Gearstar Performance Transmissions

Top Categories

Converters

Controllers

Flexplates

Dipsticks

Adapters

TV Cables

New Products

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

Gearstar Performance Transmissions

SFI Flexplate LS Engine 8 bolt Crankshaft

$139.99

Add to Cart

Gearstar Performance Transmissions

Flexplate Pro Series Sfi 29.1 Mopar Gen III

$219.99

Add to Cart

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

Options

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

Options

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

Options

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

Gearstar Performance Transmissions

Mopar 727 2WD Level 4

$8,495.00

Options

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

Options

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

Options

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

Options

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

Options

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

Options

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

Carburetor TV Linkage Corrector Kit

$39.99

Add to Cart

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

Gearstar Performance Transmissions

Ford AOD 2WD Level 4

$7,995.00

Options

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

Gearstar Performance Transmissions

Ford AOD 2WD Level 3

$6,495.00

Options

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

Gearstar Performance Transmissions

Mopar 727 2WD Level 3

$6,995.00

Options

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

Options

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

Options

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

Options

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

Options

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

Options

Trusted By The Best

Trusted By The Best

Shop by make

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.

tour our shop

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.

our warranty

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.

our testimonials

Shift Into High Performance

Sign Up Now for Exclusive

Gearstar Videos

Latest Blog

Press Jun 16, 2025

Ramrodder: Part 3

Makin' Mounts When we decided to build a street gasser there were only a few things we knew for sure...

Press Jun 15, 2025

Adapting To The Times

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

Press Jun 15, 2025

How Does This Shift Work?

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

Trusted by