GM 700R4, 4L60, 4L60E, Early Model Years, Deep Transmission Pan
Part Number 8650-1
|Black powder coating
Volume: 4.0 quarts over stock GM shallow pan
Dimensions: Click here for dimensions.
Number of Bolts: 16
This PML transmission pan fits the GM 700R4, 4L60, 4L60E transmissions.
PML designed this pan as a heavy duty, extra capacity replacement for the GM shallow pan that came with vehicles model year 1998 and older and a few vehicles, such as Camaro and Firebird up to 2002. The stock GM shallow pan and the stock GM deep pan are shown in the picture below.
Note there are two versions of the stock GM shallow pan. They have the same depth. The older version is primarily found on 700R4 transmissions. This PML pan, part number 8650-1, can replace either style GM shallow pan.
You should always check your truck, SUV, or van to see which stock pan you have and look for clearance with exhaust, drive shaft and frame cross members. Generally, here are some examples of vehicles that this PML pan fits:
Drive Shaft: Some of these vehicles may have the drive shaft too close to the stock pan to allow for thicker walls of the PML pan. Check the location of your drive shaft before ordering. See pictures on a 1986 K10 below.
Bell Housing: Some of these vehicles have the bell housing close to the transmission pan and material must be removed from the leading edge of the PML pan so it fits and the bolt holes line up. See 1994 Suburban Installation below.
Later year models of the above vehicles have exhaust or frame cross members running under the pan and our part number 9427 is designed with a step for clearance on those vehicles.
PML designed this pan to work with the 700R4 and 4L60E filters that fit the stock GM shallow pan. Please see our Filter Guide for PML Part Number 8650-1.
Filter Supports, Temperature Sending Unit Locations and Drain Hole
The filter supports are the three cylinders in the middle of the pan on the inside. These filter supports are designed for the 700R4 and shallow 4L60E filters.
The drain is on the driver's side. A magnetic drain plug is included with the pan.
Optionally, this pan can be machined for a temperature sending unit. The pan has bosses on the passenger side and the driver side that can be machined. PML has a machine shop and can drill and tap to your specifications between 1/8 NPT and 1/2 NPT for a $45 machining charge.
Shift Cable Mounting Bracket
You may have to modify your shift cable mounting bracket to use this pan. If the trans pan mounting bolts hold the shift cable bracket on, please reference this article from Vette magazine for details.
PML Transmission Pan Compared to Stock
These images show this PML transmission pan compared to the stock pan.
2001 Chevy S10
Dean installed this pan on his 2001 Chevy S10 2WD 3 Door Extended Cab pick up. The cross member was far enough away that this deep PML pan fit without any clearance issues.
To attach the shifter cable bracket, Dean drilled and tapped into the side of the PML pan using M6x1.0 bolts and used RTV sealant. He reported no leaks and the shifter working OEM smooth and calibrated.
A 1995 K2500 5.7 4WD got this transmission pan and a PML differential cover installed.
1995 K2500 with PML 4L60E transmission pan installed
1995 K2500 with PML 4L60E transmission pan installed, driver side has drain
1995 K2500 with PML differential cover, driver side view of installation
1994 GMC Suburban K1500, Pan Needed Modification
Dave installed this transmission pan on his 1994 GMC Suburban 5.7L SLE K1500. He loves the pan, but did have to take off a moderate amount at the front edge (near bell housing) to fit and align bolt holes. See picture with him pointing to specific area. There were no other fitment or clearances issues. Plenty of clearance around trans crossmember, driveshaft and exhaust.
Bell housing close to pan, front edge of pan needed grinding
Drive shaft next to PML pan
PML Pan on 1986 K10 Too Close to Drive Shaft
Justin installed this PML pan on his 1986 GMC K-10 4x4 with the 700R4 transmission and the New Process NP 208 transfer case. The factory drive shaft with the 2 inch tube comes quite close to the stock pan. Because the PML pan has thick walls, the space between the PML pan and the drive shaft is about 0.06 inches. This is too close.
Justin also let us know that this PML pan fits just fine with the factory exhaust on a 305 V8 bu the pipes had to be dropped to install the pan.
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.
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