The M20 and M21 have the same cut to the gears, the M22 is a straighter cut resulting in a greater strength. Since the M20 and M21 look the same one way to tell them apart (aside from the grooves on the input shaft) is the tooth count on the cluster gear. There are 7 different input shaft possibilities on a Muncie.
I've installed them both.And In my opinion the M-22 is way better.The M-21 was close ratio but I've broken quite a few more of those,Than a M-22.The M-21 was good enough for a street driven cars,And racing.But the M-22 was far superior to it.I've only broke a M-22 twice.And I broke a M-21 more than 8 times. M22 is superior, but at the expense ...
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New Super Heavy Duty Direct Replacement and Strongest M22's Made With Muncie Auto Gear Upgraded Ultra Case and Strongest M22 Close Ratio or Wide Ratio Gears. 10 OR …
Muncie Parts > NEW Muncie M22 SUPER ROCK CRUSHER 4 speed $2899.00. NEW Muncie M22 SUPER ROCK CRUSHER 4 speed $2899.00. View Images. Price: No Price: Sale Price: No Price: Availability: in stock Prod. Code: AGM22: CURRENTLY UNAVAILABLE UNTIL SPRING-TAKING ORDERS. $2899.00 PLUS S/H + ASSEMBLY …
Muncie M22 Rock Crusher Input 10 Spline $ 178.00 – $ 185.00 Select options; Muncie 4 Speed Rebuild Kit 7/8″ w/207 Bearing $ 159.00 Add to cart; Muncie M20/M21/M22 Rear Reverse Idler Gear $ 59.00 Add to cart; Muncie M20 Wide Ratio Input 10 Spline $ 145.00 – $ 179.00 Select options
This iconic transmission is based upon the infamous "ROCK CRUSHER" Transmission made famous in the 60`S AND 70`S by being installed in the L-88`S, BIG BLOCK 425 HP Factory Muscle Cars and HOT RODS of the past. ... MUNCIE M22 ROCK CRUSHER $ 0.00 COST $ 1,895.00 WITH DRIVERS SIDE SPEEDO AND $1,995 WITH PASSENGER …
For drag racing, the wide ratio was often the better choice, utilizing either a 2.56 or 2.52 first-gear ratio. In contrast, close-ratio transmissions (which use a 2.20:1 first-gearing) reduce the ...
The first time I heard the term "rock crusher" was in reference to the transmission in the 1967 L88 Corvette. Due to the low gear angle there is a fair amount of gear noise, really like a medium / heavy duty truck transmission. True enough the M22 did trickle out the door in 1965-67 and was buried in the option lists.
The M-22 gear teeth are cut at a noticeably lower angle (not quite at a straight angle as some people say). This lower angle of the teeth imparts greater strength to the gears, but it also increases the noise caused by the meshing of the gears. This higher level of noise is where the nickname "Rock crusher" originated.
Michael Coons on NEW Auto Gear Upgraded Ultra Case Muncie HD M22 4-Speed Rock-Crusher Street/Strip. Camaro, Corvette, Chevelle, Nova. FALL SALE!!! Brett Henson on Auto Gear Upgraded Ultra Case M22Z Rock Crusher 4-speed. Perfect Performance with 2.73 to 3.42 Rear End Gears. FALL SALE!!! John DiLauro on Auto Gear Upgraded Ultra …
#1 · Apr 24, 2022 The other day I was talking to my neighbor who owns a restoration/performance shop. He mentioned he had a M22 rock crusher in his car, and …
Garry Brown on Super Pro Road/Drag Race Muncie Upgraded Ultra Case M22 Rock-Crusher. FALL SALE; Michael wilhelm on Auto Gear Upgraded Ultra Case M22Z Rock Crusher 4-speed. Perfect Performance with 2.73 …
eBay Product ID (ePID) 9012940859. Show More. Show Less. More items related to this product. ... item 3 1964-1966 Ponitac Full Size Muncie M22 Rock Crusher 4 Speed Transmission 2.20 1964-1966 Ponitac Full Size Muncie M22 Rock Crusher 4 Speed Transmission 2.20. $2,200.00 +$150.00 shipping.
L36-s36T: except M22 (1964-74) 3849388 WT297-12A L36-s36T: M22 'Rock Crusher' (1964-74) 3924796 WT297-12B NOTE: these TWO (2) gears w/o snapring counterbore on cone end: used w/o thrust washer. A13 Mainshaft 1st Gear Bushing all (1964-74) 3978781 3978781 A14 Mainshaft 1st/2nd Synchronizer Snapring all (1963) 3832626 3832626
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 …
Similar Products - Complmanu: $279.99 to $2400.00 (5 offers) - Buy 3925660 Muncie Crusher Transmission Gears 3950306 . For Models: M-22 . For Years: 1969-2022 . Brand: Muncie.
Various gear manufactures make replacement gear sets for M22's that will fit in any case with a 1" countershaft. The replacement gear sets do not have identifying rings on the input shaft to tell the ratio. Again, the only tried and true way to tell if it's an M22 is to pull the side cover and look at the gear angle. Vince
Countershaft Identification: Type: Number of Gear Teeth (1st/2nd/3rd/4th) Early M20: 29/22/19/17: M20: 25/22/19/17: M21: 27/22/19/17: M22 Rock Crusher: …
#1 · May 9, 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 …
Catman, First of all, let me give you an example of a stamped date code on a Muncie . P9C10 C. P=Muncie (how the heck they get Muncie from a P I don't know) 9=1969 C=month, Mar 10=day of month C=M-22 (A=M-20, B=M-21) "TO THE BEST OF MY KNOWLEDGE", M-22s were 66-72 only (I just read an article about a FEW super rare M …
If you want it quieter.....replace the M22 with an M21. I'm not trying to be a smart ass but otherwise there is no way. 72 ss 454 "W" code,w/cowl induction (how many left?)
302 Z28 · #5 · Aug 18, 2003. palcu said: I had a 71 GTO with a M22 "rock crusher". This was an absolutely stout transmission. Had a distinctive "whine" due to the slanted gears. M22 had straight cut gears, all other Muncies had helical cut gears. The straight cut gears gave the M22 it's different sound. Other Muncies were quite compared to ...
Muncie M22 "Rock Crusher 4 SPEEDS FROM 1965 TO 1974: This page is devoted to OEM Complete units; New aftermarket units and OEM parts and NOS parts. ... Gear and …
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Times and requirements have changed making both the M21 and M22 the closest ratio production 4 speeds ever produced but also not practical for today's driving habits unless road racing is your thing. The new Muncies …
The M22 sound just got on my nerves when I had it in my vert. swapped it out with an M21 much quieter. I still have the M22 in storage along with some of the other original parts from its old racing days (intake, heads, ramhorns,rims, seats, interior pieces and 2 other hoods).
Description. 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 have been solved by the Super-Case design. The Supercase has extra casting in all the known weak areas. The mid plate is aircraft grade …
3162 posts · Joined 1999. #4 · Mar 31, 2023. Grey chevelle said: I have a 1970 m22 close ratio 4 speed from a 1970 ls6 I owned back I the 80s. Here is the info. It has the fine spline front and rear shafts. …
M22 transmissions can only be identified removing the selector cover(side cover) and visually identifying the straight cut gears-all other muncie transmissions had conical cut(angle) gears. The most well known Muncie transmissions are the M20(wide …
It is hard for someone that is not familar with the muncie to see the difference but the real M22's have a straighter gear in them then the M20/M21.... Can you give us …
Its gear surfaces are slightly wider than an GM piece to increase durability. It features a large 32-spline output like GM's final Muncie-built units. The First, Second, and Third speed gears in ...
Across the top of the page are the words "First Build 4/15/65 – 1st Shipment 4/19/65, recap of M22 (Rock Crusher) Trans." By comparing these M22 transmission assemblies to Chevrolet's 1965 transmission identification codes, I found a perfect match. This transmission identification code list was issued by the Chevrolet Facilities and ...
Rebuilt Transmission M22 1966-1974 Rock Crusher MTGM038. Rebuilt Overhaul Bearing Kits M21 & M22 Transmission ... 47 Rear Main Shaft Bearing (40mm ID, 23mm Thick, 90mm OD) Max load TRSM6308N Pocket Needle Bearing (w/Cage) JV441419. Input Needle Bearing no cage JV441419-N. Sliders M21 & M22 …
Muncie 4 Spd Car M22 "Close Ratio" Gear Kit This M22 Gear kit will have a 1" Countershaft pin, 16 Spline input, Close Ratio 2.20 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 …
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