I am trying to fit a 4L80E from an '05 Savanna van on an '04 LQ9 from a Silverado SS, but it does not fit. Several members have suggested I need a 4L80E flexplate, but now my local Chevy dealer (and GMPP distributor) tells me there are 3 different 4L80E flexplates and they cannot tell me which will work... HELP!!! does anybody know which flexplate I need? there must people here who have put together these trans and engine! Can someone help in some way? If needed, I can give you the VIN from both vehicles.

 

you will need the flexplate and spacer. I dont have the part numbers handy but im sure some one will chime in.

 

When I bought my flexplate I think I told them it was from an 05 2500HD with the 6.0L. I'm not sure what the differences are....I thought an 80E flexplate was an 80E flexplate. The only difference I have ever seen between them was that some are flat and require the spacer and some are dished and do not.

 

someone link my gm part number thread here... a few pages back from the newest i gave the number for spacer and flexplate... someone please link it... im too damn lazy right now!!!

 

Flexplate 12551367 must use spacer 12563532 when replacing Flexplate