diffs. in V/B's for 4l80e
 

i have a spare 2004 4L80E i want to build as a spare over the winter, but robbed the v/b out of it to put in my current 2004 trans i built (switched from full manuel to auto, installed the HD-2 kit) i need another v/b for the other trans, but most of the ones i find are for pre 2004, something changed, not sure what, and wonder how you tell its a 2004 up, so i dont get the wrong one, if i can find one-thanks
if i had to, i could switch out the v/b's, but rather have a whole one ready to go, if needed

Any valve body from a 97 and later unit will work. The only change is the epc solenoid. Vince Bielanski

i hate to sound stupid, but im used to it, even though i built my own trans, what is the epc sol.?-is it called something else? my repair man. doesnt list anything with that name, but my parts book shows a repair sol. for it
i thought 2003 back have a diff. temp sensor, the 2004 uses it in the wiring harness, but thought you could block the early sensor hole and use the later harness
i replaced all the sols. and wiring in the trans i built, 4 i believe, 2 shifter and TCC and force mtr, just didnt see anything epc, unless its the pressure switch
thanks

whoops, never mind, found out its the force motor, funny the book never referred it as EPC