NMBruce
SILVER Star
I know beginning with 2007 model they moved the center diff switch to that piece which resulted in 1 more switch location there, that could be the difference? When I get home I'll pop the actual piece off and see if there's a number on it.
thanks, I really don't see any difference in the description and I am not sure looking at the part will make a difference since they have the same number. I will call them and see what I can find
55446A

$21.21 5544660050

55446A

$26.47 5544660040
