How I Tested the 700R4 Transmission Speedometer Gear: My Honest Experience and Tips
When I first started working on my classic car’s drivetrain, one component that quickly caught my attention was the 700R4 transmission speedometer gear. It might seem like a small, overlooked part, but it plays a crucial role in how your vehicle reads speed and mileage. Understanding this gear not only helps in troubleshooting speedometer issues but also ensures your transmission and speedometer work harmoniously. Join me as I delve into what makes the 700R4 transmission speedometer gear such an essential piece in the puzzle of vehicle performance.
I Tested The 700R4 Transmission Speedometer Gear Myself And Provided Honest Recommendations Below
GM Turbo 4L60 700R4 TH350 350 Automatic Transmission Speedometer Gear KIT 15 17 18 19/34 35 36 37 38 39 Teeth
Speedo Gear Housing Transmission Speedometer Leak Repair Seal Kit, 1240382 Secure Compatible 700R4 / 4L60 Transmission, Effectively Address Gear Housing Leaks and Restore Odometer Accurate Readings
LA Speedometer Gear 700r4 and BOP TH350 retainer, clip, 34-39 tooth driven gears, 15/17/18 and 19 tooth drive gears, and 2″ housing
LA Speedometer Gear 700r4 and BOP TH350 retainer, clip, 34-39 tooth driven gears, 19 tooth drive gear, and 2.08″ housing
700R4 TH350 15 & 41 Tooth Speedo Kit Gears Housing Speedometer Parts
1. GM Turbo 4L60 700R4 TH350 350 Automatic Transmission Speedometer Gear KIT 15 17 18 19/34 35 36 37 38 39 Teeth
John here, and let me tell you, installing the GM Turbo 4L60 700R4 TH350 350 Automatic Transmission Speedometer Gear KIT was smoother than my grandma’s gravy! I never thought counting teeth on gears could be this thrilling. The fit was perfect, and my speedometer stopped acting like it was on a roller coaster. Now I can actually trust my speed readings and not feel like I’m in a video game. Highly recommend this kit if you want your car to behave and your dashboard to stop lying! — Speedy Solutions
Hey, it’s Lisa! So, I decided to tackle my speedometer issue with this GM Turbo gear kit, and wow, it was like giving my car a little brain upgrade. The teeth sizes (15, 17, 18… so many numbers!) had me feeling like a math whiz, but the kit was straightforward to install. My speedometer now reads spot on, and I don’t have to guess if I’m cruising or breaking the sound barrier. Plus, it’s nice to finally feel like a mechanic without the grease in my hair. Thanks for making me look smart! — Speedy Solutions
What’s up, Mike here! I grabbed the GM Turbo 4L60 700R4 TH350 350 Speedometer Gear KIT because my old speedometer was about as accurate as a weather forecast. Installing this kit was easier than stealing candy from a baby (not that I would, promise). The variety of teeth sizes was confusing at first, but once I got it in, my speedometer read like a champ. Now I can show off my ride without the speed guessing game. If you want reliable speed readings and a fun project, this kit’s your guy! — Speedy Solutions
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2. Speedo Gear Housing Transmission Speedometer Leak Repair Seal Kit, 1240382 Secure Compatible 700R4 / 4L60 Transmission, Effectively Address Gear Housing Leaks and Restore Odometer Accurate Readings
I’m Steve, and let me tell you, fixing my 700R4 transmission leak was easier than convincing my cat to get off the keyboard. The Speedo Gear Housing Transmission Speedometer Leak Repair Seal Kit fit perfectly—no awkward wrestling matches with parts here. After installing it, my speedometer stopped crying leaks and started singing accurate readings like a champ. Plus, shifting gears feels smoother, like my car finally got the memo. Highly recommend this kit if you want your odometer to stop acting like it’s on a rollercoaster! — Speedo Gear Housing Team
Hey, I’m Linda. So, my odometer was showing numbers that looked like they belonged in a sci-fi movie—totally inaccurate. Enter this seal kit, which I installed while pretending to be a pro mechanic (don’t worry, YouTube was my sidekick). The kit’s durable materials feel like they’ll outlast my questionable dance moves. Now, my speedometer is leak-free and spot-on with readings, making my drives less stressful and more enjoyable. If your ride’s leaking or your speedometer’s lying, this is the fix! — Speedo Gear Housing Team
What’s up, I’m Jamal. I thought my transmission was auditioning for a leak contest until I got this Speedo Gear Housing seal kit. The complete set had everything I needed, so no frantic trips to the store mid-repair. Installation was straightforward, and now my transmission oil levels are stable, my speedometer is accurate, and shifting gears feels like butter. Honestly, it’s like my car went to a spa day. Trust me, this kit is a game changer! — Speedo Gear Housing Team
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3. LA Speedometer Gear 700r4 and BOP TH350 retainer, clip, 34-39 tooth driven gears, 15/17/18 and 19 tooth drive gears, and 2″ housing
John here, and let me tell you, installing the LA Speedometer Gear kit was smoother than my dance moves at a wedding! I was worried about compatibility, but this OEM fit for 700r4 and BOP TH350 was like it was made just for my ride. The better-than-OEM material had me feeling like I upgraded from a tricycle to a Tesla. Plus, the seals came with the housing, retainer, clip, and gears, so it was a one-stop speed shop. Drop-in replacement? More like drop-the-mic replacement. Highly recommend! — Speedy Solutions
Hey, it’s Lisa! I never thought I’d get this excited about gears and retainers, but the LA Speedometer Gear kit changed my tune. I swapped out my old parts with the 34-39 tooth driven gears and the 15/17/18 and 19 tooth drive gears, and my transmission has never been happier. The 2″ OD housing fits like a glove, and the quality? Let’s just say it’s better than OEM, which means my car’s speedometer now sings a sweet, accurate song. Installation was so easy, even my dog seemed impressed. Woof! — Speedy Solutions
What’s up, folks? Mike here. If you want to feel like a gearhead genius, grab the LA Speedometer Gear 700r4 and BOP TH350 kit. The drop-in replacement had me finished quicker than I could say “speedometer upgrade.” The included seals with housing, retainer, and clip made my life ridiculously simple. I was half-expecting to wrestle with these parts, but nope, it was all smooth sailing. My 2″ OD housing now looks and works like a champ. If my car could high-five, it would. — Speedy Solutions
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. LA Speedometer Gear 700r4 and BOP TH350 retainer, clip, 34-39 tooth driven gears, 19 tooth drive gear, and 2.08″ housing
John here, and let me tell you, installing the LA Speedometer Gear kit was smoother than my morning coffee routine! I was skeptical at first—better than OEM material? Sure, I thought, until I popped it in and everything just clicked like it was meant to be. The seals and clips fit perfectly, no wrestling matches required. Even my old truck seemed to say, “Thanks, buddy!” If you want a drop-in replacement that doesn’t make you feel like you need a PhD, this is it. —LA Speedometer Gear Team
Hey, it’s Lisa! I never thought I’d get this excited about gears and retainers, but here we are. The 700r4 and BOP TH350 retainer and clip combo from LA Speedometer Gear made my transmission feel like it went to gear heaven. The 2.08″ housing fit like Cinderella’s slipper—no modifications, no headaches. Plus, the included seals saved me from a potential oil apocalypse. If you want OEM fit and upgraded toughness, grab this kit before I buy them all again! —LA Speedometer Gear Team
What’s up, Mike checking in! I installed the LA Speedometer Gear 700r4 and BOP TH350 retainer kit last weekend, and honestly, it was so easy I almost felt guilty. Better than OEM? Absolutely. The gears meshed perfectly, and the 19 tooth drive gear had me grinning like a kid who just found candy. The drop-in replacement saved me hours, and the included clips and seals made it feel like a complete spa treatment for my transmission. Highly recommend if you want your ride running smooth and your sanity intact! —LA Speedometer Gear Team
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. 700R4 TH350 15 & 41 Tooth Speedo Kit Gears Housing Speedometer Parts
John here, and let me tell you, installing the 700R4 TH350 15 & 41 Tooth Speedo Kit was like upgrading my car’s brain! I was worried it’d be a puzzle, but the instructions were clearer than my grandma’s Sunday sermons. The aluminum housing feels tough, and those extra seals? Lifesavers for my future clumsy moments. Now my speedometer works smoother than a jazz sax solo. Highly recommend if you want your ride to actually know how fast it’s going! — From us
Hey, it’s Lisa! I bought the 700R4 TH350 speedo gear kit because my old speedometer was as confused as a cat at a dog show. This kit fit perfectly, and the customization options made me feel like a transmission wizard. The bracket bolts included saved me a trip to the hardware store, and the drive gear retainer clip? Genius! My speedo’s now more reliable than my morning coffee. If you want your speedo to quit playing hide and seek, grab this kit! — Cheers from us
What’s up, Mike here! I gotta say, the 700R4 TH350 15 & 41 Tooth Speedo Kit turned my “guessing game” speedometer into a precision instrument. The aluminum housing looks so slick, I half expect it to start talking to me. Installation was smoother than a buttered bald head, and those extra seals? Perfect backup for my “oops” moments. If you want your speedometer parts to behave and impress, this kit’s your new best friend! — Thanks from us
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Why My 700R4 Transmission Speedometer Gear Is Necessary
When I first started working on my vehicle’s 700R4 transmission, I quickly realized how crucial the speedometer gear is. This small component plays a vital role in accurately measuring my vehicle’s speed by translating the transmission’s output shaft rotations into a readable speed on my dashboard. Without this gear, my speedometer simply wouldn’t work, leaving me clueless about how fast I’m driving.
Another reason I value the 700R4 speedometer gear is that it helps maintain proper transmission shifting patterns. The transmission control relies on accurate speed data to decide when to shift gears smoothly. If the speedometer gear is worn or missing, shifting can become erratic or harsh, which affects both my driving comfort and the transmission’s longevity.
Lastly, having a properly functioning speedometer gear is important for safety and legal reasons. I need to know my speed to obey traffic laws and avoid speeding tickets. Plus, many modern vehicles use speed data for other systems like ABS and cruise control. So, replacing or maintaining the 700R4 speedometer gear is essential for keeping my vehicle running safely and efficiently.
My Buying Guides on ‘700R4 Transmission Speedometer Gear’
When I first needed to replace the speedometer gear on my 700R4 transmission, I realized how crucial it was to get the right part for accurate speed readings and smooth vehicle operation. Here’s what I learned from my experience that might help you pick the perfect speedometer gear for your transmission.
Understanding the 700R4 Transmission Speedometer Gear
The 700R4 is a popular 4-speed automatic transmission, and its speedometer gear plays a key role in sending accurate speed data to your vehicle’s speedometer. The gear fits inside the transmission tail housing and engages with the speedometer cable or sensor. Choosing the correct gear ensures your speedometer reads correctly, which is vital for safe driving and vehicle diagnostics.
Compatibility: Match Your Transmission Year and Model
One of the first things I checked was compatibility. The 700R4 transmission was made from the early 1980s to the early 1990s, but variations exist. Speedometer gears can differ based on the transmission’s build year and the vehicle it was installed in. Always verify the year and part number of your transmission before purchasing to avoid fitment issues.
Material and Build Quality
I found that most speedometer gears come in plastic or metal. Plastic gears are common and usually work fine, but metal gears offer better durability, especially if you drive in harsh conditions or want a longer-lasting part. Consider your driving habits and environment when choosing between these materials.
Gear Teeth Count and Size
The gear teeth count directly affects the speedometer reading. Different vehicles and transmissions might use gears with varying tooth counts to calibrate the speedometer correctly. Make sure to get a gear with the proper tooth count as specified by your vehicle’s service manual or trusted sources.
OEM vs. Aftermarket Options
I debated between OEM (Original Equipment Manufacturer) and aftermarket gears. OEM parts guarantee a perfect fit and quality but tend to be pricier. Aftermarket gears can be more affordable and sometimes offer improved materials or designs. However, it’s important to buy from reputable brands to avoid poor quality products that might wear out quickly.
Installation Considerations
Replacing the speedometer gear can be straightforward if you have the right tools and some mechanical knowledge. Some gears come with installation instructions or kits including seals and lubricants. I recommend choosing a gear that includes these extras if you’re doing the job yourself to ensure a proper seal and smooth operation.
Price vs. Performance Balance
While I wanted a quality part, I also had a budget. Prices for 700R4 speedometer gears vary widely, so I compared options based on material, brand reputation, and included accessories. Investing a bit more upfront saved me from future headaches due to premature wear or inaccurate speed readings.
Where to Buy
I found reliable gears through specialized transmission part suppliers, reputable online marketplaces, and local auto parts stores. Checking customer reviews helped me avoid counterfeit or low-quality parts. If you’re unsure, asking a transmission specialist or mechanic for recommendations can be very helpful.
Final Thoughts
Choosing the right 700R4 transmission speedometer gear made a noticeable difference in my vehicle’s speedometer accuracy and overall driving confidence. By focusing on compatibility, material quality, and trustworthy brands, you can find a gear that fits well and lasts long. Don’t rush the purchase—taking time to research will pay off with smoother drives ahead.
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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