Best TH-350 Transmission Kits : Boost Your Ride

Looking for the best TH-350 transmission kits? We’ve compiled a list of top picks to help you maintain your vehicle’s performance and reliability with ease.

Maintaining your TH-350 transmission is key to keeping your vehicle running smoothly. Whether you’re tackling a full rebuild or just need a quick fix, the right kit can make all the difference. We’ve gathered the best TH-350 transmission kits to help you find the perfect match for your needs.

From all-in-one rebuild kits to specialized seal and filter sets, these products are designed to enhance performance and extend the life of your transmission. Each kit is packed with high-quality components to ensure durability and reliability.

Discover the top picks, save time, and drive with confidence. Let’s dive in!

List of Top 10 TH-350 Transmission Kits

Title	Best For	Price
JEGS Complete Transmission Rebuild Kit \| Fits 1969-1986 GM or Chevy TH-350 (non-lockup) With 30-Spline Input Shaft \| Made in USA	This kit is perfect for anyone who wants to fix or rebuild a 1969-1986 GM or Chevy TH-350 transmission. It is great for car owners or mechanics who need a complete set of parts to make the job easy and fast.	View on Amazon (paid link)
BIGLKNM TH350 Transmission Seal Filter Kit; Automatic Transmission External Gasket Seal Reseal Kit for Turbo 350 TH350 TH350C Rebuild Kit	This product is perfect for DIY car repair folks or mechanics fixing Turbo 350 transmissions. It seals leaks fast with durable fluoro rubber parts and includes all needed seals and gaskets.	View on Amazon (paid link)
ATP B-37 Automatic Transmission Filter Kit	This ATP B-37 Automatic Transmission Filter Kit is perfect for GM TH-350 transmission owners who want to keep their transmissions running smoothly and prevent leaks. It’s designed for easy installation and long-term reliability, ensuring your transmission stays in great shape.	View on Amazon (paid link)
GOLKNHA Turbo 350 TH350 TH350C Transmission External Gasket Seal Reseal Kit, Filler Tube O-Ring & More Fits THM-250, 250C, 350, 350C & 375B Transmissions, Maximum Coverage with Metal Clad Seals	This GOLKNHA Turbo 350 TH350 TH350C Transmission External Gasket Seal Reseal Kit is perfect for DIY mechanics and auto enthusiasts looking to prevent leaks and extend the life of their transmission. It provides maximum coverage with all the essential seals and components for a complete reseal.	View on Amazon (paid link)
JEGS Transmission Rebuild Kit \| Fits 1969-1986 GM/Chevy TH350, TH350C, TH250, TH250C \| Made in USA	This JEGS Transmission Rebuild Kit is perfect for car enthusiasts and DIY mechanics who want to fix their classic GM or Chevy vehicles. It’s ideal for improving shift feel and response in 1969-1986 models.	View on Amazon (paid link)
JEGS TH-350 Transmission Pan Kit \| 2” Deep Pan \| Chrome Steel \| Includes Magnetic Drain Plug \| Kit includes Filter, Gasket, And 4 Quarts Of Trans Fluid	This JEGS TH-350 Transmission Pan Kit is perfect for GM/Chevy TH350 owners looking for an easy upgrade. It provides everything you need for a smooth, powerful transmission.	View on Amazon (paid link)
JEGS Transmission Filter And Gasket Kit \| Fits TH-350 (Including Metric) Chevrolet, Buick, Oldsmobile, And Pontiac Transmissions \| Includes Filter, Pan Gasket, And Filter Gasket	This JEGS Transmission Filter and Gasket Kit is perfect for DIY mechanics and car enthusiasts who want to maintain their Chevrolet, Buick, Oldsmobile, or Pontiac vehicles with TH-350 transmissions. It’s an essential purchase for anyone performing fluid changes or valve body maintenance to ensure their transmission runs smoothly and lasts longer.	View on Amazon (paid link)
250/350 Transmission Rebuild Kit, Master Less Steels 1969-1979	This kit is perfect for mechanics and car enthusiasts who want a reliable and easy rebuild for their 1969-1979 250/350 transmissions. It fits those who need top-quality parts that last long and work great. If you want a smooth clutch and strong seals, this kit has what you need.	View on Amazon (paid link)
th350 (68-up) transmission rebuilt kit banner overhault kit and clutches Automatic transmission	This product is perfect for mechanics and DIYers rebuilding a TH350 transmission. It includes OEM components and top brands for reliable, long-lasting repairs.	View on Amazon (paid link)
TH350 Turbo 350 Transmission Raybestos Stage 1 Master Level 2 Rebuild Kit	This TH350 Turbo 350 Transmission Rebuild Kit is perfect for car owners and mechanics who want strong and reliable performance. It works great for street cars, towing, and mild racing.	View on Amazon (paid link)

Detailed Reviews

Discover the top 10 TH-350 Transmission Kits selected for their outstanding performance and value. Our expert picks ensure you find the perfect fit for your needs. Get ready to upgrade your ride with confidence. Explore the ultimate guide to the best transmission kits available.

1. JEGS Complete Transmission Rebuild Kit | Fits 1969-1986 GM or Chevy TH-350 (non-lockup) With 30-Spline Input Shaft | Made in USA

This ALL-IN-ONE REBUILD KIT fits 1969-1986 GM or Chevy TH-350 transmissions. It works with non-lockup converters and 30-spline input shafts. Everything you need comes in one box.

The kit includes gaskets, seals, friction plates, bushings, and more. No extra parts needed for a full rebuild.

MADE IN USA for durability and reliability. Basic kits (gaskets/seals only) are also available.

Pros	Cons
All-in-one kit includes everything needed for rebuilds. Perfect fit for 1969-1986 GM/Chevy TH-350 (non-lockup). Contains all essential parts: gaskets, seals, friction plates, and more. Made in USA ensures high quality and durability. Basic kits available for simple gasket/seal replacements.	Limited fitment – Only for non-lockup TH-350 models. No gasket-only option – Full kit required for minor repairs. No instructions included – Requires technical expertise.

Perfect For:

This kit is perfect for anyone who wants to fix or rebuild a 1969-1986 GM or Chevy TH-350 transmission. It is great for car owners or mechanics who need a complete set of parts to make the job easy and fast.

Ready to Purchase?

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2. BIGLKNM TH350 Transmission Seal Filter Kit; Automatic Transmission External Gasket Seal Reseal Kit for Turbo 350 TH350 TH350C Rebuild Kit

The BIGLKNM TH350 Transmission Seal Filter Kit is perfect for those with a Turbo 350 transmission. It fits all THM-250, 250C, 350, 350C, and 375B models. This kit helps seal up any leaking transmission issues.

Made from high-quality materials, this kit includes essential parts like the oil pump seal and oil pan gasket. It is designed to provide a perfect fit and prevent leaks effectively.

Pros	Cons
Perfect fit for Turbo 350, TH350C, and other models Durable materials for long-lasting use and high resistance Designed to prevent leaks and maintain transmission function Easy installation with included oil pump seals and gaskets	Limited to TH350 models only, not universal Installation can be tricky without proper tools No detailed instruction manual included

Perfect For:

This product is perfect for DIY car repair folks or mechanics fixing Turbo 350 transmissions. It seals leaks fast with durable fluoro rubber parts and includes all needed seals and gaskets.

Ready to Purchase?

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3. ATP B-37 Automatic Transmission Filter Kit

Keep your GM TH-350 transmission running smoothly with the ATP B-37 Automatic Transmission Filter Kit. This kit provides premium filtration that matches original equipment, ensuring your transmission’s longevity.

The 3rd Hand Pan Gasket is a game-changer, featuring retention holes to make installation a breeze. Its exclusive material expands with heat, guaranteeing leak-free performance for the long haul.

Install with ease. Prevent future leaks. Drive with confidence.

Pros	Cons
Keeps your transmission running smoothly. Protects your transmission for longer life. Easy installation with smart gasket. Prevents leaks for reliable performance. Perfect fit for GM TH-350.	May require specific vehicle checks. Installation might need extra care.

Perfect For:

This ATP B-37 Automatic Transmission Filter Kit is perfect for GM TH-350 transmission owners who want to keep their transmissions running smoothly and prevent leaks. It’s designed for easy installation and long-term reliability, ensuring your transmission stays in great shape.

Ready to Purchase?

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4. GOLKNHA Turbo 350 TH350 TH350C Transmission External Gasket Seal Reseal Kit, Filler Tube O-Ring & More Fits THM-250, 250C, 350, 350C & 375B Transmissions, Maximum Coverage with Metal Clad Seals

GOLKNHA Turbo 350 TH350 TH350C Transmission External Gasket Seal Reseal Kit, Filler Tube O-Ring & More Fits THM-250, 250C, 350, 350C & 375B Transmissions, Maximum Coverage with Metal Clad Seals

Keep your transmission running smoothly with the GOLKNHA Turbo 350 TH350 TH350C Transmission External Gasket Seal Reseal Kit. This kit provides maximum coverage to ensure your transmission is fully sealed and protected.

With this comprehensive kit, you get all the essential seals and parts needed for a complete reseal. It includes high-quality metal-clad seals for critical areas, ensuring durability and preventing leaks.

This kit fits many transmissions. It offers 1-year warranty and 24/7 customer service. Get back on the road with confidence!

Pros	Cons
Fits all THM-250, 250C, 350, 350C & 375B transmissions. Comprehensive kit includes filler tube O-ring and multi-lip boot seal. Metal-clad seals ensure maximum durability and leak protection. 1-year warranty with 24/7 customer support for peace of mind.	Not universal: Specific to certain transmission models, limiting compatibility. Installation complexity: Requires technical skill, not beginner-friendly. No tools included: You’ll need your own tools for installation.

Perfect For:

This GOLKNHA Turbo 350 TH350 TH350C Transmission External Gasket Seal Reseal Kit is perfect for DIY mechanics and auto enthusiasts looking to prevent leaks and extend the life of their transmission. It provides maximum coverage with all the essential seals and components for a complete reseal.

Ready to Purchase?

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5. JEGS Transmission Rebuild Kit | Fits 1969-1986 GM/Chevy TH350, TH350C, TH250, TH250C | Made in USA

Upgrade your transmission with the JEGS Transmission Rebuild Kit. It fits 1969-1986 GM/Chevy TH350, TH350C, TH250, TH250C models.

This all-in-one kit makes repair easy. It includes everything you need for a smooth shift. The parts are made with high-quality materials.

You get gaskets, seals, and clutch plates. The kit has pistons, filters, and bushings too. It’s made in the USA for trusted quality.

Pros	Cons
Complete all-in-one kit removes guesswork from repairs. Fits multiple GM/Chevy models from 1969 to 1986. Includes every part needed for smooth shifting and response. Made in USA with top-quality materials and assembly. Improves transmission feel for better driving performance.	Limited fit only for specific GM/Chevy models from 1969-1986 Installation may be tricky without professional experience No instructions included for beginners or first-timers

Perfect For:

This JEGS Transmission Rebuild Kit is perfect for car enthusiasts and DIY mechanics who want to fix their classic GM or Chevy vehicles. It’s ideal for improving shift feel and response in 1969-1986 models.

Ready to Purchase?

View Price on Amazon (paid link)

6. JEGS TH-350 Transmission Pan Kit | 2” Deep Pan | Chrome Steel | Includes Magnetic Drain Plug | Kit includes Filter, Gasket, And 4 Quarts Of Trans Fluid

This kit upgrades your GM/Chevy TH350 transmission. The pan is 2 inches deep and made of chrome steel. It includes a magnetic drain plug, filter, gasket, and 4 quarts of fluid.

The pan adds extra fluid capacity. The magnetic drain plug helps catch metal bits.

Installation is simple and complete. Chrome steel resists rust and lasts long. Everything you need is in the box.

Pros	Cons
Upgrade your transmission with this easy kit. Fits GM/Chevy TH350 transmissions perfectly. Deeper pan for better fluid capacity. Durable chrome steel for lasting performance. Complete kit with fluid and filter.	Potential fitment issues due to 2-inch depth Heavier than aluminum transmission pans May require additional fluid beyond included 4 quarts

Perfect For:

This JEGS TH-350 Transmission Pan Kit is perfect for GM/Chevy TH350 owners looking for an easy upgrade. It provides everything you need for a smooth, powerful transmission.

Ready to Purchase?

View Price on Amazon (paid link)

7. JEGS Transmission Filter And Gasket Kit | Fits TH-350 (Including Metric) Chevrolet, Buick, Oldsmobile, And Pontiac Transmissions | Includes Filter, Pan Gasket, And Filter Gasket

JEGS Transmission Filter And Gasket Kit | Fits TH-350 (Including Metric) Chevrolet, Buick, Oldsmobile, And Pontiac Transmissions | Includes Filter, Pan Gasket, And Filter Gasket

The JEGS Transmission Filter and Gasket Kit is essential for maintaining your vehicle’s transmission. It helps extend the life of your transmission. This kit is perfect for fluid changes and valve body maintenance.

It fits TH350 (including metric) Chevrolet, Buick, Oldsmobile, and Pontiac transmissions. The kit includes a filter, pan gasket, and filter gasket. These parts are made from high-quality components for durability.

With this kit, you can keep your transmission working smoothly. It’s an ideal solution for maintenance.

Pros	Cons
Extends transmission life with essential components for proper function. Fits multiple brands, including Chevrolet, Buick, Oldsmobile, and Pontiac. Perfect for maintenance, ideal for fluid changes and valve body care. High-quality materials ensure durability and reliable performance.	Unclear metric compatibility details Limited included components (only three parts) Potential durability issues over time

Perfect For:

This JEGS Transmission Filter and Gasket Kit is perfect for DIY mechanics and car enthusiasts who want to maintain their Chevrolet, Buick, Oldsmobile, or Pontiac vehicles with TH-350 transmissions. It’s an essential purchase for anyone performing fluid changes or valve body maintenance to ensure their transmission runs smoothly and lasts longer.

Ready to Purchase?

View Price on Amazon (paid link)

8. 250/350 Transmission Rebuild Kit, Master Less Steels 1969-1979

Get your transmission running like new. This 250/350 Transmission Rebuild Kit is built for 1969-1979 Master Less Steels. It offers everything you need in one package.

The kit includes an Overhaul Kit with all the essential gaskets, seals, and rubber parts. Plus, it has a Raybestos Friction Clutch Pack (RCP96-036) for smooth gear shifts.

You get only premium parts from top suppliers. This means reliable performance and a longer-lasting transmission.

Pros	Cons
Premium parts ensure a reliable and long-lasting rebuild. Complete kit includes all essential components for a smooth job. Raybestos clutch pack delivers superior performance and durability. Industry-leading suppliers guarantee top-quality and trustworthy results.	No detailed instructions for assembly included. May require additional tools not listed.

Perfect For:

This kit is perfect for mechanics and car enthusiasts who want a reliable and easy rebuild for their 1969-1979 250/350 transmissions. It fits those who need top-quality parts that last long and work great. If you want a smooth clutch and strong seals, this kit has what you need.

Ready to Purchase?

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9. th350 (68-up) transmission rebuilt kit banner overhault kit and clutches Automatic transmission

This TH350 transmission rebuild kit includes OEM components from top suppliers. It has clutches and parts for a full overhaul.

International buyers pay import taxes. Returns must stay unopened in original packaging. The kit combines best brands for easy repair.

Pros	Cons
OEM components ensure top quality and reliability. Best brands in one convenient box for easy repairs. Trusted suppliers guarantee durable and long-lasting parts. Simple returns accepted in original, unopened packaging.	International buyers pay extra for import taxes and fees Returns accepted only if packaging is completely unopened Limited to OEM parts, no custom or aftermarket options

Perfect For:

This product is perfect for mechanics and DIYers rebuilding a TH350 transmission. It includes OEM components and top brands for reliable, long-lasting repairs.

Ready to Purchase?

View Price on Amazon (paid link)

10. TH350 Turbo 350 Transmission Raybestos Stage 1 Master Level 2 Rebuild Kit

The TH350 Turbo 350 Transmission Raybestos Stage 1 Master Level 2 Rebuild Kit is made with high-quality clutches from Raybestos. It also includes a premium Transtec gasket kit. This rebuild kit meets the standards of professional installers.

This kit has all the necessary parts for a complete rebuild. It features Raybestos Stage 1 friction plates, steel plates, and a filter. You also get sealing rings, gaskets, and modulator for easy installation.

Raybestos Stage-1 frictions are designed for performance and heavy-duty use. They can handle higher temperatures and are perfect for street rods and tuner cars.

Pros	Cons
High-quality USA-made clutches ensure durability Includes all essential parts for complete rebuild Affordable upgrade for performance and towing needs Enhances heavy-duty performance and heat resistance Transtec gasket kit guarantees reliable sealing	Pricey compared to basic rebuild kits. May be overkill for simple daily driving. Installation can be tricky for beginners.

Perfect For:

This TH350 Turbo 350 Transmission Rebuild Kit is perfect for car owners and mechanics who want strong and reliable performance. It works great for street cars, towing, and mild racing.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

Finding the right transmission kit is easy. This guide will help you pick the best one for your needs.

User Experience

Imagine your vehicle running smoothly again. With the right kit, you can get back on the road with confidence. You’ll appreciate the ease of installation and the durability of quality parts.

Factors to Consider

Transmission Model: Make sure the kit is specifically for your TH-350 transmission. Some kits fit various models like THM-250, 250C, 350C, and 375B. Always double-check compatibility.
Kit Type: Decide if you need a full rebuild kit or just a seal and filter kit. Rebuild kits include everything for a complete overhaul. Seal and filter kits are for basic maintenance or fixing leaks.
Components Included: Check what parts are in the kit. Look for gaskets, seals, friction plates, bushings, filters, and any other specific items you might need. A comprehensive kit saves you extra trips.
Material Quality: High-quality materials ensure durability and reliability. Look for kits made with premium components and metal-clad seals for better performance.
Ease of Installation: Some kits offer features that make installation easier. For example, a 3rd Hand Pan Gasket can be a real help. Simple installation means less time and effort.
Brand Reputation: Stick with trusted brands known for their quality. Brands like JEGS, BIGLKNM, ATP, and GOLKNHA are often mentioned for their good products.
Specific Features: Consider if you need specialized parts like a 2-inch deep pan or a magnetic drain plug. These can add extra capacity or help catch metal debris.
Warranty and Support: A 1-year warranty and 24/7 customer service offer peace of mind. Knowing you have support can make a big difference.

Top Picks

JEGS Complete Transmission Rebuild Kit: An all-in-one option for 1969-1986 GM/Chevy TH-350 (non-lockup) with a 30-spline input shaft. Made in USA.
BIGLKNM TH350 Transmission Seal Filter Kit: A good choice for sealing leaks in Turbo 350 transmissions, fitting various THM models. Made from high-quality materials.
ATP B-37 Automatic Transmission Filter Kit: Offers premium filtration and a unique 3rd Hand Pan Gasket for easy, leak-free installation.
GOLKNHA Turbo 350 TH350 TH350C Transmission External Gasket Seal Reseal Kit: Provides maximum coverage with high-quality metal-clad seals and comes with a 1-year warranty.
JEGS Transmission Rebuild Kit (TH350C, TH250, TH250C): Another all-in-one kit from JEGS, fitting a range of GM/Chevy models from 1969-1986. Made in the USA.
JEGS TH-350 Transmission Pan Kit: An upgrade kit with a 2-inch deep chrome steel pan, magnetic drain plug, filter, gasket, and 4 quarts of fluid.
JEGS Transmission Filter And Gasket Kit: Essential for fluid changes and maintenance, fitting TH-350 (including metric) and other GM transmissions.
250/350 Transmission Rebuild Kit, Master Less Steels 1969-1979: A master rebuild kit for specific models, including a Raybestos Friction Clutch Pack. Uses premium parts.
th350 (68-up) transmission rebuilt kit banner overhault kit and clutches: Features OEM components from top suppliers, including clutches for a full overhaul.
TH350 Turbo 350 Transmission Raybestos Stage 1 Master Level 2 Rebuild Kit: Uses Raybestos Stage 1 friction plates for performance and heavy-duty use, suitable for higher temperatures.

What other transmission maintenance tasks are you curious about?