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Shop Chevy/GMC Transmission Parts

Whether you're looking for parts for the trusted Allison 1000 automatic transmission or the versatile ZF-6 Speed manual transmission PDP has you covered.

Looking for transfer cases & parts? Click here!

Brand: Dirty Hooker Diesel Part Number: 115-510
NEW Design, Steel DIN construction, Does not accept GM compartmental parts or OE switches. DHD 115-510 Dirty Alli-Locker 5-Speed Torque Converter Lockup SwitchThe DHD Dirty Alli-Locker torque converter lockup switch was designed to be an exact fix for the ever long pursuit of true lockup contro..
$219.00
Brand: Dirty Hooker Diesel Part Number: 115-510U
DHD 115-510U Dirty Alli-Locker 5-Speed Torque Converter Lockup SwitchThe DHD Dirty Alli-Locker torque converter lockup switch was designed to be an exact fix for the ever long pursuit of true lockup controller that will work 100% of the time. After countless troubles with different aftermarket kits ..
$199.00
Brand: Firepunk Diesel Part Number: FD0xA750x
2001-2005 Firepunk Proven A750 Allison Transmission Features: Great For Mildly Modified Trucks Up To 750HP 2-Year Unlimited Mileage, 100% Workmanship Warranty Build List: Upgraded Flex Plate DPC Triple Disk Converter Filter Lock Bearing Kit New Filters Transgo and Rat..
$6,995.00
Brand: Firepunk Diesel Part Number: FD0xA900x
2001-2005 Firepunk Proven A900 Allison Transmission Features: Great For Mildly Modified Trucks Up To 900HP 2-Year Unlimited Mileage, 100% Workmanship Warranty Build List: Upgraded Flex Plate DPC Triple Disk Converter Filter Lock Bearing Kit New Filters Transgo and Rat..
$8,495.00
Brand: Fleece Performance Part Number: FPE-TL-LB7-LLY
Replace your leaking transmission lines with our heavy duty, high flow, flexible transmission lines. Our kit is the most complete replacement transmission line kit available for your LB7 or LLY truck!  It includes all of the necessary fittings whether your truck is running a stock radiator or S..
$269.00
Brand: Fleece Performance Part Number: FPE-TL-LB7-LLY-SHORT-SER
Replacement Transmission Cooler Line (short line) for the Fleece Performance Allison Transmission Cooler Line Kit (FPE-TL-LB7-LLY). For use on model year 2001-2005 LB7-LLY trucks. APPLICATION NOTES This is a single replacement line only.  It does not include any fittings or additional compo..
$75.99
Brand: Dirty Hooker Diesel Part Number: 100-175
DHD 100-175 GM Allison Transfer Case Support Brace 2001-2007 Classic Body This support can keep your Allison four wheel drive housing from cracking in the event of a driveline vibration (bad u-joint, dented or bent driveshaft) or on high horsepower pickups. This brace is our super heavy duty vers..
$145.00
Brand: Dirty Hooker Diesel Part Number: 100-185
DHD 100-185 ZF6 Transmission Rear Housing Support 2001-2006 Classic (T-Case Brace) This support can keep your adapter housing from cracking in the event of a driveline vibration (bad u-joint, dented or bent driveshaft) or on high horsepower pickups. This brace is our standard unit that is powder ..
$145.00
Brand: Fleece Performance Part Number: FPE-TL-LB7-LMM-LONG-SER
Replacement Transmission Cooler Line (longest length line) for the Fleece Performance Allison Transmission Cooler Line Kits FPE-TL-LB7-LLY and FPE-TL-LBZ-LMM. For use on model year 2001-2010 LB7, LLY, LBZ, and LMM trucks. APPLICATION NOTES This is a single replacement line only.  It does no..
$134.99
Brand: Fleece Performance Part Number: FPE-TL-LB7-LMM-MED-SER
Replacement Transmission Cooler Line (medium length line) for the Fleece Performance Allison Transmission Cooler Line Kits FPE-TL-LB7-LLY and FPE-TL-LBZ-LMM. For use on model year 2001-2010 LB7, LLY, LBZ, and LMM trucks. APPLICATION NOTES This is a single replacement line only.  It does not..
$94.99
Brand: ATS Diesel Performance Part Number: 304-910-4248
Fits: 2001-2010 6.6L Duramax LB7/LLY/LBZ/LMMThis billet steel input shaft is made to fix a weak link in your GM Duramax truck with Allison transmission.Details:Input Shaft - Billet SteelFits Allison TransmissionSolves common breakage issuesStrong, durable and reliableBillet Steel ConstructionSo..
$793.00
Brand: Dirty Hooker Diesel Part Number: 100-255
Is your Allison transmission leaking fluid around the wiring harness connector? This could be caused by a few different flaws. A. Your internal harness is allowing fluid to pass the wiring terminals within the connector. B. The O-ring sealing the pass thought harness body to the transmission cas..
$25.00
Brand: Firepunk Diesel Part Number: FD0xA750x
2006-2007 Firepunk Proven A750 Allison Transmission Features: Great For Mildly Modified Trucks Up To 750HP 2-Year Unlimited Mileage, 100% Workmanship Warranty Build List: Upgraded Flex Plate DPC Triple Disk Converter Filter Lock Bearing Kit New Filters Transgo and Rat..
$6,995.00
Brand: Firepunk Diesel Part Number: FD0xA900x
2006-2007 Firepunk Proven A900 Allison Transmission Features: Great For Mildly Modified Trucks Up To 900HP 2-Year Unlimited Mileage, 100% Workmanship Warranty Build List: Upgraded Flex Plate DPC Triple Disk Converter Filter Lock Bearing Kit New Filters Transgo and Ratio..
$8,495.00
Brand: Fleece Performance Part Number: FPE-TL-LBZ-LMM
Replace your leaking transmission lines with our heavy duty, high flow, flexible transmission lines. Our kit is the most complete replacement transmission line kit available for your LBZ or LMM truck!  It includes all of the necessary fittings whether your truck is running a stock radiator or S..
$269.00
Brand: Fleece Performance Part Number: FPE-TL-LBZ-LMM-SHORT-SER
Replacement Transmission Cooler Line (short line) for the Fleece Performance Allison Transmission Cooler Line Kit FPE-TL-LBZ-LMM. For use on model year 2006-2010 LBZ and LMM trucks. APPLICATION NOTES This is a single replacement line only.  It does not include any fittings or additional com..
$75.99
Brand: Firepunk Diesel Part Number: FDxxA750x
2007.5-2010 Firepunk Proven A750 Allison Transmission Features: Great For Mildly Modified Trucks Up To 750HP 2-Year Unlimited Mileage, 100% Workmanship Warranty Build List: Upgraded Flex Plate DPC Triple Disk Converter Filter Lock Bearing Kit New Filters Transgo and Rat..
$6,995.00
Brand: Firepunk Diesel Part Number: FDxxA900x
2007.5-2010 Firepunk Proven A900 Allison Transmission Features: Great For Mildly Modified Trucks Up To 750HP 2-Year Unlimited Mileage, 100% Workmanship Warranty Build List: Upgraded Flex Plate DPC Triple Disk Converter Filter Lock Bearing Kit New Filters Transgo and R..
$8,495.00
Brand: Dirty Hooker Diesel Part Number: 100-180
DHD 100-180 GM Alllison Transfer Case Support Brace 2008-2010 New Body LMM This support can keep your Allison four wheel drive housing from cracking in the event of a driveline vibration (bad u-joint, dented or bent driveshaft) or on high horsepower pickups. This brace is our super heavy duty ver..
$145.00
Brand: Firepunk Diesel Part Number: FD1xA750x
2011-2016 Firepunk Proven A750 Allison Transmission Features: Great For Mildly Modified Trucks Up To 750HP 2-Year Unlimited Mileage, 100% Workmanship Warranty Build List: Upgraded Flex Plate DPC Triple Disk Converter Filter Lock Bearing Kit New Filters Transgo and Ratio..
$6,995.00
Brand: Firepunk Diesel Part Number: FD1xA900x
2011-2016 Firepunk Proven A900 Allison Transmission Features: Great For Mildly Modified Trucks Up To 900HP 2-Year Unlimited Mileage, 100% Workmanship Warranty Build List: Upgraded Flex Plate DPC Triple Disk Converter Filter Lock Bearing Kit New Filters Transgo and Ratio..
$8,495.00
Brand: RevMax Part Number: A1000-303
In need of a new or upgraded valve body for your LML Duramax? Our friends over at Revmax have you covered! ALLISON 1000 High Performance, Rebuilt, Updated Valve Body Specially Calibrated For Use With Revmax Level 2, 3, 4 and 5 Torque Converters (can be used with other manufactures torque co..
$899.00
Brand: Dirty Hooker Diesel Part Number: 100-190
DHD 100-190 GM Allison Transfer Case Support Brace 2011-2019 LML L5P 2500/3500 Trucks This support can help prevent your Allison extension housing from cracking in the event of a driveline vibration (bad u-joint, dented or bent driveshaft). This brace is a great addition to any pull, drag or week..
$145.00
Brand: RevMax Part Number: 10L1000-600
The new 10 speed Allison is a work of art. As a joint effort between GM and Ford, this engineering marvel is something from the future. Extremely compact and lightweight for its torque capacity yet packing 10 speeds! As strong as this unit is in factory form it still cannot tolerate elevated powe..
$2,195.00
Brand: Pacific Performance Engineering Part Number: 1280514x0
The Allison transmission has a reputation for performance and longevity. Now that it is available as the 10L1000, the reputation continues. Get the best protection and performance out of your 10L1000 by upgrading to the PPE Heavy-Duty Cast Aluminum Deep Transmission pan. The deep PPE Pan Increase..
$359.99
Brand: Firepunk Diesel Part Number: FDFAB-UTCM
These cooler brackets have over 90 degrees of adjustment, so whether you are mounting them in your bed or underneath your truck you should be able to mount your cooler horizontally, vertically, or anywhere in between.   -Designed to fit most transmission coolers. -Overall length of the coole..
$125.00
Brand: Dirty Hooker Diesel Part Number: 100-195
Protect your Allison spin on transmission filter with DHD's 1pc fabricated filter guard. These guards are designed to deflect road debris and minimize filter shell degradation. Quick, Easy and effective protection for those demanding the most performance and durability from their Duramax trucks. The..
$79.00
Brand: Derale Cooling Products Part Number: 15870
Our most efficient remote cooler yet, the Hyper-Cool Extreme is designed to outperform the competition in every aspect of its unique design. The combination of our largest and most efficient 40-row stack plate cooler equipped with an 800 CFM waterproof/dustproof electric fan makes this remote cooler..
$419.99
Brand: BD Power Part Number: 1030606-DS-12
Large surface area to transfer heat for external air flow cooling Turbulent oil flow design promotes a more complete cooling Large 5/8-inch ports prevents inlet/outlet restriction Furnace brazed rails have been tested to 300psi of pressure Thermostatically controlled 80-watt, 10-inch, 800 CFM el..
$1,050.95
Brand: XDP Mfg Part Number: XD309
The XDP X-TRA Cool Direct-Fit Transmission Oil Cooler XD309 is a direct upgrade for the factory transmission oil cooler in your 2001-2005 GM 6.6L Duramax LB7/LLY.  XDP’s XTRA-Cool Transmission Oil Coolers are made using techniques borrowed from the HD and semi-truck industry to provide you with the ..
$205.95
Brand: XDP Mfg Part Number: XD310
Upgrade the factory transmission cooler in your 2006-2010 GM 6.6L Duramax LBZ/LMM with the XDP X-TRA Cool Direct-Fit Transmission Oil Cooler XD310. Manufactured to provide you with the ultimate in strength and durability, XDP’s X-TRA Cool Transmission Oil Coolers are made using techniques borrowed f..
$245.95
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