1966 Chevelle Muncie Rock Crusher Trans The Numbers Are 3831704

  • Brand New SUPERCASE M22 4-Speed Muncie Rockcrusher Style ...

    This a BRAND NEW SUPERCASE M22 Muncie Rockcrusher Style Transmission. This is a BEEFY version of the original Rock Crusher transmission. Most all the weak points of an original Muncie …

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  • muncie m22 rock crusher for sale | eBay

    4 product ratings - Muncie M-22 Rock Crusher Four Speed Transmission - RARE Drivers Side ... 5.0 out of 5 stars. 11 product ratings - 1969 Muncie 4spd M22 Rockcrusher Close Ratio Trans Camaro Z/28 Nova Chevelle . $2,195.00. Time left 48m left. 0 bids +$229.86 shipping. Watch; 1970 Chevelle SS Ls6 Muncie …

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  • muncie m22 rock crusher for sale | eBay

    4 product ratings - Muncie M-22 Rock Crusher Four Speed Transmission - RARE Drivers Side ... 5.0 out of 5 stars. 11 product ratings - 1969 Muncie 4spd M22 Rockcrusher Close Ratio Trans Camaro Z/28 Nova Chevelle . $2,195.00. Time left 48m left. 0 bids +$229.86 shipping. Watch; 1970 Chevelle SS Ls6 Muncie 4spd M22 Original Gm Rockcrusher Case NOS ...

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  • How to Identify a M22 Rock Crusher | It Still Runs

    An M-22 "Rock Crusher" is a Muncie four-speed transmission for cars made by General Motors in the 1960s. Identify a transmission type correctly before fitting it into your car. If you have the incorrect transmission, your car may not function properly. You can identify several unique signs that …

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  • Chevrolet Chevelle Rock Hill - 288 Chevrolet Chevelle Used ...

    May 28, 2020· 288 Chevrolet Chevelle Cars in Rock Hill from $12,000. Find the best deals for Used Cars in Rock Hill. Smog pump) and likewise matching-numbers muncie m22 “rock crusher” four. 1970 chevelle ss 396 -cranberry red base coat clear coat paint on a rock solid body -black vinyl top that accent the black s

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  • 1966 CHEVROLET CHEVELLE 6.5L 396cid V8 Gear | RockAuto

    Manual trans.; 4 speed trans.; Muncie M20 Wide Ratio Cluster Gear, 2.52 Ratio, Tooth Counts are 25-22-19-17, Fits Transmission Cases With The 7/8 in. Cluster Pin, Case Casting Numbers 3831704, …

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  • Muncie 4 Speeds - Homestead

    The letter M was used to ID the Muncie plant for the Muncie 3 speed, so P was the next logical letter. The letter O would add confusion since it resembles zero. The serial number is a date code the transmission was built for a particular year. Serial numbers from 1963 to 1966 …

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  • 1966 PONTIAC GTO 6.4L 389cid V8 Gear | RockAuto

    Manual trans.; 4 speed trans.; Muncie M20 Wide Ratio Cluster Gear, 2.52 Ratio, Tooth Counts are 25-22-19-17, Fits Transmission Cases With The 7/8 in. Cluster Pin, Case Casting Numbers 3831704, 3839606, 3851325, 3864848, and 3864___ with last three digits milled off

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  • Manual Transmissions ~ The 1966 Chevelle Reference CD

    Muncie 4-speed manual transmission. Note the speedometer cable exit on the passenger side. Because the speedometer cable exited on the passenger side, an extra hole was required in the firewall to accommodate the speedometer cable. P0221 (February 21) date stamping on 1966 Muncie 4-speed transmission.

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  • M22 Identification | Chevelles.com

    May 12, 2005· I recently purchased a 70 Chevelle LS5 with an M22. I have the build sheet but there is no S/N for the Transmission. I have researched several Muncie sites and I am stumped by the Case number on my Transmision. Can you help identify if it is truly an M22. The number reads 3925856(or possibly...

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  • can a muncie m20 4 speed be changed to a m22 rock crusher

    Apr 3, 2001 ... 4- speed transmission has GM markings 3885. ... Late in '63 the Muncie transmission started showing up. ... It was offered that year as well as the M20, M21, and M22 Muncies. ... Should be a positraction if it hasn't been changed. .... If you pull the trans you can tell if it is a rock crusher from the imput shaft. Get Price

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  • 1966 Chevelle Restoration Information | Ground Up, Inc ...

    Transmission availability was directly affected by the chosen rear axle ratio, of which there were many options. By far the most common transmission for 1966 was the Powerglide with nearly 300k units sold, while the heavy-duty M22 “rock crusher” reportedly was only …

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  • Muncie Trans ID Help - Canadian Poncho

    Muncie 4-speed Transmission (Group 4.000) - Casting Numbers Casting: Year(s) Ratio 3831704: 1963 Only:

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  • Muncie 4 Speed - Classifieds - Claz.org

    1968 MUNCIE-ROCK CRUSHER M-22 4 SPEED TRANS 10 SPLINE INPUT. CASE NUMBER 3925660. P8B28 VIN NUMBER 18N396682 ON CASE TAILHOUSING NUMBER. 3857584 SIRE COVER NUMBER 3884684 REBUILT. Local pickup free. REBUILT Shipping not included.. BBC Speed & Machine. 1539 W. Blancke St. Linden, NJ 07036 Show phone number (908) 862-6336

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  • Muncie decoding? | NastyZ28.com

    Nov 23, 2014· I probably didn't make myself clear. As stated, the Camaro didn't use the M22 by 1973, but the Muncie was also used in the Corvette, and likely still in the Chevelle. Also, Pontiac still used it. I don't have production specs for Oldsmobile, so I don't know if they used it by 1973. Check the numbers on a Muncie.

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  • Muncie 4 Speed - Classifieds - Claz.org

    This 1966 Chevelle is powered by a period-correct 396/360hp Corvette engine mated to a period-correct M21 Muncie 4-speed manual transmission sending power through the original 12-bolt posi-traction differential with 3.30 gears.

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  • How to Identify a M22 Rock Crusher | It Still Runs

    An M-22 "Rock Crusher" is a Muncie four-speed transmission for cars made by General Motors in the 1960s. Identify a transmission type correctly before fitting it into your car. If you have the incorrect transmission…

    Get Price
  • How to Identify a Muncie Four Speed - Super Chevy

    Jun 22, 2016· There also was a second, heavy-duty close-ratio version: the “Rock Crusher” (M22) that was offered on some of the high-performance big-block models, starting with the 1965 Corvette.

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  • M21 M22 4 Speed Muncie Manual Transmission - Midwest ...

    Having issues diagnosing problems with your M21 M22 4 Speed Muncie Manual Transmission? we can help. Below you will find a detailed parts list for the M21 & M22 manual transmission that includes complete rebuilt transmissions bearing rebuild kits with and without synchro rings, gaskets and seals, small parts kits, bushings, individual bearings, slider, synchro rings, forks, gears and shafts.

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  • Muncie Id Help | Chevy Nova Forum

    Nov 07, 2009· The M22 transmission has a 20 degree helix angle on the gear set as opposed to a 45 degree angle found on the M20 and M21 and were made with a higher nickel alloy. The straighter angle was designed to produce less end loading of the gear train and less heat but created more noise, thus the nickname "Rock Crusher…

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  • Muncie 4-speed Transmission (Group 4.000)

    All Muncie transmission cases are made of aluminum, and the identifying casting numbers are prominently stamped in the passenger side of the transmission case. Muncie Four Speed casting numbers identify all aluminum Muncie main cases: 3831704 …

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  • Muncie 4 Speeds - Homestead

    The letter M was used to ID the Muncie plant for the Muncie 3 speed, so P was the next logical letter. The letter O would add confusion since it resembles zero. The serial number is a date code the transmission was built for a particular year. Serial numbers from 1963 to 1966 included only the month and day. P0101 would indicate January 1st.

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  • Muncie Parts - The Gear Box

    NEW Muncie M22 SUPER ROCK CRUSHER 4 speed $2399.00. No Price Muncie Master Overhaul Kit. The ultimate Master rebuild kit for Muncie transmissions! Only high quality parts in kit. From $283.00 . Muncie Overhaul Kit. Complete overhaul kit for Muncie 4 speed transmissions. Must specify if your transmission …

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  • Muncie four-speeds | Hemmings

    The 2.20:1 ratio is commonly designated as the Muncie M21 transmission. The 2.56:1 ratio is commonly referred to as the M20. Muncie also had a second close-ratio transmission designated M22 and often referred to as the "rock-crusher," which was used behind the highest-performance engines and in Corvettes, the M22 is a highly sought-after performance transmission.

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  • YEARONE Blog Updates: GM Muncie 4-Speed Decoding

    Dec 09, 2009· M-22 “Rock Crusher” Identification The M-22 close-ratio transmission is easily identified internally from the M-20 and M-21 versions by the angle of the gear teeth. The M-22 was only produced in a close-ratio version, so it will not appear on models with high rear-axle ratios (3.55 or lower numerically) unless someone has changed it.

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  • Muncie 4-speed Transmissions | Hemmings

    All Muncie transmission cases are made of aluminum, and the identifying casting numbers are prominently stamped in the passenger side of the transmission case. Those stamping numbers are: 3831704 - 1963 only 3851325 - 1964-'65 3885010 - 1965-'67 3925660 - 1968-'70 3925661 - 1971-'74

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  • Muncie Trans ID Help - Canadian Poncho

    Aug 27, 2015· 1968 Muncie transmission tag #3924706. Date stamped P8P27 for Muncie, September 27, 1967 and partial VIN of 18K116891. Reported to be M21 but cannot find tag number to verify. 1968 Muncie coded P8S28 for November 28, 1967. 1968 Muncie coded P8S15 for November 15, 1967. Same transmission above with partial VIN stamping.

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  • Muncie 4 Speed Transmissions

    The letter M was used to ID the Muncie plant for the Muncie 3 speed, so P was the next logical letter. The letter O would add confusion since it resembles zero. The serial number is a date code the transmission was built for a particular year. Serial numbers from 1963 to 1966 included only the month and day. P0101 would indicate January 1st.

    Get Price
  • finding a 4 speed muncie rock crusher

    1968 gm muncie m22 4 speed transmission. 1968 gm muncie m22 4 speed transmission - 2,25000 trans is a close ratio, m22 220 first gear, rock crusher, this muncie is tagged as chevys over the counter warranty or optional transmission for 66-68 chevelle, 67-68 camaro, 68 nova, 68 cutlass, 68 fire...

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  • Manual Transmissions ~ The 1966 Chevelle Reference CD

    P0221 (February 21) date stamping on 1966 Muncie 4-speed transmission. Partial VIN stamping from Flint. P7C09 (March 9) date stamping on a 1967 Muncie 4-speed transmission; (1967 was the first year to have the year stamped in the date code and the month represented by a letter code).

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