PML Differential Covers for the GM 9½" Ring Gear, 14 Bolt
PML makes three different covers for this rear GM differential because of the many applications. All these covers will fit the differential. Choose based on the space available and fin pattern preference.
This table summarizes the differences between the PML covers:
|Part Number 6070||Part Number 9504||Part Number 10303-2|
|Vertical Fins||Pattern Fins||Horizontal Fins|
|1 quart over stock||1 quart over stock||0.5 quarts over stock|
|4.7 inches tall||3.4 inches tall||
3.2 inches tall
|Note: Pre-2000 trucks usually have plenty of space behind the stock differential cover||Note: 2000 and newer trucks have less space behind stock differential cover because of the spare tire||Note: Hummer H2, Trailblazer SS, and SSR 6 speed have suspension bars right behind the stock cover|
|Available in three finishes, shown below.||Available in three finishes, shown below.||Available in three finishes, shown below.|
|PML part number 6070 in the as-cast finish||PML part number 9504 in the as-cast finish||PML part number 10303-2 in the as-cast finish|
|PML part number 6070 in the black powder coat finish||PML part number 9504 in the black powder coat finish||PML part number 10303-2 in the black powder coat finish|
|PML part number 6070 in the polish finish||PML part number 9504 in the polish finish||PML part number 10303-2 in the polish finish|
The GM 9.5 ring gear rear differential is found on trucks, SUVs and vans from 1988 to the present.
Always check your vehicle to verify configuration and clearance since configurations vary.
Fill and Drain Holes and Temperature Sensor Boss
These covers include drain holes and a fill/level check hole.
A magnetic drain plug is included for use in the drain hole.
Below the fill/level check hole is a boss that can be machined for a temperature sensor.
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PML Differential Cover Features:
Learn more about finishes and construction of PML parts.
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