Gearstar Performance Transmissions

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SFI Flexplate LS Engine 8 bolt Crankshaft, crankshaft, gearstar performance transmissions

Gearstar Performance Transmissions

SFI Flexplate LS Engine 8 bolt Crankshaft

$139.99

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Gearstar Performance Transmissions

Flexplate Pro Series Sfi 29.1 Mopar Gen III

$219.99

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Ford E4OD 4X4 Small Block Ford Bellhousing Level 4, Transmissions, Gearstar Performance Transmissions

Ford E4OD 4X4 Small Block Ford Bellhousing Level 4

Gearstar Performance Transmissions

Ford E4OD 4X4 Small Block Ford Bellhousing Level 4

$8,495.00

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Ford 4R70W 2WD 3 Bolt Starter Level 5, Transmissions, Gearstar Performance Transmissions

Ford 4R70W 2WD 3 Bolt Starter Level 5

Gearstar Performance Transmissions

Ford 4R70W 2WD 3 Bolt Starter Level 5

$8,995.00

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Ford 4R70W 2WD 2 Bolt Starter Level 5, Transmissions, Gearstar Performance Transmissions

Ford 4R70W 2WD 2 Bolt Starter Level 5

Gearstar Performance Transmissions

Ford 4R70W 2WD 2 Bolt Starter Level 5

$8,995.00

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Mopar 727 2WD Level 4, Transmissions, Gearstar Performance Transmissions

Gearstar Performance Transmissions

Mopar 727 2WD Level 4

$8,495.00

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Ford E4OD Small Block Ford 2WD Level 4, Transmissions, Gearstar Performance Transmissions

Ford E4OD Small Block Ford 2WD Level 4, Transmissions, Gearstar Performance Transmissions

Gearstar Performance Transmissions

Ford E4OD Small Block Ford 2WD Level 4

$8,495.00

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Ford 4R70W 2WD 2 Bolt Starter Level 4, Transmissions, Gearstar Performance Transmissions

Ford 4R70W 2WD 2 Bolt Starter Level 4

Gearstar Performance Transmissions

Ford 4R70W 2WD 2 Bolt Starter Level 4

$6,995.00

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Ford 4R70W 2WD 2 Bolt Starter Level 3, Transmissions, Gearstar Performance Transmissions

Ford 4R70W 2WD 2 Bolt Starter Level 3

Gearstar Performance Transmissions

Ford 4R70W 2WD 2 Bolt Starter Level 3

$5,995.00

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Ford 4R70W 2WD 2 Bolt Starter Level 2, Transmissions, Gearstar Performance Transmissions

Ford 4R70W 2WD 2 Bolt Starter Level 2

Gearstar Performance Transmissions

Ford 4R70W 2WD 2 Bolt Starter Level 2

$4,995.00

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Chevrolet 4L70E 2WD Level 5, Transmissions, Gearstar Performance Transmissions

Chevrolet 4L70E 2WD Level 5

Gearstar Performance Transmissions

Chevrolet 4L70E 2WD Level 5

$6,495.00

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Carburetor TV Linkage Corrector Kit, Parts and Accessories, Gearstar Performance Transmissions

Carburetor TV Linkage Corrector Kit

$39.99

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Ford AOD 2WD Level 4, Transmissions, Gearstar Performance Transmissions

Gearstar Performance Transmissions

Ford AOD 2WD Level 4

$7,995.00

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Ford AOD 2WD Level 3, Transmissions, Gearstar Performance Transmissions

Gearstar Performance Transmissions

Ford AOD 2WD Level 3

$6,495.00

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Mopar 727 2WD Level 3, Transmissions, Gearstar Performance Transmissions

Gearstar Performance Transmissions

Mopar 727 2WD Level 3

$6,995.00

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Chevrolet Supermatic 4L85E 2WD Level 5 Pro Series, Transmissions, Gearstar Performance Transmissions

Chevrolet Supermatic 4L85E 2WD Level 5 Pro Series

Gearstar Performance Transmissions

Chevrolet Supermatic 4L85E 2WD Level 5 Pro Series

$19,995.00

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Chevrolet Supermatic 4L85E 2WD Level 4, Transmissions, Gearstar Performance Transmissions

Chevrolet Supermatic 4L85E 2WD Level 4

Gearstar Performance Transmissions

Chevrolet Supermatic 4L85E 2WD Level 4

$9,495.00

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Chevrolet Supermatic 4L85E 4X4 Level 5, Transmissions, Gearstar Performance Transmissions

Chevrolet Supermatic 4L85E 4X4 Level 5, Transmissions, Gearstar Performance Transmissions

Gearstar Performance Transmissions

Chevrolet Supermatic 4L85E 4X4 Level 5

$14,445.00

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Chevrolet Supermatic 4L85E 4X4 Level 4, Transmissions, Gearstar Performance Transmissions

Chevrolet Supermatic 4L85E 4X4 Level 4

Gearstar Performance Transmissions

Chevrolet Supermatic 4L85E 4X4 Level 4

$9,495.00

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Chevrolet 4L85E 2WD Level 3, Transmissions, Gearstar Performance Transmissions

Chevrolet 4L85E 2WD Level 3

Gearstar Performance Transmissions

Chevrolet 4L85E 2WD Level 3

$8,495.00

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Trusted By The Best

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Ford Transmissions

Ford Transmissions

Gearstar Converter

I have been using Gearstar transmissions for the better part of 15 years, in many of the projects here at SportsFab in Milford MI.  Not once have I ever had one come back defective, in any way!

MICHAEL BEGLEY

You would be hard pressed to find a group of guys that know more about transmissions. We are blessed to work with them, and they build a quality piece that you can always count on.

BRIAN DOWANRD

Gearstar provided me with one of the best automotive purchases I’ve ever made. A custom built 4L80E transmission for my 800 HP street / Strip Camaro. Highly recommended if you want the best.

JASON FAULCONER

ONE TRANSMISSION, ONE BUILDER,
FROM START TO FINISH

Each and every transmission is custom built by one master technician.

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DYNO TESTING

Every transmission and converter are dyno tested for the equivalent of 100 miles, to ensure they are operating perfectly before leaving our shop.

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Our Testimonials

ENGINEERED TO PERFORM

All Gearstar transmissions and converters are hand-built to the highest industry standards, using the highest quality US-made parts and components.

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Gearstar Videos

Latest Blog

Press Jun 15, 2025

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Gear Star Takes Us on an Inside Tour of its Performance Automatic Transmissions. Enthusiasts can be...

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Super Chevy

GearStar's Level 3 200-4R Transmission mated with Yank’s 10-inch Lock up Converter can handle...

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