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Discussion Starter · #1 ·
How can I tell if my 03 2500 is a high output? Also, were the 03's 47 or 48re? Thanks.
 

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Look at the sticker on the drivers side of the valve cover. It will have horse power rating and build date.

Transmission in 2003 depends upon engine HP rating. Check the Glove Compartment sticker.
 

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Discussion Starter · #4 ·
Thanks, the glove compartment does not say 47 or 48 but I am assuming if its the HO it is a 48 in 03?
 

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Yes, Ho was the 48RE
 
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