Flexplate Housing Differences?

[the_engineers]

Are all Duramax flexplate housings the same (e.g. Allison, 4L85E)?

I'm putting an Allison where a 4L85E used to be and don't want to wait until the trans is in the air to find out differently.

Thanks!

 

[Mike L.]

There are 4 different ones depending on cooler line size and input speed sensor.

 

[malibu795]

Flex plate where the TC bolts to IS different between Allison and 4L85
Mounting and TC bolt circle ate identical
This was a flexplate for a 4l85.. the Allison is thicker and has one less step than the 4l85 version

 

[the_engineers]

Malibu - Good to know. I'll add an Allison flexplate to my shopping list.

Mike L - I'm going to have to bend up new cooler lines, so I'm pretty open on that. I thought the input speed sensor was in/near the bellhousing. I've got a 2006 Allison. I'm looking for the piece between the block and bellhousing. Are there 4 different versions of that?

Where can I find them listed? I'm 2006 motor to 2006 trans...

 

[Mike L.]

Malibu - Good to know. I'll add an Allison flexplate to my shopping list.

Mike L - I'm going to have to bend up new cooler lines, so I'm pretty open on that. I thought the input speed sensor was in/near the bellhousing. I've got a 2006 Allison. I'm looking for the piece between the block and bellhousing. Are there 4 different versions of that?

Where can I find them listed? I'm 2006 motor to 2006 trans...

That should be the same.

 

[the_engineers]

Flex plate where the TC bolts to IS different between Allison and 4L85
Mounting and TC bolt circle ate identical
This was a flexplate for a 4l85.. the Allison is thicker and has one less step than the 4l85 version

I talked to a GM dealer. They show GM 97372295 as the part number for both the 4L85E and the Duramax. I plan to use a fresh set of bolts, but it looks like I'm good to go on the flexplate.

 

[malibu795]

I talked to a GM dealer. They show GM 97372295 as the part number for both the 4L85E and the Duramax. I plan to use a fresh set of bolts, but it looks like I'm good to go on the flexplate.

Gm Could have updated everything..

 

[1FastBrick]

I talked to a GM dealer. They show GM 97372295 as the part number for both the 4L85E and the Duramax. I plan to use a fresh set of bolts, but it looks like I'm good to go on the flexplate.

Thanks for the part number. :thumb:

I looked it up trying find the Plate and didn't realize it was included. Now I don't have to hunt for it. I attached a break down of what's included.