2001-2004 GM 2500HD/3500HD 6.6L LB Duramax Transmission Upgrades

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SunCoast 37710-12L Deep Filter with Lock & Spin-On Transmission Filter | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
SunCoast 37710-12L Deep Filter with Lock & Spin-On Transmission Filter | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SunCoast Performance

SunCoast 37710-12L Deep Filter with Lock & Spin-On Transmission Filter | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: SUN37710-12L
Sale price
$63.05
Regular price
$76
Merchant 29537965 Allison Transmission Internal Shallow Filter | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Merchant 29537965 Allison Transmission Internal Shallow Filter | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Merchant Automotive

Merchant 29537965 Allison Transmission Internal Shallow Filter | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: MAT29537965
Price
$29.34
Merchant 10772 Transfer Case Pump Combo | 2001-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Merchant 10772 Transfer Case Pump Combo | 2001-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Merchant Automotive

Merchant 10772 Transfer Case Pump Combo | 2001-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: MAT10772
Price
$509.64
Merchant 10186 Transmission Rear Housing Support | 2001-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Merchant 10186 Transmission Rear Housing Support | 2001-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Merchant Automotive

Merchant 10186 Transmission Rear Housing Support | 2001-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: MAT10186
Price
$149.63
Fleece FPE-TAPSHIFTER12 Allison TapShifter | 2001-2002 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7
Fleece FPE-TAPSHIFTER12 Allison TapShifter | 2001-2002 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

Fleece Performance Products

Fleece FPE-TAPSHIFTER12 Allison TapShifter | 2001-2002 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

SKU: FLCFPE-TAPSHIFTER12
Price
$399
Fleece FPE-TAPSHIFTER35 Allison Tapshifter | 2003-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Fleece FPE-TAPSHIFTER35 Allison Tapshifter | 2003-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Fleece Performance Products

Fleece FPE-TAPSHIFTER35 Allison Tapshifter | 2003-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: FLCFPE-TAPSHIFTER35
Price
$399
Fleece FPE-ALILKR AlliLocker Allison Torque Converter Controller | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Fleece FPE-ALILKR AlliLocker Allison Torque Converter Controller | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Fleece Performance Products

Fleece FPE-ALILKR AlliLocker Allison Torque Converter Controller | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: FLCFPE-ALILKR
Price
$179
BD Diesel 1041260 BD Diesel Billet Allison Flexplate | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
BD Diesel 1041260 BD Diesel Billet Allison Flexplate | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

BD Diesel

BD Diesel 1041260 BD Diesel Billet Allison Flexplate | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: BDD1041260
Price
$454.95
PPE 128135105 C5 Clutch Upgrade Kit | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 128135105 C5 Clutch Upgrade Kit | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 128135105 C5 Clutch Upgrade Kit | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: PPE128135105
Price
$269.99
SunCoast SC-GMC1-20 Allison Category 1 Torque Converter | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
SunCoast SC-GMC1-20 Allison Category 1 Torque Converter | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SunCoast Performance

SunCoast SC-GMC1-20 Allison Category 1 Torque Converter | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: SUNSC-GMC1-20
Sale price
$1,450.15
Regular price
$1,495
SunCoast GM-1056-3D Triple Disk Torque Converter | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
SunCoast GM-1056-3D Triple Disk Torque Converter | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SunCoast Performance

SunCoast GM-1056-3D Triple Disk Torque Converter | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: SUNGM-1056-3D
Price
$1,527.75
PPE 128052010 Brushed Standard Profile Transmission Pan | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 128052010 Brushed Standard Profile Transmission Pan | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 128052010 Brushed Standard Profile Transmission Pan | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: PPE128052010
Price
$260.99
PPE 128052020 Black Standard Profile Transmission Pan | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 128052020 Black Standard Profile Transmission Pan | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 128052020 Black Standard Profile Transmission Pan | 2001-2019 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: PPE128052020
Price
$260.99
BD Diesel 1064704BM TorqueMaster Allison 1000 Transmission & Converter Package w/ Billet Input & Triple Torque | 2001-2004 GM 6.6L Duramax LB7 4WD
BD Diesel 1064704BM TorqueMaster Allison 1000 Transmission & Converter Package w/ Billet Input & Triple Torque | 2001-2004 GM 6.6L Duramax LB7 4WD

BD Diesel

BD Diesel 1064704BM TorqueMaster Allison 1000 Transmission & Converter Package w/ Billet Input & Triple Torque | 2001-2004 GM 6.6L Duramax LB7 4WD

SKU: BDD1064704BM
Price
$6,865
Fleece FPE-HAR-GM-NSBU-0104 NSBU Pigtails | 2001-2004 GM 6.6L Duramax w/ Allison Transmission
Fleece FPE-HAR-GM-NSBU-0104 NSBU Pigtails | 2001-2004 GM 6.6L Duramax w/ Allison Transmission

Fleece Performance Products

Fleece FPE-HAR-GM-NSBU-0104 NSBU Pigtails | 2001-2004 GM 6.6L Duramax w/ Allison Transmission

SKU: FLCFPE-HAR-GM-NSBU-0104
Price
$79.99
ATS 309-987-4248 Lct1000 5 Speed Stage 2 Transmission Package | 2001-2002 GM 2500HD/3500HD 2WD 8.1L Vortec V8
ATS 309-987-4248 Lct1000 5 Speed Stage 2 Transmission Package | 2001-2002 GM 2500HD/3500HD 2WD 8.1L Vortec V8

ATS Diesel Performance

ATS 309-987-4248 Lct1000 5 Speed Stage 2 Transmission Package | 2001-2002 GM 2500HD/3500HD 2WD 8.1L Vortec V8

SKU: ATS309-987-4248
Price
$6,389.99
ATS 309-988-4248 Lct1000 5 Speed Stage 2 Transmission Package | 2001-2002 GM 2500HD/3500HD 4WD 8.1L Vortec V8
ATS 309-988-4248 Lct1000 5 Speed Stage 2 Transmission Package | 2001-2002 GM 2500HD/3500HD 4WD 8.1L Vortec V8

ATS Diesel Performance

ATS 309-988-4248 Lct1000 5 Speed Stage 2 Transmission Package | 2001-2002 GM 2500HD/3500HD 4WD 8.1L Vortec V8

SKU: ATS309-988-4248
Price
$6,389.99
PPE 128136200 Stage 6 Complete Ready-To-Install Allison Transmission | 2001-2002 GM 6.6L Duramax
PPE 128136200 Stage 6 Complete Ready-To-Install Allison Transmission | 2001-2002 GM 6.6L Duramax

PPE

PPE 128136200 Stage 6 Complete Ready-To-Install Allison Transmission | 2001-2002 GM 6.6L Duramax

SKU: PPE128136200
Price
$4,499.99
AFE 44-TF006 Pro-Guard D2 Deep Transmission Filter | 2001-2015 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
AFE 44-TF006 Pro-Guard D2 Deep Transmission Filter | 2001-2015 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

AFE Power

AFE 44-TF006 Pro-Guard D2 Deep Transmission Filter | 2001-2015 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: AFE44-TF006
Price
$51.45
SunCoast A1-FLT-LOC-S Allison Shallow Pan Filter Loc | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
SunCoast A1-FLT-LOC-S Allison Shallow Pan Filter Loc | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SunCoast Performance

SunCoast A1-FLT-LOC-S Allison Shallow Pan Filter Loc | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: SUNA1-FLT-LOC-S
Sale price
$37.83
Regular price
$40
SunCoast A1-BC2 Allison Billet C2 Clutch Hub | 2004-2019 GM Silverado/Sierra 2500HD/3500HD
SunCoast A1-BC2 Allison Billet C2 Clutch Hub | 2004-2019 GM Silverado/Sierra 2500HD/3500HD

SunCoast Performance

SunCoast A1-BC2 Allison Billet C2 Clutch Hub | 2004-2019 GM Silverado/Sierra 2500HD/3500HD

SKU: SUNA1-BC2
Sale price
$606.25
Regular price
$625
SunCoast T116002ASC Complete Gasket Overhaul Kit | 2001-2017 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
SunCoast T116002ASC Complete Gasket Overhaul Kit | 2001-2017 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SunCoast Performance

SunCoast T116002ASC Complete Gasket Overhaul Kit | 2001-2017 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: SUNT116002ASC
Price
$363.75
SunCoast GM-1057-3D 1,700-1,800 RPM Stall Triple Disk | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
SunCoast GM-1057-3D 1,700-1,800 RPM Stall Triple Disk | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SunCoast Performance

SunCoast GM-1057-3D 1,700-1,800 RPM Stall Triple Disk | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: SUNGM-1057-3D
Sale price
$1,527.75
Regular price
$1,755
SunCoast GM-1072-3D Speed Torque Converter | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
SunCoast GM-1072-3D Speed Torque Converter | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SunCoast Performance

SunCoast GM-1072-3D Speed Torque Converter | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: SUNGM-1072-3D
Sale price
$1,799.35
Regular price
$1,815

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DIESEL TRUCK EXPERTS STANDING BY

If you've thrown on some high-performance mods on your 2001-2004 GM 6.6L Duramax, your transmission and Transfer case will feel the strain of increased horsepower and torque to your truck's entire drivetrain. Our premium transmission upgrades for your GM 2500HD/3500HD truck ensures your transmission stays in one place when you add on a ton power for improved drivability and towing capability. Here at Alligator Performance, we offer transmission upgrades such as transmission pans, torque converters, flex plates, modules, and even complete transmissions to give your 6.6L Duramax consistent performance you can count on! Our excellent transfer case help keep the heart of your 4x4 system reliable and high performing to tackle any terrain in your path! Pair your transmission and transfer case upgrades with our full array of Engine Upgrades and Fuel System Upgrades! GM Duramax Fitments: 2001, 2002, 2003, 2004 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.

GM Duramax>2001-2004 6.6L LB7

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