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GM / Chevy Transmission Parts

Shop all GM and Chevrolet automatic transmission parts in one place. That covers the 4L60E, 4L60 / 700R4, 4L80E, 6L80 / 6L90, 8L90, 8L45, 10L80 / 10L90 and the Allison 10L1000. We carry overhaul an...

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GM / Chevy Transmission Parts

Shop all GM and Chevrolet automatic transmission parts in one place. That covers the 4L60E, 4L60 / 700R4, 4L80E, 6L80 / 6L90, 8L90, 8L45, 10L80 / 10L90 and the Allison 10L1000. We carry overhaul and master rebuild kits, friction and steel clutch plates, seals and gaskets, solenoids, filters, bushings, pistons, valve body parts and hard parts.

Use the search bar to find a part by number or keyword, or pick your transmission to narrow the list. Every part lists its fitment and part number so you can match it to your build.

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6T40 Used / 6T45 Baffle U144698 - automatic transmission case parts
$28.87 - $28.87
$28.87
$28.87 - $28.87
$28.87

6T40 Used / 6T45 Baffle U144698

Used Baffle for 6T40 automatic transmissions. Part # U144698 from Quality Used Parts. Chain; Plastic, Cast # 24246165. Part #: U144698 Brand: Qua...

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$28.87 - $28.87
$28.87
$28.87 - $28.87
$28.87
6T40 Used / 6T45 Input Shaft U144670C - automatic transmission shafts
$53.38 - $53.38
$53.38
$53.38 - $53.38
$53.38

6T40 Used / 6T45 Input Shaft U144670C

Used Input Shaft for 6T30 automatic transmissions. Part # U144670C from Quality Used Parts. 10-1/4 Long. Part #: U144670C Brand: Quality Used Par...

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$53.38 - $53.38
$53.38
$53.38 - $53.38
$53.38
6T40 / 6T45 Input Shaft D144670B - GM automatic transmission shafts
$54.79 - $54.79
$54.79
$54.79 - $54.79
$54.79

6T40 / 6T45 Input Shaft D144670B

Input Shaft for 6T40 automatic transmissions. Part # D144670B from GM. 10-9/16" Long, 1/2" Long Pilot. Part #: D144670B Brand: GM Part type: Sha...

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$54.79 - $54.79
$54.79
$54.79 - $54.79
$54.79
6T40 Used / 6T45 Input Shaft U144670 - automatic transmission shafts
$37.06 - $37.06
$37.06
$37.06 - $37.06
$37.06

6T40 Used / 6T45 Input Shaft U144670

Used Input Shaft for 6T30, 6T35, 6T40 automatic transmissions. Part # U144670 from Quality Used Parts. 10-5/16" Long, 1/2" Long Pilot. Part #: U14...

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$37.06 - $37.06
$37.06
$37.06 - $37.06
$37.06
6T40 Used / 6T45 Input Shaft U144670B - automatic transmission shafts
$35.65 - $35.65
$35.65
$35.65 - $35.65
$35.65

6T40 Used / 6T45 Input Shaft U144670B

Used Input Shaft for 6T40 automatic transmissions. Part # U144670B from Quality Used Parts. 10-9/16" Long, 1/2" Long Pilot. Part #: U144670B Bran...

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$35.65 - $35.65
$35.65
$35.65 - $35.65
$35.65
6T40 / 6T45 Sprag Assembly D144644C - GM automatic transmission sprags & one way clutches - view 1 of 4
$232.56 - $232.56
$232.56
$232.56 - $232.56
$232.56

6T40 / 6T45 Sprag Assembly D144644C

Sprag Assembly for 6T30 automatic transmissions. Part # D144644C from GM. Low. Part #: D144644C Brand: GM Part type: Sprags & One Way Clutch...

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$232.56 - $232.56
$232.56
$232.56 - $232.56
$232.56
6T40 Used / 6T45 Low Diode U144644 - automatic transmission sprags & one way clutches
$152.60 - $152.60
$152.60
$152.60 - $152.60
$152.60

6T40 Used / 6T45 Low Diode U144644

Used Low Diode for 6T40, 6T45 automatic transmissions. Part # U144644 from Quality Used Parts. Gen1 and Gen 2 Type; 0.709" Thick Outer Race. Part ...

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$152.60 - $152.60
$152.60
$152.60 - $152.60
$152.60
6T40 / 6T45 Low Diode D144644 - GM automatic transmission sprags & one way clutches - view 1 of 4
$298.75 - $298.75
$298.75
$298.75 - $298.75
$298.75

6T40 / 6T45 Low Diode D144644

Low Diode for 6T40, 6T45 automatic transmissions. Part # D144644 from GM. Gen1 and Gen 2 Type; 0.709" Thick Outer Race. Part #: D144644 Brand: GM...

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$298.75 - $298.75
$298.75
$298.75 - $298.75
$298.75
Adapter Fitting for 1000/M74, 1000 116996LA - FITZALL automatic transmission tools
$44.34 - $44.34
$44.34
$44.34 - $44.34
$44.34

Adapter Fitting for 1000/M74, 1000 116996LA - Fits Allison 1000 / 2000

Adapter Fitting for 1000/M74, 1000 transmissions. Part # 116996LA from FITZALL, a specialty transmission tool for rebuilders and transmission shops...

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$44.34 - $44.34
$44.34
$44.34 - $44.34
$44.34
ATSG 1000/M74 / 1000 Transmission Repair Manual 121400 - automatic transmission technical manuals
$38.59 - $38.59
$38.59
$38.59 - $38.59
$38.59

ATSG 1000/M74 / 1000 Transmission Repair Manual 121400 - Fits Allison 1000 / 2000

ATSG technical repair manual for Allison 1000 / 2000 automatic transmissions. Covers transmission identification, disassembly, inspection, rebuild ...

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$38.59 - $38.59
$38.59
$38.59 - $38.59
$38.59
Bore Sizing Tool for 1000/M74, 1000 37000-02BST - Sonnax automatic transmission tools
$99.60 - $99.60
$99.60
$99.60 - $99.60
$99.60

Bore Sizing Tool for 1000/M74, 1000 37000-02BST - Fits Allison 1000 / 2000

Bore Sizing Tool for 1000/M74, 1000 transmissions. Part # 37000-02BST from Sonnax, a specialty transmission tool for rebuilders and transmission sh...

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$99.60 - $99.60
$99.60
$99.60 - $99.60
$99.60
Sonnax Transmission Specialty Tool for 1000/M74, 1000 T-F-37000-TL19 - automatic transmission specialty tools
$316.27 - $316.27
$316.27
$316.27 - $316.27
$316.27

Sonnax Transmission Specialty Tool for 1000/M74, 1000 T-F-37000-TL19 - Fits Allison 1000 / 2000

Sonnax Transmission Specialty Tool for 1000/M74, 1000 transmissions. Part # T-F-37000-TL19 from Sonnax, a specialty transmission tool for rebuilder...

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$316.27 - $316.27
$316.27
$316.27 - $316.27
$316.27
Valve Body Vacuum Test Plate Kit for 1000/M74, 1000, 2000LCT T-37000-VTP - Sonnax automatic transmission tools
$407.29 - $407.29
$407.29
$407.29 - $407.29
$407.29

Valve Body Vacuum Test Plate Kit for 1000/M74, 1000, 2000LCT T-37000-VTP - Fits Allison 1000 / 2000

Valve Body Vacuum Test Plate Kit for 1000/M74, 1000, 2000LCT, 2400LCT transmissions. Part # T-37000-VTP from Sonnax, a specialty transmission tool ...

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$407.29 - $407.29
$407.29
$407.29 - $407.29
$407.29
Metal Clad Seal 714C070 - Fits 4R100, 5R110W, 6R140, 45RFE / 545RFE, 46RE / 47RE / 48RE, 42RLE - Dana / Spicer automatic
$29.02 - $29.02
$29.02
$29.02 - $29.02
$29.02

Metal Clad Seal 714C070 - Fits 4R100, 5R110W, 6R140, 45RFE / 545RFE, 46RE / 47RE / 48RE, 42RLE, Allison 1000 / 2000

Metal Clad Seal for 4R100, 5R110W, 6R140, 45RFE / 545RFE, 46RE / 47RE / 48RE, 42RLE and Allison 1000 / 2000 automatic transmissions. Part # 714C070...

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$29.02 - $29.02
$29.02
$29.02 - $29.02
$29.02
Axle Seal 716F076A - Fits 4R100, 5R110W, 4R70W, 6R140, E4OD - TransJel automatic transmission metal clad seals - view 1 of 3
$26.46 - $26.46
$26.46
$26.46 - $26.46
$26.46

Axle Seal 716F076A - Fits 4R100, 5R110W, 4R70W, 6R140, E4OD, Allison 1000 / 2000, C4 / C5, AOD / AODE, C6

Axle Seal for 4R100, 5R110W, 4R70W, 6R140, E4OD, Allison 1000 / 2000, C4 / C5, AOD / AODE and C6 automatic transmissions. Part # 716F076A from Tran...

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$26.46 - $26.46
$26.46
$26.46 - $26.46
$26.46
Pinion Seal 765B070 - Fits 4R100, 5R110W, 6R140, 45RFE, 545RFE - Dana / Spicer automatic transmission metal clad seals
$56.96 - $56.96
$56.96
$56.96 - $56.96
$56.96

Pinion Seal 765B070 - Fits 4R100, 5R110W, 6R140, 45RFE / 545RFE, Allison 1000 / 2000

Pinion Seal for 4R100, 5R110W, 6R140, 45RFE / 545RFE and Allison 1000 / 2000 automatic transmissions. Part # 765B070 from Dana / Spicer. Part #: 7...

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$56.96 - $56.96
$56.96
$56.96 - $56.96
$56.96
Pinion Bearing Cone 765B250 - Fits 4R100, 5R110W, 6R140, 45RFE, 545RFE - Koyo automatic transmission axle bearings & seals
$34.81 - $34.81
$34.81
$34.81 - $34.81
$34.81

Pinion Bearing Cone 765B250 - Fits 4R100, 5R110W, 6R140, 45RFE / 545RFE, Allison 1000 / 2000

Pinion Bearing Cone for 4R100, 5R110W, 6R140, 45RFE / 545RFE and Allison 1000 / 2000 automatic transmissions. Part # 765B250 from Koyo. 4.375" OD x...

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$34.81 - $34.81
$34.81
$34.81 - $34.81
$34.81
Sonnax Transmission Tool Kit for 1000 T-F-37000-TL33 - automatic transmission specialty tools
$834.10 - $834.10
$834.10
$834.10 - $834.10
$834.10

Sonnax Transmission Tool Kit for 1000 T-F-37000-TL33 - Fits Allison 1000 / 2000

Sonnax Transmission Tool Kit for 1000 transmissions. Part # T-F-37000-TL33 from Sonnax, a specialty transmission tool for rebuilders and transmissi...

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$834.10 - $834.10
$834.10
$834.10 - $834.10
$834.10
Sonnax Transmission Tool Kit for 1000 T-F-37000-TL35 - automatic transmission specialty tools
$1,062.30 - $1,062.30
$1,062.30
$1,062.30 - $1,062.30
$1,062.30

Sonnax Transmission Tool Kit for 1000 T-F-37000-TL35 - Fits Allison 1000 / 2000

Sonnax Transmission Tool Kit for 1000 transmissions. Part # T-F-37000-TL35 from Sonnax, a specialty transmission tool for rebuilders and transmissi...

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$1,062.30 - $1,062.30
$1,062.30
$1,062.30 - $1,062.30
$1,062.30
Sonnax Transmission Tool Kit for 1000 T-F-37000-TL37 - automatic transmission specialty tools
$962.80 - $962.80
$962.80
$962.80 - $962.80
$962.80

Sonnax Transmission Tool Kit for 1000 T-F-37000-TL37 - Fits Allison 1000 / 2000

Sonnax Transmission Tool Kit for 1000 transmissions. Part # T-F-37000-TL37 from Sonnax, a specialty transmission tool for rebuilders and transmissi...

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$962.80 - $962.80
$962.80
$962.80 - $962.80
$962.80
6T40 / 6T45 Ring Tower / Hub D144634A - GM automatic transmission supports - view 1 of 2
$63.80 - $63.80
$63.80
$63.80 - $63.80
$63.80

6T40 / 6T45 Ring Tower / Hub D144634A

Ring Tower / Hub for 6T40, 6T45, 6T50, AF50-8 automatic transmissions. Part # D144634A from GM. 4-5-6; Updated 3 Ring Type; Use with 144550A to Upd...

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$63.80 - $63.80
$63.80
$63.80 - $63.80
$63.80
6T40 / 6T45 Ring Tower / Hub D144634 - GM automatic transmission supports - view 1 of 3
$173.24 - $173.24
$173.24
$173.24 - $173.24
$173.24

6T40 / 6T45 Ring Tower / Hub D144634

Ring Tower / Hub for 6T40, 6T45 automatic transmissions. Part # D144634 from GM. 4-5-6; 4 Ring Type, 3 Bolt to Case. Part #: D144634 Brand: GM P...

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$173.24 - $173.24
$173.24
$173.24 - $173.24
$173.24
6T40 / 6T45 Ring Tower / Hub A144634A - TransJel automatic transmission supports
$69.45 - $69.45
$69.45
$69.45 - $69.45
$69.45

6T40 / 6T45 Ring Tower / Hub A144634A

Ring Tower / Hub for 6T40, 6T45, 6T50, AF50-8 automatic transmissions. Part # A144634A from TransJel. 4-5-6, Updated, 3 Ring Land Type; Use with 14...

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$69.45 - $69.45
$69.45
$69.45 - $69.45
$69.45
6T40 / 6T45 Support A144632 - TransJel automatic transmission supports
$186.68 - $186.68
$186.68
$186.68 - $186.68
$186.68

6T40 / 6T45 Support A144632

Support for 6T30, 6T40, 6T45, 6T50 automatic transmissions. Part # A144632 from TransJel. Low/Reverse & 1-4 Clutch, Housing only. Part #: A144...

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$186.68 - $186.68
$186.68
$186.68 - $186.68
$186.68

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