Transmission & Drivetrain

Full Synthetic Transmission Fluid 12 x 1 Quart Bottles

Add shift quality, performance and durability to any automatic transmission by simply pouring in TCI Max Shift (ATF) Transmission Fluid.

HD/Race Rigid 6 Pad Kit

• "Excellence in Performance", backed by the best one-year warranty in the industry!

Heavy Duty Pressure Plate

• "Excellence in Performance", backed by the best one-year warranty in the industry!

Hot Rod 2-1/8" Gear Select W/OD

• Hot Rod
• With Overdrive
• Curved Glass Lens

Inspection Cover

• Hardware included

Mod-Twin 225 XT Sprung Race

• "Excellence in Performance", backed by the best one-year warranty in the industry!

Non-Adjustable Pivot Ball Stud

• Sold Individually
• Fits 1979-2014 Ford Mustang & 1979-1986 Mercury Capri
• Non-Adjustable Ball Stud

Pivot Ball Stud

Following on the heels of expanded clutch kit offerings, HAYS continues to expand its offerings of driveline products with the release of clutch forks, pivot ball studs, and release spring for popular General Motors, Ford, and Chrysler car and truck applications.

Race Transmission Fluid 12 x 1 Quart Bottles

Add shift quality, performance and durability to any automatic transmission by simply pouring in TCI Max Shift (ATF) Transmission Fluid.

Release Bearing

• "Excellence in Performance", backed by the best one-year warranty in the industry!

SPE-4688 Differential Bolt Set

• 5/16 inch-18 by 3/4 inch sized bolts
• Kit includes 14 grade 5 bolts
• Bolts feature a hex head

SPE-4696 Flex Plate Bolts GM

• For GM cars with automatic transmission
• Bolts have a black oxide finish
• Security lock washers included

STEEL CLUTCH FORK COVER

• Clutch Fork Cover
• Black Oxide Steel
• Included with LK8000K and LK9000K

Straight Transmission Adapter -6 Male to 1/4-18 NPSM Male - Short (Front)

• Includes crush washer
• 1/4"-18 threads
• Short Adapter (4L80E Front)

Straight Transmission Adapter -6 Male to 9/16-18 Threads - Long (Rear)

• Available for Any Plumbing Situation And Many Custom Applications.

Street Performance Transmission Fluid 12 x 1 Quart Bottles

Add shift quality, performance and durability to any automatic transmission by simply pouring in TCI Max Shift (ATF) Transmission Fluid.

Trailer Bearing Replacement Kit; 5;200-lb. Axles

• [1] Inner Bearing Cone
• [1] Outer Bearing Cone
• [1] Inner Bearing Race

Transmission Shifter Gasket

• Requires no silicone to provide a simple and clean installation
• Excellent torque retention to prevent possible leaks caused from loosened bolts
• Aluminum carrier provides un-matched gasket strength, fit, and, durability

Triple Disc XT/SI Race Kit

• "Excellence in Performance", backed by the best one-year warranty in the industry!

Unitized Oil Seal; 5;200-8;000-lb. Axles; 2.25in. Spindle Shaft Diameter; 20 Pac

• Compatible With 5200 To 8000 lbs. Axles
• Easy DIY Installation
• 1-Year Limited Warranty

Universal Transmission Controller

• Includes transmission controller and clearly labeled auxiliary harnesses for simple installation
• TC Tuner features Setup Wizard with base calibrations and capability to fully customize tune
• Compatible w/ most iOS & Android mobile devices

Universal Transmission Controller

• Includes transmission controller and clearly labeled auxiliary harnesses for simple installation
• TC Tuner features Setup Wizard with base calibrations and capability to fully customize tune
• Compatible w/ most iOS & Android mobile devices

XT/Race Rigid 4 Pad Kit

• "Excellence in Performance", backed by the best one-year warranty in the industry!

Press-In Dust Cap; 1.99in. Diam.; 2;200-4;400-lb. Axles; Super Lube; 10 Pack

• Axle Dust Cap

1.76 Planetary Carrier

This cleverly engineered bolt-together design is available in several gear ratios and shafts, making it the most versatile planetary unit for every racing configuration.