Accessories
Clutches & Flywheels
Shifters
Torque Converters & Flexplates
Transmissions
B&M CABLE BRACKET & SHIFT LEVER KIT - GM 4L60E, 4L65E, 4L80E and 4L85E
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$38.73
B&M HI-TEK SUPERCOOLER MEDIUM - 20,500 BTU RATING
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$153.95
B&M HOLESHOT 3000 TORQUE CONVERTER, 1998-UP W/LS1 4L60E, 4L65E
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$852.95
B&M Racing Transmission Cooler-11" x 11" x 1-1/2" with 1/2" NPT fittings (Install Hardware Not Included)
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$185.95
B&M STREET/STRIP AUTOMATIC TRANSMISSION - GM 4L80E
$3,069.95
Bowler Transmission 4L80E LS Package up to 650 ft lbs
$7,575.00
Bowler Transmission 4L80E LS Package up to 800 ft lbs
$8,320.00
Bowler Transmissions 4L70E LS Package up to 480 ft lbs
$6,714.00
Bowler Transmissions T-56 Magnum Basic LS Package 700 ft lbs
$6,780.00
Bowler Transmissions T-56 Magnum Bowler Stage II LS Package 800 ft lbs
$9,274.00
Circle D HP series 278mm Torque Converter; 3200 - 3400 rpm; 6L80
$799.00
Circle D LS/ LSA/ Gen5 LT Billet Flexplate
$399.00
Circle D Specialties 4L60 HP Series 300MM Single 3D w/ Billet Cover 2800-3000 Stall
$799.00
Circle D Specialties 4L80 HP Series 300MM Single 3D 2800-3000 Stall
$799.00
Circle D Specialties 4L80 HP Series 300MM Single 3D w/ Billet Cover 2800-3000 Stall
$899.00
Dirty Dingo LS Conversion Flex Plate with ARP Bolts
$149.99
Energy Suspension 99-13 Chevrolet Silverado 2WD 1500 Trans Mount - Red
$43.84
FTI 300M Billet Input Shaft 4L80E - 4L85E
$309.00
FTI 4L80E/4L85E Deep Aluminum Pan Kit
$229.00
FTI Performance 1 Piece Billet Flexplate 168 Tooth - Dished 6 Bolt LS Style
$580.45
FTI Performance 11" EXTREME STREET BILLET CONVERTER GM 4L60E, 4L65E
$639.00
FTI Performance 11" STREET BRAWLER CONVERTER GM 4L60E, 4L65E
$509.00
FTI Performance 9.5" BILLET LOCK UP STREEET RACER SERIES CONVERTER, 4L60, 4L65, LS ENGINE
$989.00
FTI Performance 9.5" BILLET STREET RACER TORQUE CONVERTER, 4L80E LS ENGINE
$989.00
GM Flexplate Bolt For Use w/Crank Spacer #12563532
$8.68
GM Flexplate Shim for LS Engines w/TH350/TH400/4L80
$44.33
GM Flexplate, 6-Bolt LS to TH350/TH400/4L80 Transmission
$87.72
HAYS Twister 3/4 Race Torque Converter, 1992-UP GM 4L60E/4L65E
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$593.95
HAYS Twister 3/4 Race Torque Converter, 1992-UP GM 4L60E/4L65E
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$606.95
HAYS Twister 3/4 Race Torque Converter, 1992-UP GM 4L60E/4L65E
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$709.95
Holley T56 Release Bearing Shim Kit
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$39.27
Lokar Case Mount Shifter for GM 4L80 Transmission
$414.95
LOKAR PERFORMANCE 4L60 TRANSMISSION DIPSTICK AND FIREWALL MOUNT - BLACK STAINLESS
$146.95
LOKAR PERFORMANCE 4L60 TRANSMISSION DIPSTICK AND FIREWALL MOUNT - STAINLESS
$134.95
LOKAR PERFORMANCE 4L60E TRANSMISSION DIPSTICK AND FIREWALL MOUNT - BLACK STAINLESS
$146.95
LOKAR PERFORMANCE 4L60E TRANSMISSION DIPSTICK AND FIREWALL MOUNT - STAINLESS
$134.95
LOKAR PERFORMANCE GM 4L60 MACHINED TRANSMISSION SHIFTER WITH TREMIC STYLE LEVER ADAPTER
$214.95
LOKAR PERFORMANCE GM 4L60E MACHINED TRANSMISSION SHIFTER WITH TREMIC STYLE LEVER ADAPTER
$214.95
McLeod 6932-07 RXT Street Twin Clutch Kit, No Flywheel, For 6-Bolt LS1/LS6 Flywheel For LS1/LS2/LS3/LS6/LS7
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$955.00
Monster Clutch Co. GM "Large" Style Pilot Bearing
$19.99
QUICK TIME 5 PIECE LS ENGINE FLEXPLATE SPACERS
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$45.51
QUICK TIME BELLHOUSING - CHEVY LS AND LATE MODEL LT - LOW PROFILE
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$772.95
QUICK TIME LS 6 BOLT AUTOMATIC OEM REPLACEMENT FLEXPLATE TO 4L60
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$184.95
TCI 4L60E Super Street Fighter Torque Converter, LS1, Lock-Up, 3500 Stall Speed
$816.95
TCI 4L60E Super Street Fighter Torque Converter, LS1, Lock-Up, 4000 Stall Speed
$939.95
ARP Flywheel Bolt Kit, 7/16" diameter, 1" Long, (6 per pack)
$20.64
B&M HI-TEK SUPERCOOLER LARGE - 14,400 BTU RATING - 11.25"x7.25"x1.5"
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$135.95
B&M HI-TEK SUPERCOOLER SMALL - 7,500 BTU RATING - POLISHED FINISH
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$123.95
B&M Racing Transmission Cooler-11" x 5-3/4" x 1-1/2" with 1/2" NPT fittings (Install Hardware Not Included)
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$111.95
Caspers Electronics Skip-Shift Elimination Kit, 1996 T-56-Equipped GM Vehicle
$29.99
Circle D Specialties 4L60 HP Series 300MM Single 3D 2800-3000 Stall
$699.00
Fidanza Dual-Mass Aluminum Flywheel
$546.12
Perma-Cool 16-18000 GVW Transmission Cooler
$55.99
Perma-Cool 20-22000 GVW Transmission Cooler
$73.99
Precision Industries Vigilante Lock-Up Converter
$1,006.88
RPM 1999-Up Silverado 4L60E/4L65E Level IV Transmission
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$3,145.00
RPM 1999-Up Silverado 4L60E/4L65E Level V Transmission
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$3,545.00
RPM 1999-Up Silverado 4L60E/4L65E Level VI Transmission
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$4,045.00
RPM 1999-Up Silverado 4L60E/4L65E Level VII Transmission
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$5,245.00
TCI 4L60E Street Fighter Torque Converter, LS1, Lock-Up, 3000 Stall Speed
$772.95
TCI 4L60E Super Street Fighter Torque Converter with Billet Cover, 3500 Stall Speed, 2.7:1 STR
$1,313.95
TCI Automotive SFI Approved LS1 Flexplate
$353.95
TCI Breakaway Converter, GM, 4L60E/4L65E, LS1/LS2, Lock-up
$580.95
TCI Drag Racing Converter 10", 1998-Up LS 4L60E, 4500 Stall Speed
$1,059.95
Tick Performance Slave Cylinder Shim (.113")
$14.99
What transmission does a 2003 GMC Sierra have?
Used 2003 GMC Sierra 1500 Specs & Features.
What kind of transmission does a GMC Sierra 1500 have?
10-Speed Automatic Transmission features closer gear spacing that allows the engine to operate in an optimal range at all times with varying load and terrain conditions.
How do I know what transmission I have in my GMC Sierra?
The simplest way to find your transmission type is to look in your owner's manual. Your manual should have the name and type of transmission, along with service information. If you've misplaced your owner's manual, most trucks have a white label printed on the inside of the driver's door.
Do GMC Sierras have transmission problems?
Along with other Cadillac, Chevrolet and GMC models, 2014–2019 GMC Sierra trucks have been reported to experience harsh engagement of gears, shifting problems, transmission slipping and difficulty stopping.