Volume: 3.75 qts. over stock
Dimensions: Click here for dimensions.
Number of Bolts: 17
PML designed this transmission pan for GMC and Chevrolet 1990 to 1996 model year trucks and SUVs with the 4L80E and 4L85E transmission.
- Extra capacity, 3 3/4 quarts over stock
- Drain hole and magnetic drain plug for easy fluid changes
- Finned for cooling
- Heavy duty sand cast aluminum construction
- Machined flat gasket sealing surface
- Can optionally be machined for a temperture sending unit
Typically, these vehicles have a 4L80E or 4L85E transmission and can use this PML transmission pan:
- C2500 1990 to 1996 with 454, 6.2 & 6.5 diesel engines
- K2500 1990 to 1996 with 454, 6.2 & 6.5 diesel engines
- C3500 1990 to 1996 with 454, 6.2 & 6.5 diesel engines
- K3500 1990 to 1996 with 454, 6.2 & 6.5 diesel engines
- Suburban 1992 to 1996 with 5.7, 454, 6.2 & 6.5 diesel engines
- 1997 and newer vehicles with clearance
Vehicle configurations vary. Always verify your transmission and clearance.
Many 1997 and newer vehicles have the frame cross member running under the rear of the stock pan and do not have enough clearance for this pan. See PML Part Number 9437 for a transmission pan that clears the frame.
PML Part Number 9437 will not clear the transmission internals on 1990 to 1996 transmissions.
PML also makes a less deep for GM cars with these transmissions.
Our thanks to those who have emailed us pictures of their installations.
- 2004 Airstream
- 1998 Safari Trek Motorhome
- 1997 K3500
- 1995 Suburban
Dan installed this PML transmission pan on his 2004 Airstream Motorhome with a 4L85E. He said the pan fit beautifully other than a slight contact point with the frame at the rear. A little bit of grinding fixed it.
1998 Safari Trek Motorhome
David installed this transmission pan on his 1998 Safari Trek motorhome with a 454 engine and a 4L80E transmission. He also has a Gears Vendors over drive installed. He tows a 3500 lb trailer and had blown 2 transmission in 60,000 miles before installing this PML pan.
David reported that the isntallation was "really simple". He drilled and tapped the pan himself for a temperature sending unit. The first hole was too low so he had to make a second hole.
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Citation for picture: By David Lippincott https://en.wikipedia.org/wiki/Robinson_R22#/media/File:R22-Trailered.jpg, CC BY-SA 3.0, https://mg.wikipedia.org/wiki/Wikipedia:CC-BY-SA_3.0
Mike installed a PML 4L80 transmission pan on his 1997 K3500. He does a lot of towing with his K3500 and wants to keep his fluid cooler during trips. He installed the PML pan and a rear differential cover in 2004. Ten years later the truck still runs great.
Click here for information on the PML differential cover for the C/K3500.
Darrel installed this PML pan on his 1995 Chevy Suburban 2500 4x4 with 6.5L diesel. A cable bracket had to be trimmed down and it was a tight fit.
1995 Suburban stock pan
PML 4L80 pan installed on 1995 Suburban
1995 Suburban driver side
Images show: Stock pan, PML pan installed, Driver side view of PML pan, Bracket on PML pan
Front clearance to PML transmission pan, rear mount to PML transmission pan, tools Darrell used
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Our thanks to Darrel for sharing the pictures and information on his installation. Here are the steps he took to install this pan.
- Drained stock transmission
- Removed shift linkage bolts and U shaped clip holding cable to bracket with a flat bladed screw driver
- Modified bracket to fit on PML pan (see PDF)
- Gained access to the rear three bolts on the stock pan by:
- Removing the 4 cross member bolts
- Removing the mount to cross member nuts
- Loosened but did not remove the bolts to the adapter and mount
- Used a bottle jack on cribbing to get it high enough to make contact with bottom of transfer case
- Used a 2x4 between top of jack and transfer case just to protect transfer case
- Picked the transfer case just high enough to slide the cross member towards back of the truck
- The holes in the cross member are slotted so no need to remove transmission mount
- Removed old pan and filter
- Installed new filter and new pan with gasket
- Started one bolt on each side of the pan to get all holes to line up and continued installing the rest of the bolts with the help of the tools shown in photo
- Tighten the bolts using a combination of the tools shown in photo
These steps are NOT recommend or tested by PML, Inc. and are for reference only. Installer is responsible for any damage to persons or property.
There are two different filters for the 4L80. PML recommends the Early Model filter for this transmission pan. Example part numbers are:
- GM OEM part number 08684221
- Pioneer Filter Part Number 746052
- Wix 58917
A filter extension is not needed since the PML pan has filter supports to hold the filter in place.
If using a late model filter, the supports in the PML pan are not designed to rest on the bumps on the bottom of the filter. PML does not recommend using a late model filter.
The installer must verify fitment and installation. Be sure to check that the filter sits correctly.
PML recommends a cork or cork composite gasket with our GM 4L80, 4L80E transmission pans. For example, Mahle Part Number W39379. This gasket is about 0.070 inches thick. Many other manufacturers also make cork/cork composite gaskets for the 4L80 transmission that would work great with this PML transmission pan. This is just an example.
The installer must verify fitment and installation.
Cable Bracket on Stock Pan
Some stock pans have a bracket for the shift cable assembly attached to the flange.
Click on image to view larger.
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.