how can i identify a rock crusher transmission

Muncie four-speeds - What to look for: hunting down G - 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.how can i identify a rock crusher transmission,Muncie 4-Speed Identification Guide - Chevy DIYIt was much easier to stockpile Muncie spare parts and cores in the 1970s than it is today. Reliable sources to validate information regarding serial and casting numbers will get scarcer as time passes. The specialty rebuilders that have seen hundreds, if not thousands, of these transmissions can be considered a reliable.

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How To Identify Chevy 4 Speed TransmissionsJul 30, 2015 . How To Remove Install Muncie 4 Speed Transmission GTO Chevelle Skylark 442 Part 1 1AAuto - Duration: 12:25. 1A Auto Parts 56,689 views · 12:25. What Kind Of Transmission Do I Have - Good Question - Duration: 3:13. Michael Prevatt 5,264 views · 3:13 · How to rebuild a Muncie 4 Speed - Tip #4.how can i identify a rock crusher transmission,4 speed transmission ID question. - CorvetteForum - Chevrolet .Mar 24, 2012 . Thats' not a true statement on the filler/drain plugs at all. Very few M22 "rock crusher" gear sets actually made it into muncie transmissions. The only difference between the M20,M21 &M22 Muncie's with the exception of case/gear re designs over the yrs, was the gear sets. M20 being a wide ratio gear set,.

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Identifying Muncie 4-Speeds - My 1967 Chevelle SS 396

Muncie ID. Several things are needed to identify a Muncie correctly. The first is a main case casting number. Second a count of the input shaft and output shaft splines . The straighter angle was designed to produce less end loading of the gear train and less heat but created more noise, thus the nickname "rockcrusher".

How to Identify a Muncie Four Speed: Build Date Codes, VINs, and .

Jul 29, 2016 . Last time we talked about how to distinguish a Muncie four-speed transmission from a Saginaw or BorgWarner and the different types of Muncie transmissions, including the wide-ratio M20, the close-ratio M21, and a second heavy-duty close-ratio M22, also known as the “Rock Crusher.” We also discussed.

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. The choice of transmission usually was determined by the engine size and rear axle ratio. An axle ratio of 3.73 and higher.

Identify General Motors' Four-Speed Transmissions - Chevy Hardcore

Jun 13, 2017 . The M22 Rock Crusher used a gearset that features less of an angled-tooth gearing (right). Images courtesy chevelles. The ratio of the four-speed transmission placed in any car was usually determined by the engine size and rearend axle ratio. If a car came with an axle ratio of 3.73 (or numerically.

Muncie 4-Speed Identification Guide - Chevy DIY

It was much easier to stockpile Muncie spare parts and cores in the 1970s than it is today. Reliable sources to validate information regarding serial and casting numbers will get scarcer as time passes. The specialty rebuilders that have seen hundreds, if not thousands, of these transmissions can be considered a reliable.

How To Identify Chevy 4 Speed Transmissions

Jul 30, 2015 . How To Remove Install Muncie 4 Speed Transmission GTO Chevelle Skylark 442 Part 1 1AAuto - Duration: 12:25. 1A Auto Parts 56,850 views · 12:25. What Kind Of Transmission Do I Have - Good Question - Duration: 3:13. Michael Prevatt 5,264 views · 3:13 · How to rebuild a Muncie 4 Speed - Tip #4.

Identifying Muncie 4-Speeds - My 1967 Chevelle SS 396

Muncie ID. Several things are needed to identify a Muncie correctly. The first is a main case casting number. Second a count of the input shaft and output shaft splines . The straighter angle was designed to produce less end loading of the gear train and less heat but created more noise, thus the nickname "rockcrusher".

Muncie 4-speed - ChevelleStuff

Decoding Chevrolet VIN, trim tags, cowl tags, engine, engine block casting numbers, cylinder head casting numbers, intake manifold casting numbers, transmission, interior codes, and paint codes.

Mucncie 4 Speed Identification Page---National Nova Association

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.

1968 - 1982 Corvette Transmission Identification Codes .

Suffix codes added to build date codes of Muncie transmissions for identification purposes effective October 21, 1968. Note: The nomenclature "rock crusher" was actually used by Chevrolet. ** High Shift Point Transmission.

FAQ

How do I identify a Muncie transmission? How do I tell the . M-21, and M-22? How do I identify a General Motors Borg-Warner T-10 vs. a Super T-10? . The straighter angle was designed to produce less end loading of the gear train and less heat but created more noise, thus the nickname "rockcrusher". The higher nickel.

Magical Muncie Four-Speed | Hotrod Hotline

David W. West of Davids 4 Speeds LLC is a specialist who rebuilds “Big 3” four-speed transmissions and who can help you identify what you've got. About 95 percent of . The M22 is called the Rock Crusher. “Dump the Rock Crusher,” hot rodders say. People think all Muncie four-speeds are Rock Crushers, but they're not.

Synchromesh and Muncie 4-Speed Transmission

The Magical Muncie 4-Speed Transmission. . David W. West of Davids 4 Speeds LLC is a specialist who rebuilds "Big 3" four-speed transmissions and who can help you identify what you've got. About 95 percent of West's work . People think all Muncie four-speeds are Rock Crushers, but they're not. The M20 and M21.

Mastering GTO Restorations: Transmission Guide - Pontiac DIY

Apr 17, 2015 . The regular productions codes identify an M-20, M-21, and M-22. Of the regular production codes, one particular Muncie 4-speed type appears. A properly set up M-22 Rock Crusher transmits up to 700 hp, so this stout transmission is a wise choice for high-performance applications as well as authenticity.

what is a rock crusher transmission? | Yahoo Answers

The Rock crusher was the M-22 Muncie close ratio 4 speed transmission favored in the '60's GM hot rods.Well balanced, smooth shifting and after .. Proper identification of the transmission type is absolutely necessary, but sometimes difficult due to several factors. First, GM used several different methods.

So you've decided to slam four with a GM Muncie Transmission

Feb 16, 2018 . Saginaw transmissions were cheaper, and worked admirably, but scattering gear oil on the pavement was a scary reality if you pushed them too hard. . It's nickname is the “rock crusher” due to the noise generated by the gearset. . This is one way you can ID a Muncie- count the rings on the input shaft.

The Top 10 Off-Road Transmissions of ALL Time - 4x4Review Off .

Nov 4, 2012 . “I can't believe you left the Muncie RockCrusher off of the list”, or “You guys suck, what about the PowerGlide?!”. But that's ok – we like getting these letters, .. Multiple versions of this transmission make it difficult to identify the submodels (Jeep released 12 versions of this alone). There were also significant.

1967 Chevrolet Corvette C2 Production Statistics and Facts

The 1967 Chevrolet Corvette Stingray was the last mid-year model, next year will introduce us to the shark. It is also the cleanest with most of the trim removed including the badging on the hood and the flags on the fenders. New 5 slot functional vents on the side fenders and a fixed 31" radio antenna were also new.

muncie spline count | Grumpys Performance Garage

Jun 3, 2015 . You cannot compare a 40-50 year old M22 Rockcrusher 2.20:1 to the TKO, the original M22 is antiquated for comparison. There are newer AutoGear .. are made of aluminum. These five casting numbers, stamped prominently in the passenger side of the transmission case, identify all Muncie four-speeds:.

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