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4L80E interchange

18K views 8 replies 7 participants last post by  Benttube 
#1 ·
Tranny went out of my daily driver (2004 2500 HD 6.0 chevrolet). I have a very low milage 4L80E out of a 2005 2500 HD. A salvage yard interchange book said the two would not interchange. The two trannies look the same one is marked 4 BSP the other 5 BSP. Can anyone tell me the difference? Both trucks also have the MT1 option code in the glove box and both trucks are 4x4. Thanks
 
#2 ·
take this with a grain of salt.


but i manage a snow removal fleet that has 11 2500hd chevys between 1999-2007classic

the guy who builds our trans told me if i wanted a spare they would all interchange, there are just minor internal changes through out the years. Now im not 100 percent on this but i would think maybe the only difference would be a electric plug possible for the neutral safety stuff possibly.
 
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