NHTSA ID Number: 10218840
Manufacturer Communication Number: IS 373
TSB/Document Date: 2022-08-29
Summary
P2 Carrier
Bushing Removal and Installation.
INSTRUCTION SHEET NO. 373
P/N 29569986
July 06, 2022
Page 1 of 2
SUBJECT:
P2 Carrier Bushing Removal and Installation (For use in Service Bushing Kit P/N 29569987)
The following are abbreviated instructions to install current P2 carrier bushing (P/N 29568185) into 1000 SeriesTM
and 2000 SeriesTM P2 planetary carriers. Reference SIL 09-1K2K-22 (latest revision) or updated Service Manual
(SM5818) for complete instructions and illustrations.
CAUTION: Lube hole alignment is critical on P2 carriers that do not contain the oil annulus within the
snout of the carrier. Be sure to follow these instructions (or instructions found in the latest Service Manual),
and check for proper lube passage clearance following installation. Failure to align and verify appropriate
lube hole clearance in this combination can lead to transmission damage.
Tools Required:
• J-43785 P2 Bushing Remover/Installer
• J-8092 Universal Driver Handle
Bushing Removal:
1. Position P2 planetary carrier on wooden blocks on the press with the external splines facing up.
2. If the bushing is removed without a press, attach the short end of J-43785 P2 Bushing Remover/Installer
onto J-8092 Universal Driver Handle.
3. Using the longer end of J-43785 P2 Bushing Remover/Installer, press or drive the bushing out of the P2
planetary carrier.
Bushing Installation
1. Position P2 carrier on the wooden blocks on the press with the external splines facing down.
2. Locate the oil lube holes on the P2 planetary carrier snout. Position yourself over the carrier and visually
align the lube holes between those of the bushing and the P2 carrier. Mark with a paint marker to use as
a visual reference for bushing alignment. Carrier pinion spindles 180 degrees apart can also be used as
reference points for lube hole alignment.
3. Current bushings will contain four lube holes. Using a current P2 carrier bushing, orient either set of lube
holes with the alignment paint marks made on the P2 carrier.
4. If the current bushing is installed by hand, attach the long end of J-43785 P2 Bushing Remover/Installer
onto J-8092 Universal Driver Handle.
5. Insert the shorter end of J-43785 P2 Bushing Remover/Installer tool onto a current bushing while maintaining
bushing alignment with paint marks on P2 carrier.
JT / IS8956EN
6144882
Copyright © 2022 Allison Transmission, Inc. All Rights Reserved.
INSTRUCTION SHEET NO. 373
P/N 29569986
July 06, 2022
Page 2 of 2
6. Install the current bushing using J-43785 P2 Bushing Remover/Installer.
7. After current bushing installation, verify minimum lube hole clearance with a 3 mm Hex Key. Ensure 3 mm
Hex Key can pass though each P2 carrier and bushing assembly lube hole.
8. If the minimum lube hole alignment is not attained during bushing installation, return to Step 1 of the Bushing
Removal procedure above and repeat the P2 planetary carrier bushing replacement procedures until the
minimum lube hole clearance is met.
CAUTION: A new bushing can only be reused a maximum of three times. If the installer notices minimal
effort during bushing installation, then discard bushing and install a new bushing.
Copyright © 2022 Allison Transmission, Inc. All Rights Reserved.
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TSB/Document ID: IS 373
Replacement Service Bulletin Number:
MFR Communication Date: 2022-06-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: SUSPENSION
MFR Component System:
MFR Component Subsystem:
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