MUNCIE 1234762KA Manual Transmission Close M21

( Brand: Muncie ), ( Manufacturer Part Number: 1234762KA ), ( Type: Manual Transmission ), ( Oe/oem Part Number: 3857584 3915020, 3925661 ), ( Housing Material: Aluminum ), ( Vintage Part: Yes ), ( Country Of Origin: United States )

Review MUNCIE M21 Speed Manual Shift Transmission Chevy Close Ratio fits 1970

Introducing the Muncie M21 4-Speed Manual Transmission - a legendary component of the classic Chevrolet scene, specifically designed for the 1970 models. This transmission, bearing the model number 1234762, is a must-have for enthusiasts and collectors who yearn for the authentic feel and durability of the past.

The Muncie M21 transmission boasts a robust, heavy-duty design, built to handle the power and torque of high-performance engines. Its four forward gears provide optimal control and versatility, allowing drivers to experience a thrilling driving experience. With synchromesh on all forward gears, shifting is smooth and effortless, ensuring a pleasant and efficient driving experience.

Constructed of high-quality materials, this transmission is built to last. Its cast iron housing and steel gears are designed for durability and reliability, capable of withstanding the rigors of regular use. The precision-machined gears and synchronizers provide accurate and consistent shifting, while the triple-cone clutch system ensures a positive engagement and smooth operation.

The Muncie M21 transmission also features an easily accessible bellhousing, making it simple to install and maintain. Its standard bolt pattern and dimensions make it compatible with a wide range of engines and drivetrains, adding to its versatility. Additionally, the transmission comes with a shifter and shift rod, making it a complete solution for those looking to upgrade their classic Chevy's powertrain.

In conclusion, the Muncie M21 1234762 transmission is more than just a component - it's a piece of automotive history. With its robust design, smooth shifting, and versatility, it's the perfect addition for any enthusiast or collector looking to restore or upgrade their 1970 Chevrolet. Whether you're cruising down the highway or tackling twisty backroads, this transmission is sure to deliver an unforgettable driving experience.

Buying a used 1970 Chevrolet with a Muncie M21 4-speed manual transmission (specific model number 1234762) can be an exciting venture for classic car enthusiasts. Here are some potential pros and cons to consider before making a purchase:

1. Authenticity: This classic Chevrolet model and its manual transmission are highly sought after by collectors and enthusiasts, which can add to its value and charm.

2. Control: Manual transmissions offer drivers more control over their vehicle's performance, especially during acceleration and shifting gears.

3. Repairability: Older vehicles like this one can be more affordable to repair since parts are readily available and often less expensive than for newer models.

4. Customizability: Manual transmissions allow for easier engine swaps and other customizations, making this car a great base for a restoration project.

1. Maintenance: Manual transmissions require more frequent maintenance than automatic transmissions, including regular oil changes and synchro checks.

2. Learning curve: If you're not already familiar with manual transmissions, there may be a learning curve to mastering the shifting technique, especially with an older model like this one.

3. Rarity: Finding a well-maintained, original example of a 1970 Chevrolet with a Muncie M21 transmission in good condition can be challenging and expensive.

4. Comfort: Manual transmissions don't offer the same level of comfort and ease as modern automatic transmissions, especially during long drives.

In conclusion, buying a used 1970 Chevrolet with a Muncie M21 manual transmission (model number 1234762) can be a rewarding experience for classic car enthusiasts. However, it's essential to consider the additional maintenance requirements, learning curve, and rarity of the vehicle before making a purchase. If you're passionate about classic cars and enjoy the hands-on experience of driving a manual transmission, this could be an excellent investment for you. If not, you might want to consider a more modern vehicle or an automatic transmission version of this classic Chevrolet. Ultimately, thorough research and careful consideration are key to making an informed decision.

If you decide to pursue this purchase, we recommend conducting a thorough inspection of the vehicle, including the transmission, and gathering as much information as possible about its history and maintenance records. Additionally, consider seeking advice from a trusted mechanic or classic car enthusiast to ensure that you're making a sound investment. Finally, be prepared for the additional costs and responsibilities that come with owning and maintaining a classic car with a manual transmission.

Details:

The shift cover has some where and rub marks. I have not tested this Transmission do see any damage to gears or the housing. Sold as is seen in pictures. Very hard to find transmission.

Please look closely at the pictures as they play a large roll in this items. The inside looks to be in very good used condition.

part #: 1234762ka prices

• $945.00-$2050.00

specifications complmanu:

• for makes: Chevy
• for years: 1970
• brand: Muncie
• mpn: 1234762ka
• type: Manual Transmission
• oe/oem part number: 3857584 3915020, 3925661
• housing material: Aluminum
• vintage part: Yes
• country of origin: United States

shipping complmanu:

• type: Fixed
• class: Standard
• transit: 16-25 Days
• cost: $299.00
• service: Standard

general complmanu:

• condition: Used
• Car Truck Parts Accessories > Transmission Drivetrain > Manual Transmission

payments complmanu:

• other
• credit card: Diners-club
• wallet: Google-pay

offer complmanu:

• started: December 13, 2025
• best offers: True
• sold: 0
• availability: In Stock
• quantity: 1
• options: Ship-to-home

seller complmanu:

• city: Edgemont, South Dakota
• rating: 100.0%
• # reviews: 9996

returns complmanu:

• policy: No Returns

Muncie 1234762KA Is Similar To:

• 1111111 Muncie Speed (24.7% similar) All the casting number and tags are in pictures. Ready to be installed any questions call thanks. I am selling 1969 Chevrolet big block Muncie...(July 4th, 2018)
• 3088336 Muncie 4 Speed Rebuilt (31.8% similar) Fits chevaliers, novas, got plus more. Deposit of 100...(June 26th, 2017)
• 3831707 Gm Muncie Transmission Side Cover Bare (37.4% similar) ...(February 28th, 2019)
• 3839606 Gm Muncie 9606 4 Speed (31.8% similar) We inspect all parts and replace anything needed. The gears in this transmission are like brand new. They came in 2 versions close ratio and wide both sold under M20. Selling to the lower 48 only. This is not a 100 correct transmission but with few things it can be...(December 27th, 2016)
• 3915085 Muncie Nos Gm Speed Transmission (46.2% similar) Gear ratios are 1ST-2. 20:1, 2ND-1. If you are outside that region, call or message me and I will get a quote. Here is a brand new in the box 1968 M-21 close ratio transmission. 350HP, 427 390HP, 400HP, and 435HP Camry z 290HP, 396 375HP Chevalier 327 325HP, 350HP 375HP, chevy ii passenger cars ...(August 1st, 2018)
• 3925660-3088336 Muncie Speed Trans Transmission Close Ratio Gear With Willys Tranfer (49.7% similar) Sell it all as is. Muncie transmission M22 close ratio 20 1ST gear with Willy's transfer case advance jeep adapter, Hurst shiftier. May need rebuilt. The transmission looks good. I got this at and estate sale so not sure what it may need. The transfer case need shiftier welded...(August 23rd, 2018)
• 3952648 Gm Muncie Transmission Side Cover Bare (37.4% similar) ...(February 28th, 2019)
• 5925661 Muncie Speed Transmission Wide Ratio With Clutch And Bellhousing (44.3% similar) See below for shipping details. Local pick-up is free. Clutch is unknown brand but appears near new. I will consider all offers for the part. Shipping: shipping for this item is has normal wear and comes as shown. Please look at all of the pictures to make sure you are happy with what purchasing. ...(December 4th, 2018)
• 9780800 Muncie 4spd Transmission-64-65 Wide (41.7% similar) Here are the numbers: id tag, indicates oem 1964 corvette or Chevalier possibly several other model's inspection cover casting, tail case k stamping on main top rear lip, next. Believe: model, k. Maybe division or model , vin. We noticed when pulled: 2 bolts that secure the input shaft retainer ...(July 9th, 2017)
• Gm 465452 Muncie Spd Transmission With (43.5% similar) Rebuilt Muncie 4 speed transmission w 4X4 and high low this was in has never been installed or used since redone...(June 13th, 2018)
• M-20 2 52 Ratio Muncie 4 Speed Trans M-20 (35.6% similar) I have been building these transmissions full time since 1980 and several credits to my resume. I have business account with my shippers which gives me a break on shipping cost. Also to help with the smooth shifting I use surface enhancement on shift cams that ride in aluminum bores. I ...(February 28th, 2017)