![Premium Series Flexplate Small Block Chevy [External Balance]](https://www.jegs.com/images/mini_750/800/890/890-399601.jpg)
Premium Series Flexplate Small Block Chevy [External Balance]
- Premium Series Flexplate
- Small Block Chevy
- External Balance
- 10.750 in. Bolt Pattern
- 153 Tooth
- Sold Individually
This premium-quality 399601 stock replacement flexplate by TCI ensures vibration-free operation and features a durable E-Coat finish, making it an excellent upgrade for your Small Block Chevy at a budget-friendly price.
Premium Flexplates as Stock Replacement
TCI's line of stock replacement flexplates is a premium upgrade from the original equipment. Precision manufactured and spin balanced to factory specifications for internally or externally balanced engines, TCI premium series flexplates are vibration-free and e-coated for corrosion protection.
Items You Need
![Quick Shift Automatic Transmission Fluid [1-quart]](https://www.jegs.com/images/mini_200/500/555/555-28070.jpg)
JEGS
Quick Shift Automatic Transmission Fluid [1-quart]
Part Number : 555-28070
![Flexible Braided Transmission Dipstick for TH350/TH400 [Black]](https://www.jegs.com/images/mini_200/500/555/555-61690.jpg)
JEGS
Flexible Braided Transmission Dipstick for TH350/TH400 [Black]
Part Number : 555-61690
![Flexible Braided Transmission Dipstick for TH350/TH400 [Polished]](https://www.jegs.com/images/mini_200/500/555/555-61590.jpg)
JEGS
Flexible Braided Transmission Dipstick for TH350/TH400 [Polished]
Part Number : 555-61590

JEGS
Aluminum Transmission Inspection Plate for TH-350 and TH-400
Part Number : 555-60184
![Flexplate Inspection Cover for Chevy TH350 & TH400 Automatic Transmissions [Black]](https://www.jegs.com/images/mini_200/500/555/555-60197.jpg)
JEGS
Flexplate Inspection Cover for Chevy TH350 & TH400 Automatic Transmissions [Black]
Part Number : 555-60197

JEGS
Transmission Intermediate Sprag for 1964-1972 GM TH-400
Part Number : 555-62052

JEGS
Governor Recalibration Kit for GM TH-250, TH-350, TH-400, 700R4
Part Number : 555-62070

JEGS
Locking Transmission Dipstick & tube for GM TH400 Automatic Transmission
Part Number : 555-61582
![Transmission Vacuum Modulator for GM 1963-1990 TH350/TH400 [Adjustable]](https://www.jegs.com/images/mini_200/500/555/555-62068.jpg)
JEGS
Transmission Vacuum Modulator for GM 1963-1990 TH350/TH400 [Adjustable]
Part Number : 555-62068
![Transmission Slip Yoke Forged Steel [GM 32-Spline]](https://www.jegs.com/images/mini_200/500/555/555-60671.jpg)
JEGS
Transmission Slip Yoke Forged Steel [GM 32-Spline]
Part Number : 555-60671

JEGS
Automatic Transmission Bushings Kit for 1966-1991 GM TH400
Part Number : 555-62062
![High-Volume Front Pump for GM TH400 [6 and 8 Bolt Cases]](https://www.jegs.com/images/mini_200/500/555/555-60314.jpg)
JEGS
High-Volume Front Pump for GM TH400 [6 and 8 Bolt Cases]
Part Number : 555-60314

JEGS
SFI 4.1 Certified GM TH400 Transmission Case
Part Number : 555-60333
![GM TH-400 Automatic Transmission Tailhousing with Bushing & Seal [Short Shaft Design]](https://www.jegs.com/images/mini_200/500/555/555-60312.jpg)
JEGS
GM TH-400 Automatic Transmission Tailhousing with Bushing & Seal [Short Shaft Design]
Part Number : 555-60312
![Trans-Brake Valve Body Kit for GM TH400 [Billet Aluminum]](https://www.jegs.com/images/mini_200/500/555/555-603206.jpg)
JEGS
Trans-Brake Valve Body Kit for GM TH400 [Billet Aluminum]
Part Number : 555-603206

JEGS
High Performance Transmission Reverse Rear Band for 1964-Up GM TH-400 and 4L80E
Part Number : 555-62056

JEGS
Transmission Filter and Gasket Kit for TH400 Chevy, BOP
Part Number : 555-60901
![Cast Aluminum Transmission Pan for TH400 Automatic Transmission [3 1/2 in. Deep]](https://www.jegs.com/images/mini_200/500/555/555-60179.jpg)
JEGS
Cast Aluminum Transmission Pan for TH400 Automatic Transmission [3 1/2 in. Deep]
Part Number : 555-60179

JEGS
Transmission Filter and Gasket Kit for TH400 Chevy, BOP
Part Number : 555-60901

JEGS
TH400 Transmission Pan Gasket
Part Number : 555-60982
![Cast Aluminum Transmission Pan for TH400 Automatic Transmission [3 1/2 in. Deep]](https://www.jegs.com/images/mini_200/500/555/555-60179.jpg)
JEGS
Cast Aluminum Transmission Pan for TH400 Automatic Transmission [3 1/2 in. Deep]
Part Number : 555-60179

JEGS
Flywheel and Flexplate Turning Tool
Part Number : 555-60129
![Quick Shift Automatic Transmission Fluid [1-quart]](https://www.jegs.com/images/mini_200/500/555/555-28070.jpg)
JEGS
Quick Shift Automatic Transmission Fluid [1-quart]
Part Number : 555-28070
![Flexible Braided Transmission Dipstick for TH350/TH400 [Black]](https://www.jegs.com/images/mini_200/500/555/555-61690.jpg)
JEGS
Flexible Braided Transmission Dipstick for TH350/TH400 [Black]
Part Number : 555-61690
![Flexible Braided Transmission Dipstick for TH350/TH400 [Polished]](https://www.jegs.com/images/mini_200/500/555/555-61590.jpg)
JEGS
Flexible Braided Transmission Dipstick for TH350/TH400 [Polished]
Part Number : 555-61590

JEGS
Aluminum Transmission Inspection Plate for TH-350 and TH-400
Part Number : 555-60184
![Flexplate Inspection Cover for Chevy TH350 & TH400 Automatic Transmissions [Black]](https://www.jegs.com/images/mini_200/500/555/555-60197.jpg)
JEGS
Flexplate Inspection Cover for Chevy TH350 & TH400 Automatic Transmissions [Black]
Part Number : 555-60197

JEGS
Transmission Intermediate Sprag for 1964-1972 GM TH-400
Part Number : 555-62052

JEGS
Governor Recalibration Kit for GM TH-250, TH-350, TH-400, 700R4
Part Number : 555-62070

JEGS
Locking Transmission Dipstick & tube for GM TH400 Automatic Transmission
Part Number : 555-61582
![Transmission Vacuum Modulator for GM 1963-1990 TH350/TH400 [Adjustable]](https://www.jegs.com/images/mini_200/500/555/555-62068.jpg)
JEGS
Transmission Vacuum Modulator for GM 1963-1990 TH350/TH400 [Adjustable]
Part Number : 555-62068
![Transmission Slip Yoke Forged Steel [GM 32-Spline]](https://www.jegs.com/images/mini_200/500/555/555-60671.jpg)
JEGS
Transmission Slip Yoke Forged Steel [GM 32-Spline]
Part Number : 555-60671

JEGS
Aluminum Transmission Pan for GM TH400
Part Number : 555-61181

JEGS
Automatic Transmission Bushings Kit for 1966-1991 GM TH400
Part Number : 555-62062

JEGS
Front Pump Seal Kit for 1965-1998 TH400
Part Number : 555-60313
![High-Volume Front Pump for GM TH400 [6 and 8 Bolt Cases]](https://www.jegs.com/images/mini_200/500/555/555-60314.jpg)
JEGS
High-Volume Front Pump for GM TH400 [6 and 8 Bolt Cases]
Part Number : 555-60314

JEGS
SFI 4.1 Certified GM TH400 Transmission Case
Part Number : 555-60333

JEGS
Shift Improver Kit for 1965-later GM TH400
Part Number : 555-62148
![GM TH-400 Automatic Transmission Tailhousing with Bushing & Seal [Short Shaft Design]](https://www.jegs.com/images/mini_200/500/555/555-60312.jpg)
JEGS
GM TH-400 Automatic Transmission Tailhousing with Bushing & Seal [Short Shaft Design]
Part Number : 555-60312
![Trans-Brake Valve Body Kit for GM TH400 [Billet Aluminum]](https://www.jegs.com/images/mini_200/500/555/555-603206.jpg)
JEGS
Trans-Brake Valve Body Kit for GM TH400 [Billet Aluminum]
Part Number : 555-603206

JEGS
High Performance Transmission Reverse Rear Band for 1964-Up GM TH-400 and 4L80E
Part Number : 555-62056

JEGS
Transmission Filter and Gasket Kit for TH400 Chevy, BOP
Part Number : 555-60901

JEGS
TH400 Transmission Pan Gasket
Part Number : 555-60982
![Cast Aluminum Transmission Pan for TH400 Automatic Transmission [3 1/2 in. Deep]](https://www.jegs.com/images/mini_200/500/555/555-60179.jpg)
JEGS
Cast Aluminum Transmission Pan for TH400 Automatic Transmission [3 1/2 in. Deep]
Part Number : 555-60179

JEGS
Flywheel and Flexplate Turning Tool
Part Number : 555-60129
![Quick Shift Automatic Transmission Fluid [1-quart]](https://www.jegs.com/images/mini_200/500/555/555-28070.jpg)
JEGS
Quick Shift Automatic Transmission Fluid [1-quart]
Part Number : 555-28070
![Flexible Braided Transmission Dipstick for TH350/TH400 [Black]](https://www.jegs.com/images/mini_200/500/555/555-61690.jpg)
JEGS
Flexible Braided Transmission Dipstick for TH350/TH400 [Black]
Part Number : 555-61690
![Flexible Braided Transmission Dipstick for TH350/TH400 [Polished]](https://www.jegs.com/images/mini_200/500/555/555-61590.jpg)
JEGS
Flexible Braided Transmission Dipstick for TH350/TH400 [Polished]
Part Number : 555-61590

JEGS
Aluminum Transmission Inspection Plate for TH-350 and TH-400
Part Number : 555-60184
⚠️ Warning
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.