Best 1969-1986 GM TH-350 Rebuild Kit

Need the best 1969-1986 GM TH-350 rebuild kit? We offer a complete, precision-engineered solution with every seal, gasket, and bushing you need, made in the USA to meet OEM specs for a leak-proof, hassle-free rebuild.

Looking for a complete rebuild kit for your 1969-1986 GM TH-350 transmission? These kits are built to last. They include every seal, gasket, and bushing you need.

Precision-engineered parts ensure a perfect fit. Made in the USA, they meet OEM specs for durability. Leak-proof seals and high-heat resistance keep your transmission running smooth.

Drivers love how these kits cut rebuild time in half. One user said, “My TH-350 feels like new—no leaks, no hassle.” Ready to fix it right? Your perfect guide starts here.

List of Top 10 1969-1986 GM TH-350 Rebuild Kit

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

This JEGS Complete Transmission Rebuild Kit is perfect for car enthusiasts and DIY mechanics who want to fix their 1969-1986 GM or Chevy TH-350 transmission. It’s easy to use and includes everything needed for a smooth repair.

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Pump, Gasket, Seals, Bushing & Gears (0.723 Pump, Gasket, Seals, Bushing & Gears (0.723″ thick) GM TH350, 1969-1986 TH-350/250

This pump, gasket, seals, bushing & gears set is perfect for anyone working on GM TH350 and TH250 transmissions from 1969 to 1986. Whether you’re into heavy-duty repairs, high-performance racing upgrades, or regular maintenance, this kit gives you everything you need for a smooth, reliable rebuild.

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TH350 Speedo Housing Kit for GM TH350 Transmission 1969 & Up, Speedometer Turbo 350 Includes Retainer Bracket, Extra Seals, Lock Washer & Bolts, Prevents Fluid Leaks, Accurate Gear Engagement- 1 Set TH350 Speedo Housing Kit for GM TH350 Transmission 1969 & Up, Speedometer Turbo 350 Includes Retainer Bracket, Extra Seals, Lock Washer & Bolts, Prevents Fluid Leaks, Accurate Gear Engagement- 1 Set

This TH350 Speedo Housing Kit is perfect for car enthusiasts and mechanics who want to keep their GM TH350 transmissions running smoothly. It’s ideal for anyone needing a reliable, leak-free speedometer setup that fits 1969 and newer models. If you want easy installation, long-lasting parts, and peace of mind on the road, this kit is made for you.

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

This BIGLKNM TH350 Transmission Seal Filter Kit is perfect for anyone dealing with a leaking Turbo 350 transmission. If your TH350, TH350C, or similar transmission needs a reliable reseal, this kit offers an OEM fit and is made from long-lasting, high-temperature resistant material.

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Damyprd Turbo 350 TH350C Transmission Front Pump Seal Kit with Bushing - Compatible with GM Vehicles 1969-1986 (Front Pump Seal Replacement Kit) Damyprd Turbo 350 TH350C Transmission Front Pump Seal Kit with Bushing – Compatible with GM Vehicles 1969-1986 (Front Pump Seal Replacement Kit)

This Damyprd Turbo 350 TH350C Transmission Front Pump Seal Kit is perfect for car owners and mechanics who need a reliable fix for GM vehicles from 1969 to 1986. It’s easy to install and built to last, making it ideal for anyone looking to restore smooth gear shifts and prevent leaks.

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TH350 Front Pump Leak Sealing Kit 1969-Up Turbo 350 Transmission TH350 Front Pump Leak Sealing Kit 1969-Up Turbo 350 Transmission

This TH350 Front Pump Leak Sealing Kit is perfect for anyone with a 1969 or newer Turbo 350 Transmission that’s leaking from the front pump. It’s easy to use and includes all new parts to fix the problem fast.

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TH350 Speedometer Gear Housing Kit for GM TH350 Transmission 1969 & Up, Turbo 350 Speedometer Seal Kit with Extra Seals and Retainer Bracket (1 Set) TH350 Speedometer Gear Housing Kit for GM TH350 Transmission 1969 & Up, Turbo 350 Speedometer Seal Kit with Extra Seals and Retainer Bracket (1 Set)

This TH350 Speedometer Gear Housing Kit is perfect for anyone who owns or works on GM TH350 transmissions from 1969 and up. If you want to stop fluid leaks and keep your transmission running smoothly, this kit with its heavy-duty parts and extra seals is made just for you. It’s ideal for mechanics and car enthusiasts who need a reliable, long-lasting fix that fits perfectly and protects their transmission.

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Turbo TH350 350C Transmission Overhaul Rebuild Kit (1969-1986) Farpak Gasket Turbo TH350 350C Transmission Overhaul Rebuild Kit (1969-1986) Farpak Gasket

This Turbo TH350 350C Transmission Overhaul Rebuild Kit is perfect for car enthusiasts and mechanics who want to restore or maintain classic vehicles from 1969 to 1986. It’s ideal for anyone looking for a reliable, easy-to-install kit that brings their transmission back to life with quality parts from Wellington Parts Corp. If you want to keep your ride running smooth and strong, this kit is made just for you.

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Damyprd Turbo 350 TH350C Transmission Rear Housing Sealup Kit with Bushing 1969-1986 Damyprd Turbo 350 TH350C Transmission Rear Housing Sealup Kit with Bushing 1969-1986

This Damyprd Turbo 350 TH350C Transmission Rear Housing Sealup Kit is perfect for DIY mechanics and auto enthusiasts who want to restore their classic Turbo 350 or TH350C transmission from 1969-1986. If you’re looking for a reliable, complete solution to stop leaks and ensure smooth operation, this kit is your go-to.

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Pump, Gasket, Seals, Bushing & Gears (0.727 Pump, Gasket, Seals, Bushing & Gears (0.727″ thick), Compatible with TH350, 1969-1986, TH-350/250 THM

This pump, gasket, seals, bushing, and gears set is perfect for car enthusiasts and mechanics who need a reliable replacement for their 1969-1986 General Motors vehicles. It’s ideal for heavy-duty, high-performance, and regular use.

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Detailed Reviews

Discover the Best 1969-1986 GM TH-350 Rebuild Kit with our expert-picked guide. Each kit is chosen for quality, fit, and reliability to get your transmission running like new. We break down the top options so you can find the perfect match for your needs. Read on to make your rebuild simple and confident.

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

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

The JEGS Complete Transmission Rebuild Kit is a perfect fit for 1969-1986 GM or Chevy TH-350 transmissions. It works with non-lockup converters and 30-spline input shafts. This kit is made in the USA with high-quality materials.

It includes all paper gaskets, rubber seals, friction plates, and more. Everything you need for a complete rebuild is in one box. No need to guess or shop around.

This all-in-one kit saves time and effort. Basic kits are also available for smaller repairs. Trust JEGS for reliable transmission solutions.

Pros Cons
  • Complete kit removes all transmission repair guesswork.
  • Fits 1969-1986 GM Chevy TH-350 non-lockup models perfectly.
  • Includes all seals, gaskets, plates, and bushings needed.
  • Made in the USA with top-quality materials.
  • Separate basic overhaul kits available for smaller repairs.
  • Not for lockup converters, check your transmission type before buying.
  • No instructions included, might need expert help for installation.
  • Basic kits sold separately, could mean extra costs for full rebuild.

Perfect For:

This JEGS Complete Transmission Rebuild Kit is perfect for car enthusiasts and DIY mechanics who want to fix their 1969-1986 GM or Chevy TH-350 transmission. It’s easy to use and includes everything needed for a smooth repair.

Ready to Purchase?

2. Pump, Gasket, Seals, Bushing & Gears (0.723″ thick) GM TH350, 1969-1986 TH-350/250

Pump, Gasket, Seals, Bushing & Gears (0.723

Get ready to upgrade your GM TH350 or TH250 transmission with this all-in-one pump kit. It includes pump gears (0.723″ thick), gasket, bushing, seal rings, and 8 metal washers—everything you need for a perfect fit. Designed for heavy-duty, high-performance, and regular use, this kit is built to last.

The precision bushing fits right in without machining. Made with metal-clad seal materials like Silicon or Vamac, it ensures a tight, leak-free seal. This kit covers models from 1969 to 1986, making it the smart choice for your transmission rebuild.

Pros Cons
  • Complete set with pump gears, gasket, seals, and bushings included.
  • Fits perfectly for 1969-1986 GM TH350 and TH250 models.
  • Heavy-duty and high-performance ready for racing or regular use.
  • Precision bushing requires no machining—easy direct replacement.
  • Durable metal-clad seals ensure long-lasting leak protection.
  • Limited to specific GM models from 1969-1986 only.
  • Thicker pump gears may not fit all setups perfectly.
  • Some users may find extra washers unnecessary or confusing.

Perfect For:

This pump, gasket, seals, bushing & gears set is perfect for anyone working on GM TH350 and TH250 transmissions from 1969 to 1986. Whether you’re into heavy-duty repairs, high-performance racing upgrades, or regular maintenance, this kit gives you everything you need for a smooth, reliable rebuild.

Ready to Purchase?

3. TH350 Speedo Housing Kit for GM TH350 Transmission 1969 & Up, Speedometer Turbo 350 Includes Retainer Bracket, Extra Seals, Lock Washer & Bolts, Prevents Fluid Leaks, Accurate Gear Engagement- 1 Set

TH350 Speedo Housing Kit for GM TH350 Transmission 1969 & Up, Speedometer Turbo 350 Includes Retainer Bracket, Extra Seals, Lock Washer & Bolts, Prevents Fluid Leaks, Accurate Gear Engagement- 1 Set

Get your GM TH350 transmission running smooth with the TH350 Speedo Housing Kit. It fits perfectly on all models from 1969 and up. This kit stops leaks and keeps your speedometer accurate.

Made from strong steel and durable rubber, it handles heat and pressure like a pro. The secure retainer bracket locks everything tight, so you avoid costly driveline problems. Plus, it comes with extra seals and bolts—always be ready for the road.

Pros Cons
  • Perfect fit for GM TH350 transmissions, 1969 & up.
  • Prevents fluid leaks with extra seals and O-rings.
  • Secure locking design ensures long-term reliability.
  • Premium materials for extreme conditions and durability.
  • Limited to GM TH350 transmissions from 1969 and up only.
  • Installation may require specific tools or mechanical know-how.
  • Extra parts included might be unnecessary for some users.

Perfect For:

This TH350 Speedo Housing Kit is perfect for car enthusiasts and mechanics who want to keep their GM TH350 transmissions running smoothly. It’s ideal for anyone needing a reliable, leak-free speedometer setup that fits 1969 and newer models. If you want easy installation, long-lasting parts, and peace of mind on the road, this kit is made for you.

Ready to Purchase?

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

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

Keep your Turbo 350 transmission running smoothly with the BIGLKNM TH350 Transmission Seal Filter Kit. This kit is designed for all THM-250, 250C, 350, 350C, and 375B transmissions. It’s a perfect fit for your vehicle.

This th350 seal kit will stop leaks in your transmission. It’s made from long-lasting materials for durability.

Get back on the road with confidence. This kit ensures a tight seal and reliable performance. It’s a smart choice for your transmission needs.

Pros Cons
  • Fits all Turbo 350 models, any year.
  • Stops leaks with high-quality seals and gaskets.
  • Durable materials resist heat and corrosion, lasts longer.
  • Perfect OEM fit, no hassle installation.
  • No installation tools included, so you’ll need to buy them separately.
  • Limited compatibility with non-Turbo 350 transmissions, check before buying.
  • No instructions provided, might be tricky for first-time users.

Perfect For:

This BIGLKNM TH350 Transmission Seal Filter Kit is perfect for anyone dealing with a leaking Turbo 350 transmission. If your TH350, TH350C, or similar transmission needs a reliable reseal, this kit offers an OEM fit and is made from long-lasting, high-temperature resistant material.

Ready to Purchase?

5. Damyprd Turbo 350 TH350C Transmission Front Pump Seal Kit with Bushing – Compatible with GM Vehicles 1969-1986 (Front Pump Seal Replacement Kit)

Damyprd Turbo 350 TH350C Transmission Front Pump Seal Kit with Bushing - Compatible with GM Vehicles 1969-1986 (Front Pump Seal Replacement Kit)

This seal kit fits GM Turbo 350 transmissions from 1969–1986. It includes a front pump seal, bronze bushing, and tools for easy install. Built to OEM specs for leak-free use and smooth shifts.

Viton seals and bronze bushing handle extreme heat up to 400°F. Works with Chevrolet, GMC, Cadillac, and Oldsmobile models.

Pros Cons
  • Leak-free performance with precision-fit OEM specs.
  • Durable Viton seals handle extreme heat up to 400°F.
  • Complete kit for full pump rebuild, no extras needed.
  • GM-compatible for 1969-1986 models, wide coverage.
  • Secure installation with anti-rotation design, long-lasting.
  • Limited Compatibility: May not fit all GM models within 1969-1986 range
  • Installation Complexity: Requires professional tools or experience for precise alignment
  • Higher Cost: Priced higher than generic seal kits without clear longevity benefits

Perfect For:

This Damyprd Turbo 350 TH350C Transmission Front Pump Seal Kit is perfect for car owners and mechanics who need a reliable fix for GM vehicles from 1969 to 1986. It’s easy to install and built to last, making it ideal for anyone looking to restore smooth gear shifts and prevent leaks.

Ready to Purchase?

6. TH350 Front Pump Leak Sealing Kit 1969-Up Turbo 350 Transmission

TH350 Front Pump Leak Sealing Kit 1969-Up Turbo 350 Transmission

Fix your TH350 front pump leak fast. This kit fits 1969 and up Turbo 350 transmissions. It comes with all new parts.

Get a front pump gasket, O-ring, and metal clad seal. Plus, a bushing and bolt washers.

Everything you need is included. Stop leaks and drive with confidence.

Pros Cons
  • Fixes leaks quickly for GM TH350 transmissions, 1969 & up
  • Includes all new parts for a reliable repair
  • Comes with a complete set: gasket, oring, seal, bushing, washers
  • Easy to install with everything you need in one kit
  • Prevents costly damage by sealing front pump leaks fast
  • Installation may be challenging for beginners
  • Not compatible with all GM transmission models
  • Lack of detailed installation instructions included

Perfect For:

This TH350 Front Pump Leak Sealing Kit is perfect for anyone with a 1969 or newer Turbo 350 Transmission that’s leaking from the front pump. It’s easy to use and includes all new parts to fix the problem fast.

Ready to Purchase?

7. TH350 Speedometer Gear Housing Kit for GM TH350 Transmission 1969 & Up, Turbo 350 Speedometer Seal Kit with Extra Seals and Retainer Bracket (1 Set)

TH350 Speedometer Gear Housing Kit for GM TH350 Transmission 1969 & Up, Turbo 350 Speedometer Seal Kit with Extra Seals and Retainer Bracket (1 Set)

The TH350 Speedometer Gear Housing Kit is made to fit GM TH350 transmissions from 1969 and up. It comes with both metric and non-metric bolts for easy installation. This kit stops fluid leaks with a strong metal-clad seal and outer o-ring.

Built from premium stainless steel, it resists heat and corrosion for long life. The kit includes a heavy-duty bracket, bolts, lock washer, and extra seals to keep your transmission safe and leak-free.

Pros Cons
  • Perfect fit for all GM TH350 transmissions (1969 & up).
  • Stops fluid leaks with dual metal-clad and o-ring seals.
  • Heavy-duty mounting kit keeps housing secure and stable.
  • Made from premium stainless steel for long-lasting durability.
  • Includes extra seals and bolts for future maintenance.
  • Limited to GM TH350 models only (1969 & up) — not universal.
  • Requires periodic seal replacement to prevent future leaks.
  • Installation may need extra tools or expertise for some users.

Perfect For:

This TH350 Speedometer Gear Housing Kit is perfect for anyone who owns or works on GM TH350 transmissions from 1969 and up. If you want to stop fluid leaks and keep your transmission running smoothly, this kit with its heavy-duty parts and extra seals is made just for you. It’s ideal for mechanics and car enthusiasts who need a reliable, long-lasting fix that fits perfectly and protects their transmission.

Ready to Purchase?

8. Turbo TH350 350C Transmission Overhaul Rebuild Kit (1969-1986) Farpak Gasket

Turbo TH350 350C Transmission Overhaul Rebuild Kit (1969-1986) Farpak Gasket

Revitalize your ride with this transmission rebuild kit. It’s designed for Turbo TH350 and 350C transmissions. Get your vehicle running smoothly again.

This kit is from Wellington Parts Corp. It’s a Farpak Gasket for 1969-1986 models.

It’s a great choice for automotive enthusiasts. Get the quality parts you need.

Pros Cons
  • Complete rebuild kit designed for Turbo TH350 350C transmissions.
  • Fits models from 1969 to 1986 for wide compatibility.
  • Includes Farpak gasket for reliable sealing.
  • Made by trusted Wellington Parts Corp brand.
  • Lightweight and easy to handle at just 0.11 pounds.
  • Limited compatibility: Only fits 1969-1986 Turbo TH350 350C models.
  • Small weight: May feel lightweight, raising durability questions.
  • No included instructions: Installation guidance not provided in kit.

Perfect For:

This Turbo TH350 350C Transmission Overhaul Rebuild Kit is perfect for car enthusiasts and mechanics who want to restore or maintain classic vehicles from 1969 to 1986. It’s ideal for anyone looking for a reliable, easy-to-install kit that brings their transmission back to life with quality parts from Wellington Parts Corp. If you want to keep your ride running smooth and strong, this kit is made just for you.

Ready to Purchase?

9. Damyprd Turbo 350 TH350C Transmission Rear Housing Sealup Kit with Bushing 1969-1986

Damyprd Turbo 350 TH350C Transmission Rear Housing Sealup Kit with Bushing 1969-1986

The Damyprd Turbo 350 TH350C Transmission Rear Housing Sealup Kit is made for transmissions from 1969 to 1986. It fits perfectly and works like new.

This kit has all the parts you need. It seals tight to stop leaks. The parts are tough and last long.

You can install it easily. It matches your original parts. Fix your transmission fast and right.

Pros Cons
  • Perfect fit for 1969-1986 Turbo 350 TH350C transmissions.
  • Complete kit for easy, all-in-one transmission repair.
  • Precision engineering ensures no leaks, reliable performance.
  • Durable materials handle heat and fluid exposure effortlessly.
  • Simple installation, matches OEM specs for quick fixes.
  • Limited compatibility with other transmission models.
  • No tools included for installation.
  • Basic instructions, may need extra guidance.

Perfect For:

This Damyprd Turbo 350 TH350C Transmission Rear Housing Sealup Kit is perfect for DIY mechanics and auto enthusiasts who want to restore their classic Turbo 350 or TH350C transmission from 1969-1986. If you’re looking for a reliable, complete solution to stop leaks and ensure smooth operation, this kit is your go-to.

Ready to Purchase?

10. Pump, Gasket, Seals, Bushing & Gears (0.727″ thick), Compatible with TH350, 1969-1986, TH-350/250 THM

Pump, Gasket, Seals, Bushing & Gears (0.727

This pump kit is built tough for heavy-duty, high-performance, and regular use. It includes pump gears (0.727″ thick), gasket, bushing, rubber seal rings, and metal washers. The parts fit TH350 and TH250 transmissions from 1969 to 1986.

The bushing is precision-made and fits better than the original. The seal material is a high-temp elastomer rubber for lasting durability. This kit works with many General Motors models like Chevy, Pontiac, and Cadillac.

Pros Cons
  • Perfect fit for heavy-duty and high-performance applications.
  • Direct replacement, no machining needed for easy installation.
  • Hi-Temp rubber seals ensure durability under extreme conditions.
  • Compatible with 1969-1986 GM, Chevy, and more models.
  • Not for modern cars, only fits older models (1969-1986).
  • Requires specific washers, check before installing.
  • No instructions included, expertise needed for assembly.

Perfect For:

This pump, gasket, seals, bushing, and gears set is perfect for car enthusiasts and mechanics who need a reliable replacement for their 1969-1986 General Motors vehicles. It’s ideal for heavy-duty, high-performance, and regular use.

Ready to Purchase?

Buying Guide

Looking for the best rebuild kit for your 1969-1986 GM TH-350? You want a kit that fits perfectly. You want parts that last long. Many users say these kits make their transmission feel like new with no leaks or hassle.

Factors to Consider When Buying a GM TH-350 Rebuild Kit:

  • Complete Parts Included:
    Choose a kit that has every seal, gasket, bushing, friction plate, and filter you need. This saves time and avoids extra trips to the store.

  • Compatibility:
    Make sure the kit fits your exact model year and transmission type. Some kits are for non-lockup converters and 30-spline input shafts, while others cover a wider range.

  • Quality of Materials:
    Look for kits made in the USA with OEM-spec parts. High-quality seals like Viton or metal-clad seals resist leaks and heat better.

  • Heat Resistance:
    Transmission parts face high temperatures. Kits with high-heat resistant seals and bushings ensure durability and smooth shifting.

  • Ease of Installation:
    Kits with precision-engineered parts fit right in without machining. Some include tools or extra hardware like bolts and washers for a hassle-free rebuild.

  • User Reviews and Ratings:
    Check what other drivers say. Positive feedback about leak-proof seals and reduced rebuild time is a good sign.

  • Brand Reputation:
    Trusted brands like JEGS, Raybestos, and others have decades of experience and offer reliable kits.

  • Price vs. Value:
    A complete kit might cost more upfront but saves money by including all needed parts and reducing rebuild time.

  • Special Features:
    Some kits include extras like speedometer housing seals or front pump seal kits to fix common leak points.

Choosing the right rebuild kit means your GM TH-350 transmission will run smooth and last longer. Pick a kit with all the parts, quality materials, and good reviews. Your rebuild will be easier and more reliable.