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GM 4L80E, 4L85E Late Model & Hummer, Deep Transmission Pan
Part Number 9437
|Black powder coating
Volume: 3.25 qts. over stock
Dimensions: Click here for dimensions.
Number of Bolts: 17
This PML pan fits GM and Chevrolet 1997 to 2007 trucks, SUVs, and vans with the 4L80E and 4L85E transmission. Some examples of typical vehicles that this pan can fit are:
Vehicle configurations vary so always check your configuration and clearance before ordering. Some models may require modification of the heat shield.
Earlier model year vehicles will need a pan without a slant to avoid interference with transmission internals. See this extra capacity PML pan for GM 4L80E/4L85E transmissions on early model trucks.
The pan has a boss that can be machined for a temperature sensor.
For Hummer H1: please read these additional instruction tips: PML Part Number 9437 on a Hummer H1 Installation.
Both GM early model and late model 4L80 filters should work with this transmission pan. This PML pan has filter supports to hold the filter in place. A filter extension is not needed.
The installer must verify fitment and installation.
Click on image to view larger.
Cable Bracket on Stock Pan
Some stock pans have a bracket for the shift cable assembly attached to the flange.
Our customer Darrell provided these Guidelines for Modifying the Bracket to work with the PML pan.
Image PML pan installed with bracket modified to fit.
PML Transmission Pan Compared to Stock
These images show this PML transmission pan compared to the stock pan.
1997 Hummer H1
PML GM 4L80 transmission pan installed on a 1997 TD H1 Hummer.
PML also makes differential covers and window switch plate bezels for H1 Hummers. See our Hummer Web Page.
2008 Chevrolet Express Van 3500
Duff installed this PML transmission pan on his 2008 Chevy Express 3500 6.0 van to keep his fluid temperatures down while towing.
2008 Express Van 3500
Stock pan, passenger side view
Stock pan, driver side view
2003 Silverado 3500
Clint installed this PML pan on his 2003 Chevy 3500 4x4 6L. He double tows a 28 foot 5th wheeler and wave runners and pushes snow in the winter. To install, he dropped the cross member and removed the shift linkage bracket to allow access to clean the transmission gasket surface.
After installed the pan Clint emailed us: "Great product, fit perfect and it looks great."
2006 Silverado 1500HD
This installation is on a 2006 Chevy Silverado 1500HD. The images below show the stock pan and the PML pan. To install the PML pan, the heat shield was removed. During the installation, the transmission mounts were loosened to allow easier access. The pan has the as-cast finish.
2005 Avalanche 2500
This transmission pan was installed on a 2005 Avalanche 2500 with the 8.1 engine and 4L85E transmission. This Avalanche is used as a plow truck and general workhorse.
These images show the stock pan, the shift linkage, and the Felpro gasket used with the PML pan (part number TOS 18698) :
The images below show the PML transmission pan installed. The image on the left shows the heat shield next to the PML pan. In the center image, you can see that the shift linkage is really close to the pan. The installer filed off about 1/16" and then bent it out a bit to keep it away from the pan. The last image shows the pan installed before the cross member is put back on. The cross member did not interfere with the pan. The customer removed the cross member to replace his transfer case.
Here are the installation notes from the Avalanche owner:
It's a tight fit but fits fine. I didn't remove the heat shield (no need). The shield on this vehicle is on the right side and is also part of the exhaust hanger. You can't remove the entire thing (as it is the hanger) but you can cut the spot welds to remove the shield but there was no point as it isn't hitting (slightly bent the shield by hand to make sure I had plenty of clearance).
After driving 600 miles with the PML pan installed, this customer emailed us again to say "Works great, no rubbing of any kind or no noises." He used Amsoil synthetic transmission fluid. Temperature of the fluid does not go over 200 even when plowing heavy snow for long periods.
PML Transmission Pan Features
All PML transmission pans ship with new mounting bolts and a magnetic drain plug.
If you would like PML to machine your pan for a temperature sending unit, there is an additional charge of $45 .
Learn more about finishes and construction of PML parts.
For a larger picture, please click on one of the above images. A separate window or tab will open showing a bigger picture. (The larger pictures take a minute to display.)
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