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Automatic Transmission Cases

The gearset of your automatic transmission is surrounded by a protective case made of iron or aluminum. Corrosion or damage may require a replacement for your stock...

The gearset of your automatic transmission is surrounded by a protective case made of iron or aluminum. Corrosion or damage may require a replacement for your stock case, and if you’re making upgrades for competition, you may need a beefed-up case for safety.

Top Brands

Stabilizing your high-performance engine is an important job, so you should go with a name brand you trust, instead of some third-party reseller. Summit Racing Equipment sells rocker arm stud girdles from manufacturers like COMP Cams, Harland Sharp, Trick Flow Specialties, Lunati, Howards Cams, and more.

The gearset of your automatic transmission is surrounded by a protective case made of iron or aluminum. Corrosion or damage may require a replacement for your stock case, and if you’re making upgrades for competition, you may need a beefed-up case for safety.

Top Brands

Stabilizing your high-performance engine is an important job, so you should go with a name brand you trust, instead of some third-party reseller. Summit Racing Equipment sells rocker arm stud girdles from manufacturers like COMP Cams, Harland Sharp, Trick Flow Specialties, Lunati, Howards Cams, and more.

Showing In Stock Items. Show All 14 Items.

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Results 1 - 8 of 8

TCI Auto Automatic Transmission Cases 720007

Made in the USA

TCI Auto Automatic Transmission Cases 720007

TCI Auto Automatic Transmission Cases 720007

P/G DEDEN CASE W/LINER&BEARING

Part Number: TCI-720007

Not Yet Reviewed

Estimated Ship Date: Feb 10, 2026 if ordered today

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Estimated Ship Date: Feb 10, 2026 if ordered today

BUILD IT WITH SUMMIT!

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Summit Racing™ TH400 Transmission Cases SUM-700405

Summit Racing™ TH400 Transmission Cases SUM-700405

Transmission Case, TH400, Aluminum, SFI Approved, GM, Each

Part Number: SUM-700405

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/5/2026

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Estimated Ship Date: Monday 1/5/2026

Reid Racing Super Hydra 400 Transmission Cases SH400DRAG

Reid Racing Super Hydra 400 Transmission Cases SH400DRAG

Reid Racing Super Hydra 400 Transmission Cases SH400DRAG

Automatic Transmission Case, Super Hydra 400, A Option, 0.435 in. Thick PP, Call for Thinner Options, SFI 4.1, Aluminum, Natural, GM TH400, Each

Part Number: REI-SH400DRAG

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/5/2026

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Estimated Ship Date: Monday 1/5/2026

Reid Racing Powerglide Transmission Cases PG2000

Reid Racing Powerglide Transmission Cases PG2000

Reid Racing Powerglide Transmission Cases PG2000

Powerglide Case, Superglide, 2-Piece, Permanent Mold Aluminum Casting, SFI 4.1 Certfied, Each

Part Number: REI-PG2000

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/5/2026

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Estimated Ship Date: Monday 1/5/2026

Reid Racing Powerglide Transmission Cases PG1500R

Reid Racing Powerglide Transmission Cases PG1500R

Reid Racing Powerglide Transmission Cases PG1500R

Automatic Transmission Case, Aluminum, Natural, GM, Powerglide, Each

Part Number: REI-PG1500R

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 1/5/2026

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Estimated Ship Date: Monday 1/5/2026

Reid Racing Powerglide Transmission Cases PG1500

Reid Racing Powerglide Transmission Cases PG1500

Reid Racing Powerglide Transmission Cases PG1500

Automatic Transmission Case, Aluminum, Natural, GM, Powerglide, Each

Part Number: REI-PG1500

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/5/2026

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Estimated Ship Date: Monday 1/5/2026

Reid Racing Super Hydra 400 Transmission Cases SH400OFF

Reid Racing Super Hydra 400 Transmission Cases SH400OFF

Reid Racing Super Hydra 400 Transmission Cases SH400OFF

OFFROAD TRANSMISSION CASE

Part Number: REI-SH400OFF

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/5/2026

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Estimated Ship Date: Monday 1/5/2026

TCI Reid Racing Powerglide SuperCases 720002

Made in the USA

TCI Reid Racing Powerglide SuperCases 720002

TCI Reid Racing Powerglide SuperCases 720002

Transmission Case, SuperCase, Powerglide, Aluminum, Natural, SFI 4.1/30.1 Rating, Each

Part Number: TCI-720002

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

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