Summit Racing SpeedCard - learn how to get 10% back up to $100

Make/Model Search
Make/Engine Search

Brands
Savings Central
Contact Us
Help Center
1-800-230-3030

Call Us
My Garage
Wish List
Order Status & Returns

Welcome
My Account

Order Status

Wish List
Savings Central
Shop by Brand
Shop Your Passion
- Shop Your Passion
- Truck / SUV
  
  Jeep®
  
  Restoration
  
  Stock Replacement
  
  Late Model Muscle
  
  Tools
  
  Gifts, Clothing, & More
  
  Circle Track
  
  Street Rod
  
  Powersports
  
  Paint & Body
  
  Marine
  
  Jr Dragster
Gift Cards
My Garage
See Our Catalogs
News & Events
Career Opportunities
Contact Us
Help Center
1-800-230-3030 1-800-230-3030
New Products
Shop by Make/Model
Sign In

Search Make/Model

Search Make/Engine

Sign In

Welcome
Account Dashboard
Profile
Order Status & Returns
Buy It Again
Wish List
Rewards Program
Gift Cards & Summit Bucks
Address Book
My Garage Settings
Email Preferences
Text Notifications
My Reviews
My Questions
Catalogs
Tax Exemption
Sign In

Summit Racing SpeedCard - learn how to get 10% back up to $100

Save With Limited-Time Deals on Exterior Parts & Accessories Today!

Filters

In Stock
- In Stock Items. Ships Today. (7) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- In Stock Items, Including at a Supplier. Ships In a Few Days. (7) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- All Items, Including Not In Stock (16) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Transmission Manufacturer Code
- THM400 (5) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 4L80-E (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 4L85-E (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Powerglide (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- THM350 (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Transmission Drum Material
- Aluminum (5) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Steel (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Sprag Assembly Included
- Yes (5)
- No (2)
Quantity
- Sold individually. (5)
- Sold as a kit. (2)
Price Range
In Stock

Selected Filters

Home
ATI Automatic Transmission Drums
Automatic Transmission Drums
Product Results

Availability

- In Stock Items. Ships Today. (7) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- In Stock Items, Including at a Supplier. Ships In a Few Days. (7) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- All Items, Including Not In Stock (16) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Filters
Transmission Manufacturer Code
- THM400 (5) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 4L80-E (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 4L85-E (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Powerglide (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- THM350 (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Transmission Drum Material
- Aluminum (5) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Steel (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Sprag Assembly Included
- Yes (5)
- No (2)
Quantity
- Sold individually. (5)
- Sold as a kit. (2)
Price Range

ATI Performance Products

ATI Automatic Transmission Drums

4.64 out of 5 stars 11 Customer Reviews

ATI Performance automatic transmission drums eliminate the need for steel bushings and sleeves that can expand under heat and come loose, ultimately causing transmission failure. They come equipped with Torrington bearings and are designed to triple clutch life and lower ETs.

Showing In Stock Items. Show All 16 Items.

Results 1 - 7 of 7

ATI Automatic Transmission Drums ATI407059

ATI Automatic Transmission Drums ATI407059

ATI Automatic Transmission Drums ATI407059

Automatic Transmission Drums, Severe Duty, with Sprag Assembly, Billet Aluminum, GM, 4L80E, 4L85E and TH400, Kit

Part Number: ATI-407059

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

ATI Automatic Transmission Drums ATI407056

ATI Automatic Transmission Drums ATI407056

ATI Automatic Transmission Drums ATI407056

Automatic Transmission Drum, Aluminum, GM, TH400, Each

Part Number: ATI-407056

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

ATI Automatic Transmission Drums ATI355259

ATI Automatic Transmission Drums ATI355259

ATI Automatic Transmission Drums ATI355259

Clutch Drum, Forward, Steel, TH350, 300M Turbo Spline Shaft, Each

Part Number: ATI-355259

4.43 out of 5 stars ( 7 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

ATI Automatic Transmission Drums ATI407058

ATI Automatic Transmission Drums ATI407058

ATI Automatic Transmission Drums ATI407058

Automatic Transmission Drum, Aluminum, Billet Steel Outer, GM, TH400, Each

Part Number: ATI-407058

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

ATI Automatic Transmission Drums ATI407056B

ATI Automatic Transmission Drums ATI407056B

ATI Automatic Transmission Drums ATI407056B

400, DRUM ASSY KIT, AL DIRECT, W/BILLET DIRECT & INT PISTONS, 36E, CENTER SUPPORT, CLUTCHES / STEELS

Part Number: ATI-ATI407056B

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

ATI Automatic Transmission Drums ATI405722

ATI Automatic Transmission Drums ATI405722

ATI Automatic Transmission Drums ATI405722

Transmission Drum, Aluminum, 6-Clutch, Chevy, TH400, Kit

Part Number: ATI-405722

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

ATI Automatic Transmission Drums ATI207015

ATI Automatic Transmission Drums ATI207015

ATI Automatic Transmission Drums ATI207015

Clutch Drum, Automatic Transmission, Steel, OEM Style, Includes Check Ball and Bushing, Each

Part Number: ATI-207015

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

1

Page 1 of 1

Modal Header

Contact us with questions.

Call To Order

This is a custom order part. You can order this part by Contacting Us.

Summit Racing Speedcard. Synchrony Car Care.

Summit Racing Equipment SpeedCard

Jumpstart Your Next Project!

View Details|See if you Prequalify

Stay Updated with Emails from Summit Racing

Never miss a sale on new parts, tools, and more!

= Required

First Name

Last Name

Email Address Email required

See Our Catalogs

News & Events

News & Events Home
OnAllCylinders (blog)
Calendar of Events
New Product Releases
Summit Racing News
News You Can Use
Featured Vehicles
Media Center
Sanctioning Bodies

Help

Help Center
Return Policy
Beat-A-Price Guarantee
Payment Options
Contact Us

Social

Facebook
X/Twitter
Instagram
Pinterest
YouTube
Podcast

About Summit

Corporate History
Retail Locations

My Account

Profile
Email Preferences
Order Status & Returns
Wish List
Address Book
My Reviews
My Questions
My Garage
Sign In

Career Opportunities

More

Summit Racing Credit Card
Gift Cards
Calculators & Tools
Promo Exclusions
Become an Affiliate
Summit Racing Rewards Program
Summit Racing Equipment Protection Plan

Terms of Use | Privacy and Security | Site Accessibility
Copyright 2026 by AUTOSALES, INCORPORATED
dba Summit Racing Equipment | Trademarks

Let's Build it Together^™

Modal Header