1978 GMC C15 Auto Trans Flexplates
Save up to 40% on original replacement 1978 GMC C15 Auto Trans Flexplates. Navigate our online catalogue to find Auto Trans Flexplates and other parts designed specifically to fit a 1978 GMC C15.
Auto Trans Flexplate
$69.51
$66.64
In Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); Transmission Control Type: Automatic;
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Normal Duty; For internally balanced engine with 2 piece crank seal; 11.25" Torque converter mounting hole spread Teeth: 168 Outer Diameter: 14.13" Inner Diameter: 2.49" Bolt Hole Size: 5/16"
Normal Duty; For internally balanced engine with 2 piece crank seal; 11.25" Torque converter mounting hole spread Teeth: 168 Outer Diameter: 14.13" Inner Diameter: 2.49" Bolt Hole Size: 5/16"
Auto Trans Flexplate
$69.51
$66.64
In Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Transmission Control Type: Automatic;
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Normal Duty; For internally balanced engine with 2 piece crank seal; 11.25" Torque converter mounting hole spread Teeth: 168 Outer Diameter: 14.13" Inner Diameter: 2.49" Bolt Hole Size: 5/16"
Normal Duty; For internally balanced engine with 2 piece crank seal; 11.25" Torque converter mounting hole spread Teeth: 168 Outer Diameter: 14.13" Inner Diameter: 2.49" Bolt Hole Size: 5/16"
Auto Trans Flexplate
$69.51
$66.64
In Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Control Type: Automatic;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Normal Duty; For internally balanced engine with 2 piece crank seal; 11.25" Torque converter mounting hole spread Teeth: 168 Outer Diameter: 14.13" Inner Diameter: 2.49" Bolt Hole Size: 5/16"
Normal Duty; For internally balanced engine with 2 piece crank seal; 11.25" Torque converter mounting hole spread Teeth: 168 Outer Diameter: 14.13" Inner Diameter: 2.49" Bolt Hole Size: 5/16"
Auto Trans Flexplate
$69.51
$66.64
In Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0); Transmission Control Type: Automatic;
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Normal Duty; For internally balanced engine with 2 piece crank seal; 11.25" Torque converter mounting hole spread Teeth: 168 Outer Diameter: 14.13" Inner Diameter: 2.49" Bolt Hole Size: 5/16"
Normal Duty; For internally balanced engine with 2 piece crank seal; 11.25" Torque converter mounting hole spread Teeth: 168 Outer Diameter: 14.13" Inner Diameter: 2.49" Bolt Hole Size: 5/16"
Auto Trans Flexplate
$78.97
$62.92
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); Transmission Control Type: Automatic;
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Normal Duty; For externally balanced engine; 11.50" Torque converter mounting hole spread Teeth: 168 Outer Diameter: 14.13"
Normal Duty; For externally balanced engine; 11.50" Torque converter mounting hole spread Teeth: 168 Outer Diameter: 14.13"
Auto Trans Flexplate
$78.97
$62.92
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); Transmission Control Type: Automatic;
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Normal Duty; For externally balanced engine; 11.50" Torque converter mounting hole spread Teeth: 168 Outer Diameter: 14.13" w/ Weight
Normal Duty; For externally balanced engine; 11.50" Torque converter mounting hole spread Teeth: 168 Outer Diameter: 14.13" w/ Weight
Auto Trans Flexplate
$104.28
$86.61
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Transmission Control Type: Automatic;
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Teeth: 168 Outer Diameter: 14.13"
Teeth: 168 Outer Diameter: 14.13"
Auto Trans Flexplate
$149.44
$126.58
Limited Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Transmission Control Type: Automatic; Transmission Code: THM400;
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Transmission Control Type: Automatic; Transmission Code: THM400;
Vehicle Fitment Notes:
Teeth: 168 Outer Diameter: 14"
Teeth: 168 Outer Diameter: 14"
Auto Trans Flexplate
$132.09
$110.29
Limited Stock
Ships: Monday Sep. 22nd
Pick-Up: Available for 8:30am Monday Sep. 22nd
Pick-Up: Available for 8:30am Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); Transmission Control Type: Automatic;
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Improved Heavy Duty Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16"
Improved Heavy Duty Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16"
Auto Trans Flexplate
$132.09
$110.29
Limited Stock
Ships: Monday Sep. 22nd
Pick-Up: Available for 8:30am Monday Sep. 22nd
Pick-Up: Available for 8:30am Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); Transmission Control Type: Automatic;
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Improved Heavy Duty Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16" HD Version
Improved Heavy Duty Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16" HD Version
Auto Trans Flexplate
$132.09
$110.29
Limited Stock
Ships: Monday Sep. 22nd
Pick-Up: Available for 8:30am Monday Sep. 22nd
Pick-Up: Available for 8:30am Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Transmission Control Type: Automatic;
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Improved Heavy Duty Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16"
Improved Heavy Duty Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16"
Auto Trans Flexplate
$132.09
$110.29
Limited Stock
Ships: Monday Sep. 22nd
Pick-Up: Available for 8:30am Monday Sep. 22nd
Pick-Up: Available for 8:30am Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Transmission Control Type: Automatic;
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Improved Heavy Duty Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16" HD Version
Improved Heavy Duty Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16" HD Version
Auto Trans Flexplate
$132.09
$110.29
Limited Stock
Ships: Monday Sep. 22nd
Pick-Up: Available for 8:30am Monday Sep. 22nd
Pick-Up: Available for 8:30am Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Control Type: Automatic;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Improved Heavy Duty Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16"
Improved Heavy Duty Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16"
Auto Trans Flexplate
$132.09
$110.29
Limited Stock
Ships: Monday Sep. 22nd
Pick-Up: Available for 8:30am Monday Sep. 22nd
Pick-Up: Available for 8:30am Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Control Type: Automatic;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Improved Heavy Duty Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16" HD Version
Improved Heavy Duty Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16" HD Version
Auto Trans Flexplate
$132.09
$110.29
Limited Stock
Ships: Monday Sep. 22nd
Pick-Up: Available for 8:30am Monday Sep. 22nd
Pick-Up: Available for 8:30am Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0); Transmission Control Type: Automatic;
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Improved Heavy Duty Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16"
Improved Heavy Duty Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16"
Auto Trans Flexplate
$132.09
$110.29
Limited Stock
Ships: Monday Sep. 22nd
Pick-Up: Available for 8:30am Monday Sep. 22nd
Pick-Up: Available for 8:30am Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0); Transmission Control Type: Automatic;
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Improved Heavy Duty Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16" HD Version
Improved Heavy Duty Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16" HD Version
Auto Trans Flexplate
$166.29
$102.83
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Control Type: Automatic;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Teeth: 135 Outer Diameter: 13.71"
Teeth: 135 Outer Diameter: 13.71"
Auto Trans Flexplate
$166.29
$102.83
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0); Transmission Control Type: Automatic;
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Teeth: 135 Outer Diameter: 13.71"
Teeth: 135 Outer Diameter: 13.71"
Auto Trans Flexplate
$205.18
$119.18
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Transmission Control Type: Automatic; Transmission Code: THM350;
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Transmission Control Type: Automatic; Transmission Code: THM350;
Vehicle Fitment Notes:
Teeth: 168 Outer Diameter: 14.13"
Teeth: 168 Outer Diameter: 14.13"
Auto Trans Flexplate
$205.18
$119.18
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Transmission Control Type: Automatic; Transmission Code: THM350;
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Transmission Control Type: Automatic; Transmission Code: THM350;
Vehicle Fitment Notes:
Teeth: 168 Outer Diameter: 14.13" w/o Weight
Teeth: 168 Outer Diameter: 14.13" w/o Weight
Auto Trans Flexplate
$260.74
$165.05
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); Transmission Control Type: Automatic;
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Improved Heavy Duty Teeth: 168 Outer Diameter: 14.13"
Improved Heavy Duty Teeth: 168 Outer Diameter: 14.13"
Auto Trans Flexplate
$260.74
$165.05
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); Transmission Control Type: Automatic;
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Improved Heavy Duty Teeth: 168 Outer Diameter: 14.13" w/Weight; Heavy Duty Flex Plate
Improved Heavy Duty Teeth: 168 Outer Diameter: 14.13" w/Weight; Heavy Duty Flex Plate
Auto Trans Flexplate
$164.07
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); Transmission Control Type: Automatic;
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Racing Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16"
Racing Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16"
Auto Trans Flexplate
$164.07
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Transmission Control Type: Automatic;
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Racing Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16"
Racing Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16"
Auto Trans Flexplate
$164.07
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Control Type: Automatic;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Racing Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16"
Racing Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16"
Auto Trans Flexplate
$164.07
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0); Transmission Control Type: Automatic;
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0); Transmission Control Type: Automatic;
Vehicle Fitment Notes:
Racing Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16"
Racing Teeth: 168 Outer Diameter: 14.13" Bolt Hole Size: 5/16"