Reid Racing Super Hydra 400 Transmission Cases SH400OFF

5 out of 5 stars ( 3 )

Part Number: REI-SH400OFF

$2,283.99

OFFROAD TRANSMISSION CASE
See More Specifications | Check the Fit

Reid Racing Super Hydra 400 Transmission Cases SH400OFF

Reid Racing Super Hydra 400 Transmission Cases SH400OFF

REI-SH400OFF

5 out of 5 stars ( 3 )

Part Number: REI-SH400OFF

Estimated Ship Date from Texas: Monday 10/19/2026

$2,283.99

Estimated Ship Date from Texas: Monday 10/19/2026 Would you rather pick it up?

Overview

Brand:
Manufacturer's Part Number:
SH400OFF
Part Type:
Product Line:
Summit Racing Part Number:
REI-SH400OFF
Remanufactured:
No
Transmission Case Material:
Aluminum
Transmission Case Finish:
Natural
Adjustable Trans-Brake Release:
No
Flexplate Shield Built In:
Yes
Transmission Shield Built In:
No
Transmission Shield Rating:
SFI 4.1
Quantity:
Sold individually.
Notes:
Off-road version of the TH400 transmission case. The bellhousing is not included and must be purchased separately. Includes billet steel pressure plate and oversize retaining snap ring.

Reid Racing Super Hydra 400 Transmission Cases

Redesigned and strengthened, Reid Racing Super Hydra 400 transmission cases address weaknesses and add features that improve every aspect of the Turbo 400. They build their Super Hydra 400 cases with full 360 degree internal case "lugs" that retain the center support and pressure plate. Not only are they lightweight and offer minimal drag, but their abuse tolerance has been kicked up several notches to handle high-horsepower levels without ending up with a ruined transmission!

A direct replacement for the GM case, Reid cases use an incredibly expensive permanent mold casting technique to increase the case wall thickness, making it sufficient to pass SFI 4.1 certifications without the need for any external shields or internal liners. Super Hydra 400s are massively tough, ductile, and leak-free—with the strength to handle rock crawling, as well as desert or short-course truck racing. Their modular, 2-piece design allows them to be used with all popular engines by simply changing bolt-on Superglide bellhousings. Reid Racing Super Hydra 400 transmission cases are offered in drag/street and off-road versions, each with features geared specifically for those applications.

Features:

* Speedometer and governor provisions
* Improved billet steel pressure plate
* Oversized snap ring
* Longer band anchor pins captured by oversize bosses
* Additional dipstick hole on driver side
* Multiple external pressure taps allow for monitoring of circuit pressures
* Accept all style oil pumps, including 8-bolt and vari-pitch designs
* Threaded inserted bellhousing and oil pump threads
* Pre-machined to fit larger custom planetary gear carriers

Off-road also includes:

* Pre-machined side oil feed feature for 4L80-E center support
* Front band anchor tapped for custom ARP anchor bolt (supplied)
* Pre-machined bosses for input and output speed sensors
* Un-machined speedometer boss for maximized 4x4 transfer case load support
* Oil line ports machined for -AN fittings
* Pre-machined with additional stud/nut clearance for Advance Adapters transfer case adapters
* Available with a 4L80-E size pressure plate

Applications

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