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·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" was born
Garry Brown on Super Pro Road/Race Muncie Upgraded Ultra Case M22 Rock Crusher SALE EXTENDED Michael wilhelm on Auto Gear Upgraded Ultra Case M22Z Rock Crusher 4 speed Perfect Performance with to Rear End Gears SALE EXTENDED Ricky Fitts on Muncie Super Duty M23 Upgraded Ultra Case 4 speed Road or Drag Racing Rock Crusher
1969 1974 codes include a suffix letter at the end to aid in identification of transmission ratios A = 1st gear wide ratio M20 B= 1st gear close ratio M21 C = first gear Rock Crusher M22 One example code would be P0E21 A which reads Muncie four speed aluminum for passenger car 1970 May 21st ratio M20
·Re How to Identify a Muncie 4 speed 12 24 02 03 14 AM Post# 146391 In response to 57Townsman210 There is a very complete web page about identifying the various Muncies at Click the link for Muncie 4 speeds and you ll find everything you ever wanted to know They also sell good rebuild kits and each kit is specialized for the
·M 22 Rock Crushers have gone up boocoo bucks since Yeah where did that time go Deuces Aug 28 2020 no rebuild But the really great news was that it was actually a M22 Rockcrusher that the guy could have gotten $2k for Payback gods were good Bob Lowry Aug 28 2020 SHARE POST #12 cfmvw Damien Vild 427 sleeper and 2
·To do so it needed an even tougher gearbox than the M21 and while the Grand Sport never made it to Le Mans due to GM politics removing its brands from motorsports competition the Bowtie brand was able to test the Muncie enough to develop a newer version that eventually hit the streets as the M22 The M22 Rock Crusher featured a one inch
·come guys every gearhead knows every muncie is a rock crusher every 327 came out of a corvette and all 12 bolts are posi s I didn t even read this on the internet 70% of the guys at the gas station tells me this when I m gassing up they all had that rare 68 chevy with a corvette 327 rock crusher muncie and a 12 bolt posi that they would shift from first to
·An M22 gearbox has a 20 degree helix angle on the gearset as opposed to a 45 degree angle Also M22 gear sets were of a higher nickel alloy The original post said "without pulling it from the vehicle" Thus the request for any/all numbers on the trans to Help identify it After 35 yrs anything could have happened to these tranys
·Rock Crusher at best is a 38 year old transmission Don t know what you plan on doing with it but the T 10 will be stronger It will not be a direct bolt in to the best of my knowledge The stock t 10 s had different shifters and linkage but you could probably use the same shifter but get a new mounting plate and linkage for the t 10
Muncie Rock Crusher Hotrunnersolutions Ingm muncie m rock crusher identification the m close ratio transmission is easily identified internally from the m and m versions by the angle of the gear m22 rock crusher identification Mar 05 2011 An M 22 Rock Crusher is a Muncie four speed transmission for cars made by General Motors in
·M22 Wide vs M22 "Rock Crusher" Jump to Latest 21 38 of 38 Posts 1 2 H Hi po SS 454 The M22W set manufactured by Autogear was designed to be a better alternative to the M22 since most do not like the 1st gear ratio of the M22 It also has a better ratio spread then a conventional M20 It maintains the M22 gear helix angles
Muncie 4 Spd Car M22 Close Ratio Gear Kit This M22 Gear kit will have a 1 Countershaft pin 16 Spline input Close Ratio 1st gear The kit will include the Input shaft 4th gear Countershaft 1st gear 2nd gear 3rd gear and Reverse Idler Input 26 Tooth 26 Spline Close Ratio Counter Shaft R27 22 19 17 Big 1" Pin Close Ratio 1st Gear 36 Tooth 2nd Gear 30
·The naysayers are saying "nay" again here Now that my TKO 600 is all installed and functioning flawlessly people are telling me I should have installed a Muncie M22 in my car instead of a TKO 600 I just finished the project and already I have received this criticism from like 4 different gearheads They say the old Muncie is bulletproof and can take anything
An M22 retains less heat due to the straight cut gear design and the lack of thrust that helical cut gears create An M 22 holds up well The downside is that it tends to make noise It will rattle at low rpms and whine at higher rpms The M22 is called the Rock Crusher Dump the Rock Crusher hot rodders say
3 ·The M22 was eventually dubbed the Rock Crusher It is a common misconception that all Muncie transmissions are Rock Crushers but it is only the M22 that deserves that name The M20 and M21 were both release in 1963 but it wasn t until 1965 that the M22 hit the market The M22 was created for the Corvette Grand Sport racing program
Where Our Customers Send Their Friends Chevy Transmissions Muncie M22 Rock Crusher 4 Speeds were made From 1965 TO 1974 The most popular transmission of it s time for high performance cars built for Chevrolet and all performance oriented have the same gear ratios as the legendary M21 but with a heavy duty gearset
·I have a 1970 m22 close ratio 4 speed from a 1970 ls6 I owned back I the 80s Here is the info Spending" 3000$ on a bolt on period correct grin inducing almighty and mythical transmission that is the great Muncie M22 Rock Crusher makes more sense for many compared to buying a retrofit kitted TKX for 5 000$
·True enough the M22 did trickle out the door in 1965 67 and was buried in the option lists It was around 1968 that easy to find the M22 on option lists but the significant extra cost was a way to dissuade all but the most serious of gearheads Drain plugs came to the M22 first as did the fine splines
·How to Identify Muncie 4 Speed Transmissions Identifying Muncie 4 Speeds III by Paul Cangialosi The most popular question has to be that everyone thinks they have the famous "rockcrusher" M22 4 speed This had the same gear ratios as the M21 but with a heavy duty gearset Top countergear is an M22 Lower gear is an M20 Notice the
·Identifying Muncie 4 Speeds 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 and if any rings or grooves exist around the input shaft splines Third are date codes and VIN numbers that help confirm that the above case and gears belong together
John DiLauro on Auto Gear Upgraded Ultra Case M22Z Rock Crusher 4 speed Perfect Performance with to Rear End Gears SALE EXTENDED Garry Brown on Super Pro Road/Race Muncie Upgraded Ultra Case M22 Rock Crusher SALE EXTENDED Michael wilhelm on Auto Gear Upgraded Ultra Case M22Z Rock Crusher 4 speed Perfect
·L30 s36T except M22 3831746 WT297 21 L30 s36T M22 Rock Crusher 3879999 WT297 21A A17 Mainshaft 3rd Gear L27 s36T except M22 3831747 WT297 11 L27 s36T M22 Rock Crusher 3880845 WT297 11A A18 Mainshaft 3rd/4th Synchronizer Assy synchro rings w/o support shoulder 1963 65 3887887 3887887
3 Muncie 4 speeds were offered 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" The M 22 was generally installed behind severely powerful high torque big block engines The M 22 is distinguished from an M 21 by the angle of the gear teeth The M 22 has "straight cut" gears
·I believe all first gen Z/28s were available with only the close ratio Muncies This would be the M21 which most had and the M22 which very few had You re right about the guy being way off Guys always say they ve got a rock crusher when they are refering to any Muncie there are big differences as we know The M20 is a great trans though
