MUNCIE 3915090 Close M21 L79

( Brand: Muncie ), ( Manufacturer Part Number: 3915090 ), ( Type: Manual Transmission ), ( Manufacturer Warranty: 1 Year ), ( Speedometer Type: Mechanical ), ( Housing Material: Aluminum ), ( Oe/oem Part Number: M21 ), ( Vintage Part: Yes ), ( California Prop 65 Warning: Warning, Nickel And Chromium Which Are Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm. For More Information Go To Www.p65warnings.ca.gov )

Review MUNCIE M21 Close Ratio Speed L79 fits CORVETTE 1968

Muncie M21 4-Speed Close Ratio Transmission for 1968 Chevrolet Corvette L79 327 Cubic Inch V8 Engine

The Muncie M21 4-Speed Close Ratio Transmission is an iconic and high-performance transmission solution designed specifically for the 1968 Chevrolet Corvette L79 with the 327 cubic inch V8 engine. This transmission is a must-have for Corvette enthusiasts and classic car restoration projects, offering improved acceleration and gear ratios for enhanced driving experience.

The Muncie M21 transmission is a close-ratio version, meaning it has shorter gearing between the various forward gears. This gearing configuration allows for quicker acceleration and smoother power delivery, making it an ideal choice for performance applications. The transmission also features synchronizers on all forward gears, ensuring smooth and synchronized shifts.

This transmission is a direct replacement for the original unit found in 1968 Corvettes, making it a straightforward swap for those seeking to restore or upgrade their vehicles. It is manufactured using original Muncie specifications and undergoes a rigorous rebuilding process to ensure the highest quality and reliability.

- Close-ratio gear set for improved acceleration

- Synchronizers on all forward gears for smooth shifts

- Designed for use with 1968 Chevrolet Corvette L79 327 cubic inch V8 engines

- Direct replacement for original transmission

- Rebuild using original Muncie specifications

- Enhanced driving experience for Corvette enthusiasts and classic car restoration projects.

Investing in a Muncie M21 4-Speed Close Ratio Transmission not only guarantees improved performance but also adds authenticity and value to your classic Chevrolet Corvette. It is a perfect blend of style, performance, and reliability, making it an essential component for any serious Corvette enthusiast.

The 1968 Chevrolet Corvette with the Muncie M21 4-speed close ratio transmission and L79 327 cubic inch engine is a desirable collectible vehicle for many classic car enthusiasts. Here are some pros and cons to consider before making a purchase.

1. Performance: The L79 engine is a high-performance version of the small-block Chevrolet V8, producing 300 horsepower and 360 lb-ft of torque. The close-ratio M21 transmission enhances power delivery and responsiveness.

2. Rarity: The combination of the L79 engine and M21 transmission is not common, making this Corvette a desirable find for collectors.

3. Handling: The 1968 Corvette's independent front suspension and solid rear axle provide excellent handling characteristics, making it a fun car to drive.

4. Investment potential: The value of collectible Corvettes has been increasing over the past few years, making this a potential investment opportunity.

1. Maintenance: The close-ratio M21 transmission requires more frequent and meticulous maintenance than automatic transmissions.

2. Complexity: The manual transmission and high-performance engine make this Corvette more complex to operate and maintain than a standard model.

3. Cost: The collectible value of this Corvette can result in a higher purchase price compared to a standard model.

4. Usability: Due to its collectible status and potential investment value, some buyers may be hesitant to use the car regularly, limiting its enjoyment potential.

The 1968 Chevrolet Corvette with the Muncie M21 close-ratio transmission and L79 engine is an exciting collectible car with excellent performance, rarity, and investment potential. However, it also comes with additional maintenance requirements, complexity, and cost. Ultimately, the decision to buy this Corvette depends on the buyer's budget, skill level, and intended use. For those who are passionate about classic cars, have the necessary resources, and are looking for a high-performance collectible, this Corvette could be an excellent addition to their collection. For others, a standard Corvette or a more user-friendly collectible may be a better fit.

Details:

Its a solid trans. Its tight, shifts good, holds the gears. 1968 Corvette Muncie M21 close ratio 4 speed transmission.

part #: 3915090 prices

• $69.00-$95.00

specifications complmanu:

• for models: Corvette
• for years: 1968
• brand: Muncie
• mpn: 3915090
• type: Manual Transmission
• manufacturer warranty: 1 Year
• speedometer type: Mechanical
• housing material: Aluminum
• oe/oem part number: M21
• vintage part: Yes
• california prop 65 warning: Warning, Nickel And Chromium Which Are Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm. For More Information Go To Www.p65warnings.ca.gov

shipping complmanu:

• cost: $250.00
• class: Freight
• service: Flat Rate Freight
• type: Fixed

offer complmanu:

• quantity: 1
• options: Ship-to-home
• availability: In Stock
• started: December 17, 2025
• best offers: True
• sold: 0

payments complmanu:

• wallet: Paypal
• other
• money order
• credit card: Visa

general complmanu:

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

seller complmanu:

• city: Destrehan, Louisiana
• # reviews: 952
• rating: 100.0%

returns complmanu:

• policy: Returns Accepted
• time: 14 Days
• paid by: Buyer

Muncie 3915090 Is Similar To:

• 1111111 Muncie Speed (31.6% 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 (34.9% similar) Fits chevaliers, novas, got plus more. Deposit of 100...(June 26th, 2017)
• 3839606 Gm Muncie 9606 4 Speed (39.5% 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 (35.4% 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 (35.7% 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)
• 5925661 Muncie Speed Transmission Wide Ratio With Clutch And Bellhousing (34.4% 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)
• M-20 2 52 Ratio Muncie 4 Speed Trans M-20 (41.2% 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)
• M21 M-21 Muncie Speed Close Ratio Transmission Original Mint (41.4% similar) ...(March 17th, 2019)
• M319 Muncie 319 3 Speed (43% similar) I have another one of these transmissions that can be cannibalized for parts if you only need an item or two. I will also deliver to your shipper within a reasonable distance for fee. Offered for sale is a used 3 speed Chevy transmission that would have been in 1955 to 58...(August 6th, 2017)
• 3851325 Muncie M-22 Rock Crusher Four Speed Transmission New Gears Show Car Quality 3884685 (27.2% similar) New french lock retainers. New auto gear iron mid plate. Some are even depicting Saginaw's M22 mystery Muncie first gear noise eliminated. 28 1, 4TH direct, reverse I am one of the few re manufacturers including an auto gear iron mid plate replacing the factory aluminum plate. Fill and magnet drain ...(July 4th, 2016)
• 66-67 3885010 Muncie M-22 Rock Crusher Four Speed Transmission New Gears 3884685 (29.4% similar) New USA manufactured auto gear shift forks. New bearing retainer. New rear gear counter shaft shims. New speedo bullet. New front reverse idler gear. This transmission is a direct replacement for a Borg Warner T10, Saginaw, m 20 or m 21 with no other changes necessary to swap into your vehicle. Do ...(October 24th, 2016)