GMC Sierra C3500 HD
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Service History
2025-05-22 - 118144
- Replaced PRND321 switch assembly on transmission
2022-10-08 - 118144
- Fixed fuel gauge (jumper FPBM pin B to pin C)
- Fixed no airflow from vents issue (debris jammed actuator)
- Cleaned debris from heater core
- Replaced LH door hinge pin, bushings, spring
- Replaced left side courtesy light switch
- Replaced both under-dash courtesy bulbs (194LL)
2022-09-18 - 118144
- Replaced LH & RH upstream O2 sensors
- Replaced RH knock sensor
- Replaced oil pressure sender
- Replaced front and rear U-joint clamps
- Greased lift arms (needs 2 new zerks)
- Attached filler neck to brace
2022-08-21 - 118137
- Replaced column shifter bracket
- Replaced shifter boot
- Replaced HVAC blower motor
- Replaced drivers side interior door handle
- Replaced windshield washer tubing under cowl
- Replaced transmission extension housing rear seal
- Replaced U-joint clamps
- Cleaned & pressure washed area under cowl
To Do
- Fix possible leak near air box
- Replace shifter cable
- Replace RH upstream O2 sensor connector
- Replace door weather stripping
- Replace upper and lower steering column shrouds
- Replace left front reflector lens
- Replace rear tail lamps
- Replace speakers
- Replace floor mat
- Recover seat
- Redo trailer wiring
- Verify AC condensation drain line is clear
- Charge AC system
- Clean out defroster vents, debris between windshield & dash
Info
- VIN 1GDKC34J1XF------
- 1 - United States
- G - General Motors
- D - GMC
- K - 14001-16000/Hydraulic
- C - Conventional Cab/4x2
- 3 - 1 Ton
- 4 - Two-Door Cab
- J - 7.4L Gas (L29)
- 1 - (Check digit)
- X - 1999
- F - Flint, MI
- Engine code
- (need to get this)
- Axle code "TL 22L GC609B275 2ND"
- xx
- 4L80E ID
- (need to get this)
Transmission Drum Brake Notes
The shoe set or hardware kit is readily available, just make sure it's for a C3500 with 15K GVW and tail mounted setup. Any of the brands of shoe set need to have the half moon ground out a little or the drum will NOT go back on.
Rockauto is the cheapest.
Documents
General
- Owners Manual
(3.18 MB)
Factory Service Manuals
- 1999 GMT/99-CK Service Manual Volume 1 & 2 (504.31 MB)
- 1999 GMT/99-CK Service Manual Volume 3 & 4 (499.84 MB)
- 1998 GMT/98-CK-1 Service Manual Volume 1 (73.19 MB)
- 1998 GMT/98-CK-2 Service Manual Volume 2 (44.97 MB)
- 1998 GMT/98-CK-3 Service Manual Volume 3 (101.27 MB)
- 1998 GMT/98-CK-4 Service Manual Volume 4 (68.09 MB)
Miscellaneous
- 2000 T400-CK Upfitters Guide (7.25 MB)
- Motive Gear Ring & Pinions / Bearing Kits (9.77 MB)
- Packard Electric Repairing Wiring Harnesses (8.72 MB)
- Spicer Drivetrain Components (4.43 MB)
- Vectronix GM Chassis Application 1986-2004 (4.85 MB)
4L80E Specific
- ATRA Rebuild Procedures (139.83 MB)
- ATSG 4L80E Technical Manual (51.01 MB)
- Black00SSFL_Teardown_Rebuild_And_Installation (44.88 MB)
- Blueprint_Checkout (36 KB)
- Center Lube Changes GM06-45 (2.69 MB)
- CK Performance 4L80ECC/HDSRK HD Shift Recalibration Kit Instructions (1.39 MB)
- CK Performance 4L80CC/MSRK Master Shift Recalibration Kit Instructions (1.63 MB)
- CK Performance_4L8VB/ASTB Autoshift Transbrake Instructions (1.81 MB)
- GEARS Article Correcting Carrier Float (157 KB)
- GEARS Article Improve Your 300 And 4L80 Rebuilds (287 KB)
- Jake's Performance D3 Transbrake Instructions (1.31 MB)
- Jake's Transmission D1 Transbrake Instructions (1.03 MB)
- Parts Catalog Ganzeboom (2.6 MB)
- Parts Catalog Unknown (5.25 MB)
- Parts Catalog WIT (2.1 MB)
- Rubberbandits 4L80E Build Thread 1 (11 MB)
- Rubberbandits 4L80E Build Thread 2 (4.17 MB)
- Superior K4L80-E Kit Instructions (2.8 MB)
- Tech Info (1.16 MB)
- Technicians Guide 1998 (21.56 MB)
- TransDoctor Cabling (4.76 MB)
- US Army Transmission Troubleshooting Guide (2.64 MB)
- Valve Body Recalibration Kit Instructions (942 KB)
Online Resources
- https://www.driverside.com/specs/gmc-sierra_3500_hd-1999-2857-5823-0?style_id=16067 (Transmission is shown as manual, which is incorrect)
- https://www.gmt400.com/threads/4l80e-w-transmission-drum-e-brake-leaking.59411 (My thread on leaking yoke seal)
- https://www.gmt400.com/threads/99-7-4l-what-is-this-sensor.59499/ (My thread on oil pressure sender)
- https://www.gmpartsgiant.com/page_product/pl?vin=1GDKC34J1XF065530
- https://gmc.7zap.com/en/3500hd/51090-1999/
- http://oemcats.com/
- https://www.dieselhub.com/maintenance/dana-80-fluid.html (Dana 80 specifications and fluid change procedure)
Paint Code
Base Coat/Clear Coat U 8624
RPO Codes
| RPO | Description |
|---|---|
| A52 | SEAT, FRONT BENCH, 3-PASSENGER |
| B71 | ORNAMENTATION, EXTERIOR, WHEEL OPENING MOLDING (BLACK) |
| CMD | PLANT CODE FLINT, MI, GM T&B |
| C5B | GVW RATING (15000 LBS) |
| C60 | AIR CONDITIONER, FRONT, MANUAL CONTROLS |
| DG5 | MIRROR, O/S WIDE LOAD, LARGE, WEST COAST STYLE |
| FE9 | FEDERAL EMISSION CERTIFICATION |
| F44 | CHASSIS EQUIPMENT, HEAVY DUTY |
| GK9 | AXLE, REAR, 4.63 RATIO |
| JF9 | BRAKE SYSTEM, HYDRAULIC POWER 4-WHEEL DISC |
| KW2 | GENERATOR, 124 AMP |
| L29 | ENGINE, GAS, 8 CYL, 7.4L, MFI |
| MT1 | TRANSMISSION, AUTO, 4-SPD, THM-R2 (4L80-E) |
| NF2 | EMISSION SYSTEM, FEDERAL, TIER 1 |
| NG5 | REGISTRATION EMISSION, CERTIFICATION, FIFTY STATE (50) |
| R6C | CONTROL SALES ITEM 3 |
| R6F | CONTROL SALES ITEM 6 |
| R9S | CONTROL SALES ITEM 93 |
| SLM | STOCK ORDER, PROCESSING CODE |
| UM7 | RADIO, AM/FM STEREO, ETR, CLOCK |
| UQ5 | SPEAKER SYSTEM, 4, DUAL FRONT DOOR MOUNTED, DUAL EXTENDED RANGE QUARTER MOUNTED |
| VC0 | VEHICLE LABEL, NOISE CONTROL INFORMATION |
| VXT | LABEL INCOMPLETE VEHICLE |
| V73 | VEHICLE STATEMENT - US/CANADA |
| XTN | TIRE FRONT 225/70R19.5/F BL TL RAD |
| YD6 | SPRING, REAR (BASE EQUIPMENT) |
| YD7 | AXLE, FRONT (USED WITH R05) FOR SCHEDULING GVW PLATE |
| YTN | TIRE REAR 225/70R19.5/F BL TL RAD |
| ZW9 | BASE BODY OR CHASSIS |
| ZY1 | COLOR COMBINATION SOLID |
| Z88 | GMC TRUCK |
| 1SA | PACKAGE-OPTION 01 |
| 1SZ | PACKAGE OPTION |
| 13I | INTERIOR TRIM, LT SMOKE GRAY |
| 13V | TRIM COMBINATION VINYL, LT GRAY |
| 50U | EXTERIOR COLOR, PRIMARY, OLYMPIC WHITE |
| 6GR | COMPONENT FRT LH COMPUTER SEL SUSP (6GR) |
| 7GR | COMPONENT FRT RH COMPUTER SEL SUSP (7GR) |
Parts
| Part Number | Description |
|---|---|
| 8675517 | Transmission Output Shaft Seal |
| 8661280 | Extension Housing For Drum Brake |
| 8681168 | Extension Housing To Transmission Seal |
| 8675731 | Extension Housing Output Shaft Seal (SKF 21236) |
| 141N204C-K | Drum Brake Yoke |
| 15661993 | Drum Brake Parking Shoes |
| 15638910 | Drum Brake Cable Bracket [1] |
| 8242294220 | Neutral Safety Switch |
| 11561054 | Armrest Screw (4 required) |
| 15024857 | LH Door Water Deflector Shield |
| 15024858 | RH Door Water Deflector Shield |
| 2344019 | O2 Sensor (Upstream, Denso) |
| 2134458 | Knock sensor (ACDelco) |
| D1819A | Oil pressure sender (ACDelco) |
| 331-10 | U-joint clamps (Moog) |
