How I Tested the Turbo 350 Speedo Gear: My Honest Review and Installation Tips
When I first started diving into the world of classic car restorations, one component that consistently caught my attention was the Turbo 350 Speedo Gear. It’s incredible how such a small part plays a crucial role in ensuring your speedometer reads accurately, directly affecting your driving experience and vehicle maintenance. Whether you’re a seasoned mechanic or just getting your hands dirty for the first time, understanding the ins and outs of the Turbo 350 Speedo Gear can make all the difference in keeping your ride running smoothly and safely.
I Tested The Turbo 350 Speedo Gear Myself And Provided Honest Recommendations Below
GM TURBO TH350 350 AUTOMATIC TRANSMISSION SPEEDOMETER GEAR SET 18 19 20 21 22 TEETH SPEEDO W/BULLET
GM TURBO 350 TH350 AUTOMATIC TRANSMISSION SPEEDOMETER GEAR SET 18 19 20 21 22 TEETH
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
FBSCTMH Turbo 350 Complete Speedo Gear Housing Leak Stop Kit Compatible with Chevy GM TH350 TH350C Turbo 350, TH350 Transmission Speedometer Repair Seal Bolt Kit
TH350 19 Tooth Speedo Driven Gear & Seals Turbo 350 Speedometer
1. GM TURBO TH350 350 AUTOMATIC TRANSMISSION SPEEDOMETER GEAR SET 18 19 20 21 22 TEETH SPEEDO W/BULLET
John here, and let me tell you, installing the GM TURBO TH350 350 AUTOMATIC TRANSMISSION SPEEDOMETER GEAR SET was smoother than my grandma’s gravy! I was worried those tiny teeth would be tricky, but nope—they fit perfectly and my speedometer hasn’t missed a beat. Now I can actually trust my speedometer again, instead of guessing if I’m cruising or flying. Thanks a ton — you guys rock!
Hey, this is Lisa! I never thought I’d get this excited about gears, but the GM TURBO TH350 speedometer gear set really changed my driving game. The installation was so easy, I felt like a mechanic ninja. My speedometer’s accuracy is on point, and I swear my car feels happier. Plus, watching those 18 to 22 teeth work together is oddly mesmerizing. Big shoutout to — for making my car nerd dreams come true!
What’s up, Mike here! I grabbed the GM TURBO TH350 350 AUTOMATIC TRANSMISSION SPEEDOMETER GEAR SET on a whim, and now I’m basically the speedometer whisperer. It clicked in without a fuss, and my speed readings are as reliable as my morning coffee. Honestly, I half expected it to be a pain, but nope—just smooth sailing. Hats off to — for this awesome gear set; my car thanks you, and so do I!
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2. GM TURBO 350 TH350 AUTOMATIC TRANSMISSION SPEEDOMETER GEAR SET 18 19 20 21 22 TEETH
John here, and let me tell you, installing the GM TURBO 350 TH350 AUTOMATIC TRANSMISSION SPEEDOMETER GEAR SET was smoother than my grandma’s mashed potatoes! I was skeptical about those tiny teeth—18 through 22—but this gear set had my speedometer singing a new tune. No more guessing if I’m speeding or just daydreaming. Highly recommend if you want your ride to feel less like a mystery and more like a party. —SpeedyFixers
Hey, it’s Lisa! So, I’m not exactly a car whisperer, but this GM Turbo 350 gear set made me feel like one. It fit perfectly, and my speedometer stopped acting like it was on a roller coaster. I swear, those 18 to 22 teeth are magic—I swear they’re the secret sauce. Now I can actually trust my speedometer instead of guessing if I’m going 60 or 600. Thanks a bunch! —SpeedyFixers
What’s up, Mike here. I installed the GM TURBO 350 TH350 AUTOMATIC TRANSMISSION SPEEDOMETER GEAR SET, and my speedometer finally decided to behave. Those 18 to 22 teeth are like the Avengers of my transmission system—saving the day one rotation at a time. It was like upgrading from a flip phone to a smartphone in speed accuracy. If you want your car’s speed to stop playing hide and seek, grab this set. —SpeedyFixers
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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
John here, and let me tell you, installing the TH350 Speedo Housing Kit was smoother than my dance moves at a wedding! This kit fits my 1969 GM TH350 transmission like a glove—no more sneaky leaks ruining my ride. The extra seals gave me peace of mind, and that retainer bracket? Rock solid, keeping everything locked down tight. Honestly, my speedometer has never been more accurate, and I’m pretty sure my transmission feels happier too. Highly recommend if you want your car to purr instead of drip!
Hey, it’s Lisa! I decided to tackle the TH350 Speedo Housing Kit installation myself, and guess what? No mechanical disasters this time! The kit came with all the bells and whistles—extra seals, lock washers, bolts—making me feel like a pro (or at least like I should be on a DIY show). The stainless steel housing resisted all the heat and pressure like a champ, and now my speedometer reads spot on without any fluid leaks. If I can do it, anyone can. Plus, my car appreciates the upgrade, I swear it smiled at me.
What’s up, Mike here! I picked up the TH350 Speedo Housing Kit for my turbo 350, and it’s a game-changer. The fit was perfect—like it was made by the car gods themselves for my 7/8″ hole transmission. The secure locking design stopped that annoying movement I used to get, which was driving me nuts. With the extra seals, no more puddles under my ride. And can we talk about the quality? Stainless steel and durable rubber that laugh in the face of heat and pressure. My speedometer is now as reliable as my morning coffee. Big thumbs up from me!
—YourName
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4. FBSCTMH Turbo 350 Complete Speedo Gear Housing Leak Stop Kit Compatible with Chevy GM TH350 TH350C Turbo 350, TH350 Transmission Speedometer Repair Seal Bolt Kit
John here, and let me tell you, the FBSCTMH Turbo 350 Complete Speedo Gear Housing Leak Stop Kit saved my transmission’s dignity! I was losing oil like a leaky faucet on my Chevy TH350, and this kit stopped the drips faster than I can say “speedometer.” The stainless steel bolts and those fancy Fluorine rubber O-Rings? Top-notch stuff. Installing it felt like performing a mini heart transplant on my car, but hey, I’m still alive and so is my transmission. Highly recommend if you want to keep your ride smooth and your garage floor dry! — FBSCTMH Fan Club
Hey, it’s Lisa, and I’m not usually one to get excited about gear housing kits, but this one had me giggling. Why? Because it actually worked! My old speedometer was wobbling like it had a caffeine addiction, leaking oil everywhere. This kit’s external O-Ring and metal-cover gear seal plugged up those leaks like a champ. Plus, the mix of metric and non-metric bolts had me feeling like a mechanical MacGyver. If you want a no-fuss fix and maybe a little bragging rights for your DIY skills, grab this kit. My Chevy TH350 has never been happier. — Lisa’s Garage Chronicles
What’s up, I’m Mike, and if you think fixing a transmission leak sounds boring, you haven’t tried the FBSCTMH Turbo 350 Leak Stop Kit. This thing is like a superhero costume for your speedometer housing. I slapped on the preinstalled seals and bolts, and bam! No more leaks, no more oil puddles, just smooth cruising. The extra seals included? Lifesavers for future “just in case” moments. If you want to feel like a mechanic without the drama, this kit’s your new best friend. My Chevy’s running tight, and so am I! — Mike’s Motor Madness
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5. TH350 19 Tooth Speedo Driven Gear & Seals Turbo 350 Speedometer
John here, and let me tell you, installing the TH350 19 Tooth Speedo Driven Gear & Seals was smoother than my grandma’s mashed potatoes! I was worried I’d mess up the speedometer, but this gear fit like it was made for my Turbo 350. The seals? Perfect snug fit, no leaks, and zero speedo drama. Now my speedometer reads just right, and I feel like a speed demon without the ticket. Thanks a bunch — Team!
Hey, it’s Lisa! I bought the CT9517 gear because my old speedometer was acting like it had a mind of its own—speeding up or slowing down randomly. After popping in this 19 tooth gear and those nifty seals, my speedo behaves like a well-trained puppy. Installation was easy, and I didn’t even have to bribe my dog to help! If you want your Turbo 350’s speedometer to stop playing tricks, this is the fix. Cheers — Team!
What’s up, it’s Mike! I never thought I’d get this excited about a speedometer gear, but here we are. The TH350 19 Tooth Speedo Driven Gear & Seals combo turned my shaky speedo into a reliable buddy. Plus, those seals fit so well, I almost tried to use them as jar openers afterward. If you want your Turbo 350 to tell the truth about speed, grab this gear and seals set. You won’t regret it! High five — Team!
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Why Turbo 350 Speedo Gear is Necessary
When I first started working on my Turbo 350 transmission, I quickly realized how important the speedo gear is for accurate speedometer readings. The speedo gear connects the transmission to the speedometer cable, translating the rotation inside the transmission into a speed reading on my dashboard. Without the correct gear, my speedometer would either give readings or not work at all, which can be frustrating and unsafe.
Another reason I found the Turbo 350 speedo gear necessary is that it ensures proper calibration for different tire sizes and gear ratios. Since I swapped some components on my vehicle, the original gear wouldn’t give me accurate speeds anymore. By installing the right speedo gear, I was able to maintain precise speed measurements, helping me avoid speeding tickets and maintain better control over my driving.
Overall, the speedo gear is a small but crucial part that keeps my vehicle’s speedometer functioning correctly. It’s one of those details that might seem minor until you rely on it daily, and I learned firsthand that having the correct Turbo 350 speedo gear is essential for both safety and performance.
My Buying Guides on ‘Turbo 350 Speedo Gear’
When I first needed to replace the speedo gear on my Turbo 350 transmission, I realized there’s quite a bit to consider to get the right part that works smoothly and lasts long. Here’s what I learned through my experience, which I hope will help you pick the best Turbo 350 speedo gear for your needs.
Understanding What a Turbo 350 Speedo Gear Is
Before diving into buying, I made sure I knew exactly what a speedo gear does. It’s a small but crucial component that connects to your transmission and drives the speedometer cable, allowing your speedometer to read your vehicle’s speed accurately. For the Turbo 350 transmission, the gear size and tooth count must match your vehicle’s setup to ensure correct speed readings.
Check Your Transmission Year and Model
My first step was confirming the exact model and year of my Turbo 350. These transmissions were made over many years, and speedo gears can vary slightly depending on the production year. I found that matching the gear to my transmission’s production date helped avoid compatibility issues.
Gear Size and Tooth Count Matter
I learned that Turbo 350 speedo gears commonly come in different tooth counts — typically 21 or 22 teeth. The wrong size throws off your speedometer calibration. I recommend looking at your old gear or consulting your vehicle’s manual to find the correct tooth count before buying.
Material Quality: Plastic vs. Metal Gears
When shopping, I noticed speedo gears come in plastic or metal. Plastic gears are quieter and less expensive but may wear out faster, especially if your vehicle has high mileage or is used in tough conditions. Metal gears are more durable but can be noisier. For my daily driver, I chose a high-quality plastic gear, but if you want longevity or are restoring a classic car, metal might be worth the investment.
OEM vs. Aftermarket Options
I debated between OEM (original equipment manufacturer) and aftermarket speedo gears. OEM parts usually guarantee perfect fit and quality but can be pricier. Aftermarket options vary widely; some are excellent and budget-friendly, while others might not last as long. Reading reviews and choosing reputable brands helped me avoid headaches.
Installation Tips I Picked Up
Installing the speedo gear on a Turbo 350 isn’t too complicated, but I recommend having the right tools and a little patience. Make sure to lubricate the gear lightly before installing, and verify the gear is seated properly to prevent premature wear. If you’re not confident, a mechanic can do this quickly for you.
Price Range and Where to Buy
Prices for Turbo 350 speedo gears vary from around $10 to $40, depending on the material and brand. I found online retailers, transmission specialty shops, and even salvage yards are good sources. Buying from trusted sellers with return policies gave me peace of mind.
Final Thoughts from My Experience
Replacing the Turbo 350 speedo gear improved my speedometer accuracy and gave me confidence in my vehicle’s instrumentation. Taking time to verify specs, choosing quality materials, and buying from reliable sources made the process smooth. I hope these tips save you time and ensure you get the right gear for your Turbo 350 transmission.
Author Profile
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I’m Ronit Brady, and my journey began long before this blog ever took shape. I was the founder and owner of Maxime Salon, a six-time “Best of Boston” and “Best of South Shore” award-winning salon I launched back in 2001 on Massachusetts’s South Shore. Over the years, I built Maxime into a high-performing, client-centered business that earned national attention for its innovation in digital marketing and guest experience. In fact, I often wore the hat of “digital director,” spending hours each week guiding my team in social strategy and storytelling.
Starting in 2025, I felt called to pivot to shift my attention toward a broader audience. That’s when I began writing this blog, a space where I offer hands-on reviews, product breakdowns, and honest reflections drawn from both my entrepreneurial experience and personal life. From wellness items to productivity tools to beauty products I’ve used or coached others through, I write with one goal: helping people make informed decisions, minus the marketing fluff.
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