Muncie M20 Wide Ratio Cluster 1" quantity. Add to cart. SKU: M297-8C Category: Transmission Parts. Additional information Reviews (0) Additional information. Brand: ... Muncie M22 Rock Crusher Front Reverse Idler $ 54.00 Add to cart; Muncie M20/M21 Front Reverse Idler Gear $ 49.00 Add to cart; Technical Resources.
Further Muncie identification 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.
Find many great new & used options and get the best deals for Chevy GM Muncie M22 Rock Crusher Wide Ratio 4 Speed Transmission 26 Spline at the best online prices at eBay! Free shipping for many products! ... item 4 Muncie Close Ratio M-22 Rock Crusher Four Speed Transmission NOW WITH NEW CASE Muncie Close Ratio M-22 Rock …
The Muncie M20 is basically a wide-ratio transmission and was intended for normal street driving use. The early ones had a 2.56:1 first gear. ... People think all Muncie four-speeds are Rock Crushers, but they're not. Nowadays there are custom gear ratios and set ups, including M21 wide-ratio and M22 wide-ratio units. You can pretty much get ...
The most well known Muncie transmissions are the M20(wide ratio), M21(close ratio), and the M22(rock crusher). Although not mentioned much, there was also an M23 transmission that was used, beginning in 1970. The M23 is recognized by a 26-spline(fine) input shaft and a large output shaft that requires a T-400 driveshaft yoke. ...
Muncie M20 Wide Ratio Third Gear $ 118.00 Add to cart; Muncie M20/M21 Front Reverse Idler Gear $ 49.00 Add to cart; Muncie M22 Rock Crusher Input 10 Spline $ 178.00 – $ 185.00 Select options; Technical Resources. Competition Plus Catalog; Installation Instructions for Hurst Shifters;
im looking forward to the classic m22 whine with the new Auto Gear Muncie (ultra wide ratio) M22Z. It has 2.98/2.04/1.46/1 ratios. First gear 2.98x3.08 rear yields 9.2 in first. MUCH better than my previous clutch slipping setup with 2.64x2.73=7.2. With 27" (255/60/15) tires highway rpm should be 2300@60, 2500@65 and 3000@78 - thats nice.
From 1963 to 1965 the close ratio M21 was ordered under the M20 RPO code and the factory decided whether to install a wide ratio M20 or close ratio M21 depending on the rear axle ratio specified. From 1966 on, the …
Build Date Code Location. 1. 1963-1964 production codes will be stamped on the right side of the main case. 2. 1965-1974 production codes will be stamped on the right side of the main case, just ...
IMHO save the close ratio gearsets of the M22 for use ahead of 3.73:1 and larger ratio rear ends, and FWIW I wouldn't go smaller than a 3.36:1 rear gear even with a wide ratio Muncie box. Forget the Muncie OD, unless it's going in your pickup truck. BTW, you can now buy high-quality M22 "rock crusher" style wide ratio gearsets!
For sale is a Factory Replica of the M22 1968-74 CLOSE Ratio Muncie Rock Crusher Four Speed Transmission typically used in High Performance 1970 thru 1974 Corvette`s, Camaros, Chevelles, Nova`s, El Camino`s, Impala`s, Oldsmobile's and Pontiacs. Also included are Hand Fitted Synchronizer Sliders and Hubs. Some sellers …
People think all Muncie four-speeds are Rock Crushers, but they're not. Nowadays there are custom gear ratios and set ups, including M21 wide-ratio and M22 wide-ratio units. You can pretty much get what you want.
The Wide Ratio M22 gear set is based on the 2.52 first gear ratio's and is available in both 10 and 26 spline Inputs. Contact us for suggestions of which set would best serve your application. This is an example of a …
The M21 & M22 is a four speed, RWD or 4WD transmission. The M21 & M22 is a Muncie engineering design, this transmission is aluminum case, extension housing and side cover. The side cover has seven bolts and two shift cams. The synchro rings have 35 teeth and the unit has a 4 step cluster gear. The reverse gears are helical …
Muncie (General Motors) 4-speed longitudinal transmissions were developed in three distinct models – The Muncie M20 wide ratio manual transmission, the Muncie M21 close ratio manual transmission and the Muncie M22 heavy-duty close ratio manual transmission. ... However, the Rock Crusher was only equipped in cars that had high …
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. ... Input Shaft, 21t, 26 Splines, Muncie Wide Ratio ...
Some of the best Muncie builders participate on that page. Muncie RPO Codes . Just three types of Muncie 4-speeds are available based on the RPO (regular production option) code used when a car was ordered: the M20 (standard wide-ratio), M21 (close-ratio), and M22 (heavy-duty close-ratio). (The M does not stand for "Muncie.")
It was time to give the Muncie four-speed a rebuild. Advertisement The Muncie four-speed is as legendary as the cars that it was put into, with the M20, M21, and Rock Crusher M22 models all part ...
Four speeds were available in GTO's, notably the Muncie M20 wide ratio, M21 close ratio and M22 rock crusher, and automatic fans had either a two-speed Powerglide from 1964 through 1966 or, from 1967 on, the three-speed Turbo-Hydramantic M40 option, which would become known as the "Turbo 400."
By the time the Muncie was in its final phase of production (1971-1974) it also gained a 32 spline output shaft in place of the original 27 spline unit. Wide, Close, or Rock Crusher Initially there were two …
STRONGEST Direct Replacement M22 With NEW Muncie AUTO GEAR Upgraded Ultra CASE With The Strongest M22w WIDE RATIO or Close Ratio Gears for a 4 SPEED TRANSMISSION. A GREAT HEAVY DUTY ROCKCRUSHER FOR YOUR CAMARO, NOVA, CHEVELLE, CORVETTE, GTO,442. ... New Auto Gear Upgraded Ultra Case …
NEW, Complete 67 - 68 Camaro Muncie 4 Speed Conversion Kit now available! This kit will get you basically everything needed to convert a automatic 1967 - 1968 Camaro into a four speed machine! You have a choice of a original completely rebuilt GM Muncie M20, M21 or M22 Rock Crusher transmission.
Based on these 2 factors, the FACTORY installed either a wide or close ratio 4sp (BOTH were M20) to be more compatible with the engine/rear ratio …
Muncie 4-speeds were produced in two different ratios wide ratio (M-20) and close-ratio (M-21). An extra heavy duty close-ratio version (M-22) was also offered on many of the big-block high-performance models.The …
This page is dedicated to MUNCIE 4 Speed parts, gears and Main Cases for production from 1963 to 1974. ... MUNCIE M22 "ROCK CRUSHER" 4 SPEED GEARS: ... Ratios. Our 4GTC Private Label M22 Gears are available in Close Ratio (2.20) and Wide Ratio (2.52) with 10 or 26 Spline Input so you don't have to swap out your clutch installing the Wide …
The Muncie four-speed was produced in two ratios: the wide ratio (M20) and the close-ratio (M21). That being said, there was a second, close-ratio version (M22) that was developed to survive duty …
New Muncie M20 2.52 Wide Ratio OR M21 2.20 close ratio gear set. M20 gearset also available in Italian . From $419.00 . Muncie M22 Rockcrusher Close, Wide and NEW Extra-Wide (2.98) Ratio Gear Set - Italian or Korean made ... The Rock Crusher earned its name from the audible noise it produced, resembling the crushing of rocks, and it quickly ...
Michael Coons on NEW Auto Gear Upgraded Ultra Case Muncie HD M22 4-Speed Rock-Crusher Street/Strip. Camaro, Corvette, Chevelle, Nova. SALE EXTENDED!!! ... M22W Wide Ratio 2.56-1st, 1.75-2nd, 1.36-3rd, 1;1-4th. Main drive oil seal only with 26spl input, 10spl is standard input retainer.
