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PML Deep Transmission Pan for GM 6L50
Part Number 11150
Includes transmission pan, mounting bolts and washers, fill plug, magnetic drain plug and sealing washer.
PML Extra Capacity GM 6L50 Transmission Pan, Click To View Larger Image
PML Extra Capacity GM 6L50 Transmission Pan, Black Powder Coat Finish, Click To View Larger Image
|Black powder coating
Volume: about 1 1/2 to 2 quarts over stock
Dimensions: Click here for dimensions. The PML pan is about 5 inches deep.
Number of Bolts: 17 bolts (there are 19 holes, 2 holes locate the gasket and 17 holes for bolts to hold the pan to the transmission case)
See Installations below for examples.
The GM 6L50 transmission is found on 2015 and newer Canyon and Colorado and models of Cadillac, Camaro Caprice, and Corvette. This pan was designed for trucks and SUVs with plenty of ground clearance such as:
International trucks and SUVs, such as 2012 and newer Trailblazer, Holden Colorado and Colorado 7, may also be able to use this pan.
Trucks needing more ground clearance or cars such as Cadillac, Camaro, Caprice, and Corvette, please see our project part number 11149.
Always check your vehicle to verify transmission and clearance. Configurations vary.
Suspension Leveling Kits can change the angle of the transmission and pan, which can change how the level check hole functions and affect the amount of fluid.
For 2017 and newer gas engine Canyon and Colorado, GM switched to an 8 speed transmission. See PML deep 8L90 transmission pan project.
This PML pan design is based on the stock transmission pan for Canyon/Colorado trucks.
Benefits of PML Design
Fill and Level Check
On the 6L50 transmissions we have seen, the fill is a plugged hole in the main casing, on the passenger/right side. Vehicles do not have a dipstick or fill in the engine compartment. The fluid level check hole is on the pan. Checking the fluid level can be confusing, no matter if you have the stock pan or a PML pan.
The PML level check hole is at the same location relative to the transmission as on the stock pan.
Check your owners or service manual for the procedure for your vehicle.
Note: On early revisions of the PML pan, transmission fluid returning to the pan may splash out the level check hole. See Revisions Information below.
Inside of stock GM 6L50 transmission pan, level check hole, click to view larger image
Stock GM 6L50 transmission pan, level check distance to flange surface, click to view larger image
PML GM 6L50 transmission pan, level check distance to flange surface, click to view larger image
Stock pan does not have a drain plug, so changing the transmission fluid and filter is a messy procedure.
PML pan has a drain hole on the driver side. A magnetic drain plug is included with the pan.
Click on image to view larger in a separate tab or window.
Filter Supports, Inside of PML Pan
This PML transmission pan works with the stock filter.
PML designed this pan with filter supports. These hold the filter at the same location as the stock pan so no filter extension is needed.
The fluid level and pick-up remain the same with a PML pan as with the stock pan.
Image shows the inside of the pan. Click on image to view larger.
PML 6L50 transmission pan works with stock gaskets.
Included With Pan
This PML transmission pan ships with new mounting bolts and washers, fill plug, magnetic drain plug and sealing washer.
Image shows as cast finish part. Click to view larger image in a new tab or window.
Optional Machining For Temperature Sending Unit
Optionally, this pan can be machined for an aftermarket temperature gage. There is a boss (half circle shaped, thick area on the casting) on the passenger (right) side of the pan. This location is indicated in the image of the inside of the pan.
If you want PML to drill and tap the pan, there is a $45 machining charge per hole and we would need to know the size. We can machine between 1/8 NPT and 1/2 NPT. Default size is 1/8 NPT if you require a different size, please call to order.
Revisions of PML 6L50 Deep Transmission Pan
There are four revisions of this PML pan.
On the second revision of this pan and maybe the first, transmission fluid returning to the pan may splash out the level check hole. This fluid coming out may look like too much fluid was added when, in actuality, the pan is not over full. Revisions 3 and 4 prevent the splash out. Contact PML to trade your revision 1 or 2 pan for a revison 3 or 4 pan.
On revisons 3 and 4, the level check hole cannot be used as an alternate fill location.
Ground Clearance, Stock Capacity Pan
Cars, such as Camaros and Cadillacs, would probably need a pan closer to the stock depth. A modified truck may also need a pan closer to stock depth.
Always check carefully for clearance.
Depending on demand, PML is planning a stock capacity pan that would be about 3/4 inch taller than stock. See PML stock capacity 6L50 pan, part number 11149.
PML Transmission Pan Compared to Stock
These images show this PML transmission pan compared to the stock pan.
There are two stock pans for the GM 6L50 transmission. One has heights of 3.3 inches at the front of the pan and 2.5 at the rear and the bottom flat part is 10.25 inches. The other pan is 3.1 inches in height and the bottom flat part is about 9 inches.
Our thanks to all those who have emailed us pictures of their installations:
2017 Colorado 2.8 Diesel
Dennis installed this PML transmission pan on his 2017 Colorado. He reported that " Installation was so easy, removed and replaced not even 1 hr" and that "my trany is running about 10 to 15 degrees cooler now".
2017 Chevy Colorado, 2.8 diesel, 6L50 transmission
PML 6L50 transmission pan on a 2017 Chevy Colorado, 2.8 diesel, driver's side view, drain plug toward the front of the pan
PML 6L50 transmission pan on a 2017 Colorado, 2.8 diesel, looking towards front of truck
2017 Colorado 2.8 Diesel
Brian reported fluid temperatures 15 degrees cooler with the PML pan installed.
2017 Colorado 2.8 Diesel
Zach's Transmissions in Longmont, Colorado, installed this transmission pan on a 2017 Colorado. They emailed us pictures of the stock pan and pictures of the PML pan.
2016 Canyon 2.8 Diesel 4x4
Jeff's Canyon has a Zone 5.5 suspension lift and has ample ground clearance. He reported that installation took about an hour. He noticed a 10 to 15 degree difference in transmission temperature after installing this PML pan.
2016 Canyon 2.8 Diesel 4x4, Zone 5.5 Lift
2016 Canyon with PML decal, looking good
2016 Canyon Diesel with PML 6L50 transmission pan, driver side of pan showing drain hole and drain plug
2016 Canyon Diesel 4x4 with PML transmission pan, fill hole at rear of transmission pan
2016 Colorado 2.8 Diesel
Nick installed this transmission pan on his 2016 Colorado 2.8L Duramax Diesel 2WD truck. His truck has a 2 inch leveling kit. He reported that after installing the pan he drove to Idaho and his fluid temperatures were 20 degrees lower than on his last trip.
He checked clearances and reported that the PML pan does not hang down below front cross member.
2016 Chevrolet Colorado, 2.8 diesel, 6L50 transmission
2016 Chevrolet Colorado diesel stock 6L50 transmission pan, driver side view
2016 Chevrolet Colorado diesel stock 6L50 transmission pan
2016 Colorado 3.6 Gas
Gas engine trucks have the exhaust cross over pipe under the transmission pan and the level check plug does not allow the stock pan to slide off. So Robert had to loosen and lower the pipe for more space so he could remove the stock pan and get the PML pan installed. After that, the installation went smoothly.
After installing the PML pan, Robert saw a fluid temperature reduction of 10 to 15 degrees when returning to highway speeds after stop and go traffic.
2016 Chevy Colorado 3.6 gas engine truck
2016 Colorado gas engine truck stock transmission pan, exhaust cross over pipe under rear of pan
Level check on stock transmission pan requires exhaust to be loosened and dropped to remove stock pan on 2016 Colorado 3.6
2016 Colorado 3.6 with PML transmission pan installed
2010 Camaro 3.6
Monty installed this transmission pan on his 2010 Camaro Limited Edition LLT 3.6 V6.
Monty's Camaro has been modified with oversized tires and an aftermarket dual exhaust and muffler, so his Camaro is raised about 1 inch. This deep pan is not recommended for a stock Camaro.
The extra clearance on this Camaro provides enough space for this deep sump PML pan. Monty drained 7 quarts and added 9 1/2 quarts of fluid. He realized a 15-20 degree operating temperature drop after installation.
2010 Camaro Limited Edition LLT 3.6 V6, raised 1 inch with aftermarket exhaust, muffler, and oversized tires
Engine of a 2010 Camaro Limited Edition LLT 3.6 V6
Stock GM 6L50 transmission pan on a 2010 Camaro 3.6, drain added by owner
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