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  • Camaro - Transmission - Camaro Research Group

    Information on transmission codes and VIN stamps is located on the drivetrain decoding page , The transmission model number comes from the nominal torque rating, 350 lb-ft of torque , The Camaro 4-speed manual transmissions ratios for both Muncie and , C = 220:1 HD Close Ratio (M22), aka "Rockcrusher"

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  • M20, 21, or Rock Crusher - Chevelle Tech

    My question is, which Muncie would be the best all around four speed? And if not , M20, 21, or Rock Crusher,,how about a Jericho?

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  • Muncie Transmission Id and ratio guide - D and L Transmissions

    Muncie Transmission information , Muncie Transmission ID and Ratio Guide , All 67-74 Muncies carry a producion code number stamped vertically on right.

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  • 1972 Pontiac Firebird Trans Am

    , this had a new casting number of 7F6 and was only used in 1972 and had special , to a pair of transmissions, the infamous "M22 Rock Crusher" Muncie 4-speed , Exterior Colors, Code, Interior Colors, Std Trim, Code, Custom Trim, Code

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  • FAQ

    Several things are needed to identify a Muncie correctly , The serial number is a date code showing that the transmission was built for a particular year

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  • Miscellaneous Manual Transmission Components - Camaro Central

    PART NUMBER: TRA-625 Our Price: $3,27995 Sale Price: $3,17995 Add To Cart 1967 - 1968 Muncie Transmission 4 speed, Rebuilt Original GM , 1967-1968 Muncie M-22 Transmission Rockcrusher , Coupon Code: TURKEY16

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  • Can anyone help with GS 3-Speed Manual trans casting #`s? [Archive ,

    The trans, if you got a 4 speed was a Muncie , If you wanted a heavy duty 4 speed you got the M22 Muncie rock crusher , I believe the order code for the Toploader 3 Speed Manual was M13 with the following ratio's 242:1 161:1 , If GM made their own tailshafts, I guess it would have a GM number

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  • Muncie 4-Speed Identification Guide - Chevy DIY

    This 1967 Corvette has a build sheet with an RPO code for an M21 , The main case casting number was used for either a specific year or series of years

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  • Muncie four-speeds - What to look for: hunting down G | Hemmings ,

    The Muncie four-speeds are a very popular transmission with Chevrolet , For example, an extension housing casting number of 3857584 indicates the tail shaft , the "rock-crusher," which was used behind the highest-performance engines and , shift ratio and unit designation as a single letter on the end of the build code:

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  • GTO Transmissions - Andy's Auto Sport

    I covered Source Serial Number Code and Model Identification Code but not Production , Muncie 4 Speed: A=252:1 Wide Range , C=22:1 Rock Crusher

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  • Muncie 4 Speed Transmissions - 5 Speed

    How to Identify Muncie 4 Speed Transmissions , The first is a main case casting number , designed to produce less end loading of the gear train and less heat but created more noise, thus the nickname "rockcrusher" , Month Code Chart

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  • Muncie: Parts & Accessories | eBay

    Muncie M-22 Rock Crusher Four Speed Transmission - New Gears - Show Car Quality $1,69500 , 70-72 Muncie M-22 ROCKCRUSHER Rebuilt No VIN, Date Code $2,50000 , Number of bids and bid amounts may be slightly out of date

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  • Switch to Summary View - Corvettes for Sale - Used Corvette ,

    , matching date codes E2170 G870 with 74cc chambers and 202/160 valves , (number-matching original documented Muncie-22 Rock Crusher) Rear-end.

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  • Chevrolet Chevy Manual Transmission Identification and Decoding

    20 Oct 2011 , Muncie (left) Saginaw (center) Borg Warner (right) , The M-20 wide ratio, the M-21 close ratio, and the "Extra heavy duty close ratio" M-22, also known as the "Rock Crusher" , added to the plant prefix number to help identify the gear ratios in Muncie transmissions The additional letter codes as follows:.

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  • Got Transmissions - Used Transmissions Online Got Transmissions

    The success of the Muncie transmissions were a big part of promoting better , The original Rock Crusher gearbox was a manual controlled box , It will take a model number, RPO code or other identifier in order to review discount pricing

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  • Scottsdale 2012 - Collector Cars Docket - Jan 20, 2012

    20 Jan 2012 , , 4-speed Muncie M22 Rock Crusher transmission out of a Camaro, custom paint, , All original, matching number 928S with 28,000 original mil , An ultra-rare X22 Code, SS396cid with the unique Daytona Yellow code.

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