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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.
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
Estimated Ship Date: Today
Estimated Ship Date: Today
BUILD IT WITH SUMMIT!
Summit Racing™ TH400 Transmission Cases SUM-700405
Transmission Case, TH400, Aluminum, SFI Approved, GM, Each
Part Number: SUM-700405
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission Case, Powerglide, Aluminum, Natural, SFI 4.1, GM, Each
Part Number: TOS-2505
Estimated Ship Date: Today
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission Case, Aluminum, Natural, GM, Powerglide, Each
Part Number: REI-PG1500R
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission Case, Super 80, GM 4L80E, SFI 4.1, Each
Part Number: REI-S80
Estimated Ship Date: Today
Estimated Ship Date: Today
Powerglide Case, Superglide, 2-Piece, Permanent Mold Aluminum Casting, SFI 4.1 Certfied, Each
Part Number: REI-PG2000
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission Case, Aluminum, Natural, GM, Powerglide, Each
Part Number: REI-PG1500
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission Case, Aluminum, Natural, TH400, GM, Each
Part Number: ATI-400011
Estimated Ship Date: Today
Estimated Ship Date: Today
Transmission Case, Ultra-Case Powerglide, Aluminum, Natural, SFI 4.1 Rating, Each
Part Number: JPT-92310
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission Case, Aluminum, Natural, TH400, GM, Each
Part Number: ATI-400013
Not Yet Reviewed
350 - SUPER CASE - W/ CHEVY BELL - BAND VERSION - T350
Part Number: ATI-350111
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
350 - SUPER CASE - W/ CHEVY BELL - T350
Part Number: ATI-350011
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
Automatic Transmission Case, TH400, Aluminum, Natural, SFI 4.1, GM, Each
Part Number: TOS-4072
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Automatic Transmission Cases, SuperCase, SFI Rated, with Chevy Bellhousing, No Band/Governer, Aluminum, Natural, TH350, GM, Each
Part Number: ATI-350011NG
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
350 - SUPER CASE - NO BELL - T350
Part Number: ATI-350013
Not Yet Reviewed
Estimated Ship Date: Apr 1, 2026 if ordered today
Estimated Ship Date: Apr 1, 2026 if ordered today
PG, SUPER CASE W/ BRG FOR PG OUTPUT W/ SMALL PARTS, NO BELL, GEN2
Part Number: ATI-ATI200013B-N
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
PG, SUPER CASE W/ SMALL PARTS, NO BELL, GEN2
Part Number: ATI-ATI200013-N
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
HOUSING ASM-FRT WHL DRV INTER SHF
Part Number: ADO-85596736
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
Automatic Transmission Case, Replacement, Aluminum, Natural, 6L80, Cadillac, Chevrolet, GMC, Pontiac, Each
Part Number: ADO-24290673
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Automatic Transmission Case, Replacement, Aluminum, Natural, Cadillac, Chevrolet, GMC, Each
Part Number: ADO-24292379
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
CASE ASM-A/TRNS
Part Number: ADO-24273111
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Automatic Transmission Cases, ACDelco Automatic Transmission Cases, Aluminum, Natural Finish, Chevy, Each
Part Number: ADO-24275994
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
POWERGLIDE TWO-PIECE CASE
Part Number: EW1-37276
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
400 - SUPER CASE - MACHINED CASTING - LOCK-UP - W/ SENSOR PORTS
Part Number: ATI-400013MD-LU
Not Yet Reviewed
Estimated Ship Date: Apr 1, 2026 if ordered today
Estimated Ship Date: Apr 1, 2026 if ordered today
