PPE 138053000 Heavy-Duty Cast Aluminum Rear Differential Cover Installation Guide

June 9, 2024
PPE

Heavy-Duty Cast Aluminum Rear Differential Cover
Installation GuidePPE 138053000 Heavy-Duty Cast Aluminum Rear
Differential Cover

Heavy-Duty Cast Aluminum
Rear Differential Cover
GM 6.6L Duramax (L5P)
(138053000, 138053010, 138053020)
Installation Guide

CONTENTS:

PPE 138053000 Heavy-Duty Cast Aluminum Rear Differential Cover - Figure
1

A (1) Cast Aluminum Rear Differential Cover
B (1) Neodymium Magnet Equipped Fill Plug (installed)
C (1) Neodymium Magnet Equipped Drain Plug (installed)
D (1) 1/8-inch NPT plug (installed)
E (12) M8 x 1.25 MM x 30 MM socket head cap screws
F (14) M8 8.25 MM x 15 MM washers
G (2) M8 x 1.25 x 60 MM hex end studs
H (2) M8 x 1.25 hex nuts

PREPARATION:

Step 1 Vehicle off, secure and cool.
Step 2 Loosen the stock drain plug on the differential case with a 3/8-inch drive. Drain the differential oil. Replace and tighten drain plug.
Step 3 Remove the stock screws securing the stock differential cover with a 13mm socket. Retain the two stock bracket nuts. Move brackets and secure out of the way.
Step 4 Remove the stock differential cover and gasket. Retain stock gasket.
Step 5 Thoroughly clean stock gasket and housing surface.

INSTALLATION:

Step 1 Install the two Studs (G) with a 6mm Allen socket. (FIG 1)

Step 2 Place the PPE Differential Cover and Stock Gasket onto the locating studs. Align PPE Cover with stock gasket. Install washer and nut assemblies (F, H).
Reinstall bracket (FIG 2). Tighten nut assemblies finger tight for now.

Step 3 Install Washers (F) and Nuts (H)over the two Studs (G).
(FIG 3)
Torque bolts to 20-25 ft. lbs.

Step 4 Reinstall bracket using factory bracket nuts on the two Studs (G). (FIG 4)

Step 5 Tighten Cap Screws (E) and hex nuts (H) using a crossing pattern as shown below (FIG 5). Torque to 20-25 ft. lbs.

PPE 138053000 Heavy-Duty Cast Aluminum Rear Differential Cover - Figure
6

Step 6 Recheck tightness the stock drain plug on the differential case with the 3/8-inch drive.
Step 7 Recheck installed hardware and that the brackets are secure and properly reinstalled.
Step 8 Remove the Fill Plug (B) with a 18mm socket then fill with the recommended differential oil until some fluid leaks out of the fill plug.
Wipe down any excess differential fluid then reinstall the Fill Plug and tighten to 18-22 ft lbs.

DISCLAIMER OF LIABILITY

Step 6 Recheck tightness the stock drain plug on the differential case with the 3/8-inch drive.
Step 7 Recheck installed hardware and that the brackets are secure and properly reinstalled.
Step 8 Remove the Fill Plug (B) with a 18mm socket then fill with the recommended differential oil until some fluid leaks out of the fill plug.
Wipe down any excess differential fluid then reinstall the Fill Plug and tighten to 18-22 ft lbs.
Installation complete.

DISCLAIMER OF LIABILITY
Performance products can increase horsepower above and beyond factory specifications.
Additional horsepower creates more stress on the drive-train components, which could result in drive-train failure.
Note regarding emissions-related, non-E.O.-legal products: THESE PRODUCTS ARE LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES THAT MAY  NEVER BE USED, OR REGISTERED OR LICENSED FOR HIGHWAY OR OFF-ROAD USE.
This agreement sets forth the terms and conditions for the use of PPE products. The installation of this product indicates that the Buyer has read and understands this  agreement and accepts the terms and conditions. PPE (Pacific Performance Engineering) Inc., its distributors, employees, and dealers (the “Seller”) shall not be responsible  for the product’s proper use and service. The buyer hereby waives all liability claims. The Buyer hereby acknowledges no reliance on the Seller’s skill or judgment to select or furnish goods suitable for any particular purpose and that there are no liabilities which extend beyond the description on the face hereof, and the Buyer hereby waives all  remedies or liabilities expressed or implied, arising by law or otherwise (including without any obligation of the Seller with respect to fitness, merchantability and  consequential damages), or whether or not occasioned by the Seller’s negligence. The Seller disclaims any warranty and expressly disclaims any liability for personal injury or  damages. The Buyer acknowledges and agrees that the disclaimer of any liability for personal injury is a material term for this agreement and the Buyer agrees to indemnify  the Seller and to hold the Seller harmless from any claim related to the item of equipment purchased. Under no circumstances will the Seller be liable for any damages or expenses by reason of use or sale of any such equipment. The Seller assumes no liability regarding the improper installation or misapplication of its products. It is the  installer’s responsibility to check for proper installation and if in doubt, contact the manufacturer. The Buyer is solely responsible for all warranty issues from the manufacturer.

LIMITATION OF WARRANTY
The Seller gives Limited Warranty as to description, quality, merchantability, and fitness for a particular purpose, productiveness, or any other matter of Seller’s product sold  herewith.
The Seller shall not be responsible for the products proper use and service and the Buyer hereby waives all rights other than those expressly written herein. This warranty  shall not be extended, altered or varied except by a written instrument signed by Seller and Buyer.
The Warranty on PPE Manifolds and Up-Pipes Kits, OEM-Length Up-Pipes is three (3) years, a limited lifetime warranty on PPE cast aluminum pans and covers, and a  limited lifetime warranty on PPE Transmission Coolers and one (1) year limited warranty on all other PPE products from the date of sale to original buyer and limited solely  to the parts contained within the products kit. All products that are in question of Warranty must be returned prepaid to the Seller and must be accompanied by a dated proof  of purchase receipt. All Warranty claims are subject to approval by Seller. Under no circumstances will the Seller be liable for any labor charged or travel time incurred  in diagnosis for defects, removal, or re-installation – of this product or any other contingent expenses. Under no circumstances will the Seller be liable for any damage or  expenses incurred by reason of the use or sale of any such equipment. In the event that the buyer does not agree with this agreement: the buyer may promptly return this  product, in a new and unused condition in its original packaging, with a dated proof of purchase to the place of purchase within ten (10) days from date of purchase for a full  refund. The installation of this product indicates that the buyer has read and understands this agreement and accepts its terms and conditions.

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References

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