Description
Product Overview
The PartsFlow Rear Main Seal Kit is designed to match the original equipment specifications for GMC Savana and Chevrolet Trailblazer models. Constructed from high‑grade rubber and reinforced steel, the kit includes a precision‑cut seal, retaining ring, and necessary hardware to restore the integrity of your transmission system. With a weight of 2.8 pounds and compact packaging (11 x 11 x 2 inches), it ships ready for immediate installation.
![[Product front view showing all components]](https://www.nebulago.store/wp-content/uploads/2026/06/f69cef2d57374d26901b86aaa652ecee.jpg)
Usage
This seal kit is ideal for both professional repair shops and DIY owners tackling transmission maintenance. It fits seamlessly into standard service intervals, addressing common leak issues and preventing costly downstream damage. Whether you are restoring a fleet vehicle or performing a single‑car repair, the kit delivers reliable performance in everyday driving conditions.
Why Choose Us
PartsFlow commits to rigorous quality control, ensuring each seal meets OEM tolerances. Our products undergo strict material testing for heat resistance and wear, guaranteeing longevity even under heavy loads. Additionally, we provide an unlimited 12‑month warranty and responsive customer support to assist with any fitment questions.
Key Features
- Exact OEM dimensions for a perfect, leak‑free fit
- High‑quality rubber and steel construction for superior durability
- Easy installation with included retaining ring and hardware
- Designed to withstand high temperatures and pressure in transmission systems
- Unlimited 12‑month warranty and dedicated after‑sales support
FAQ
Will this kit fit other GMC or Chevrolet models?
The kit is specifically engineered for GMC Savana, Yukon, Sierra and Chevrolet Trailblazer, Tahoe, Suburban. Compatibility with other models should be verified against part numbers 635‑518, 12633579, 12639250.
Do I need special tools to install the seal?
Standard seal installation tools are sufficient. The kit includes a retaining ring and basic hardware, but a seal puller and torque wrench are recommended for best results.
What is covered under the 12‑month warranty?
The warranty covers any manufacturing defects or material failures. If the seal fails within 12 months of purchase, PartsFlow will provide a replacement at no additional cost.
Can I install this kit myself?
Yes, the kit is designed for straightforward installation. Follow the included instructions, and ensure the transmission is properly drained and cleaned before fitting the new seal.
How does this seal improve transmission performance?
A proper rear main seal prevents fluid leaks, maintains oil pressure, and reduces the risk of contamination, leading to smoother gear shifts and extended transmission life.
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