Forum Discussion
Biggyniner
Nov 01, 2013Explorer
enblethen wrote:
Depends on chassis.
P series 1999-2002 have a 4L80-E 4 speed, 2003 has the 4L85-E
W series has the Allison LCT 1000 5 speed.
Is there a way I can tell from the VIN? I'm pretty sure its the 5 speed as on the tree it has 1 2 3 and then D with an O around it, so I am assuming that 4 is D and the O is 5 / overdrive?
I would assume that if it is a 4 speed it would say 1 2 D then an O around that?
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