | Posts: 5154 | Joined: 05/04
Posted: 09/03/08
02:45 PM

FourWheeler Web Editor:
You will likely need the 8.1 motor mounts.

Yep...  


 
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