Click to enlarge

Description:

New A-5 .78 Synchronized 5th Gear Kit.  Works out to be a .78 Final Ratio when used with Astro's "Level 3" Rebuilt T-5 Transmission and New Tremec T-5 "Z-Spec" 5 Speed Transmissions.

The A-5 5th Gear Kit has a Reduced Helix Angle that reduces the Side Thrust on the Casing by 50% over that of the Stock Gear Kit.  

Includes:

-5th Drive & Driven Gears
38T = Drive Gear / 23T = Driven Gear

-Split Needle Bearing and Thrust Washer

Notes:

The A-5 .78 Overdrive Gear Kit may require the 5th Fork to be "clearanced".  This is not mandatory in all models, but needs to be checked before completely assembling gear box.