Description
Product Overview
The Zieichy Billet Steel Support Plate Shim Kit is engineered for the demanding needs of World Class T5 automatic transmissions found in Ford, GM and Chevrolet vehicles from 1985 onward. Constructed from high‑grade billet steel, the support plate and shims resist deformation under high pressure, temperature fluctuations and corrosive environments, extending the service life of rear bearing retainers. The kit includes four precision‑threaded mounting bolts, a robust support plate, and a comprehensive assortment of shims to fine‑tune bearing clearance. Dimensions of the package are 6.29 x 4.72 x 1.57 inches, weighing 15.04 ounces, and it carries the manufacturer part numbers T5‑144, 135202715HD, 1352‑027‑015, 1352027015, and E5ZZ‑7195‑A.
Usage
Designed for professional mechanics and experienced DIY enthusiasts, this kit fits directly into the rear bearing assembly of compatible T5 transmissions. Installation is performed during routine transmission rebuilds or when bearing wear is detected. The shims allow precise adjustment of bearing preload, reducing noise and vibration while improving shift quality. Ideal for high‑performance street builds, heavy‑duty towing applications, and off‑road vehicles that subject the transmission to elevated loads. 
Why Choose Us
Zieichy combines decades of automotive engineering expertise with rigorous quality control. Each steel component undergoes heat treatment and dimensional verification to meet OEM tolerances. The kit is backed by a 1‑year warranty, reflecting confidence in material durability and fitment accuracy. Unlike generic aftermarket shims, our billet steel construction offers superior fatigue resistance, ensuring consistent performance even under extreme operating conditions.
Key Features
- Billet steel construction for maximum strength and heat resistance
- Complete shim assortment for precise bearing preload adjustment
- Includes mounting bolts and support plate for a full installation package
- Fits 1985‑up Ford, GM and Chevrolet World Class T5 units
- 1‑year warranty and dedicated customer support
FAQ
Will this kit fit a non‑World Class T5 transmission?
No, the kit is specifically designed for World Class T5 units and is not compatible with NWC T5 transmissions that use brass synchronizers.
Do I need additional tools to install the shims?
Standard hand tools such as a torque wrench and socket set are sufficient. The included bolts are pre‑threaded to match OEM specifications.
Can I use this kit for a transmission that has been rebuilt before?
Yes, the shims allow you to reset bearing clearance to OEM values, making it ideal for both first‑time builds and subsequent rebuilds.
What is the warranty coverage?
The kit comes with a 365‑day warranty covering material defects and workmanship. Contact Zieichy support for replacement or refund procedures.
Is corrosion resistance included in the steel material?
Yes, the billet steel is treated with a corrosion‑resistant coating to protect against moisture and road salts, extending the lifespan of the components.
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