TonyMemberfrom Rochester NY. USA. ""You can outfit an M20 or M21 with Rock Crusher type gears, OR actually make a 3 speed O/D out of a 4 speed case. Forth being the overdrive obviously.. Actually the 3rd gear station becomes the OD and the 4th gear station becomes 3rd,so the shift pattern is a little d,1-2-4-3.
Step 5. Check whether there are any rings around the shaft splines. An M-22 "Rock Crusher" has no rings, so if you see rings in your transmission, it means it is not an M-22 "Rock Crusher." An M-22 "Rock Crusher" is a …
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. ... Muncie M22 REBUILD KITS: Quality parts from our …
10. To extract the reverse shifter shaft, you'll need to drive out the roll pin that secures it to the tailshaft housing. Then slide out the shifter shaft and remove the tailshaft housing. 11 ...
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 ... SUPER ROCK CRUSHER M22 650 HP. CALL for orders; NEW Direct replacement M22 ; For up to 650 HP power applications; 10 or 26 …
New Auto Gear Upgraded Ultra Case Muncie HD M22 4-Speed Rock-Crusher, Camaro 4-speed 10/27 or 26/27spl. FALL SALE!!! $ 3,499.00 $ 3,199.00. STRONGEST Direct Replacement M22 With NEW Muncie …
The primary difference between the regular close ratio Muncie (M-21) and the HD Muncie was the angle at which the gear teeth were cut. The M-22 gear teeth are …
How does the Muncie M-22 rock-crusher trans compare to the Borg Warner Super T-10 Power Brute transmission ... The shift lever assemblies break. This happened on the only two cars racing in our series. ... There was a very M21/M22 like 2.23, 1.77, 1.35, 1.00 made of 9310 alloy which came installed in a 904 nodular iron case with the cast iron ...
Check These Out. Clearance Discounted Items! This a BRAND NEW SUPERCASE M22 4-Speed Rockcrusher Style Transmission. Each new Auto Gear transmission is built from genuine Auto Gear parts, the highest quality available. This is a BEEFY version of the original Rock Crusher transmission.
Stronger. You're both right, the lower angle helix on the gears causes the whine. The gears aren't stronger, the overall tranny is. The more surface area the gears mesh on, the stronger they are. A high helix gear is stronger, BUT straighter cut gears put less thrust load on the trans case, so the tranny doesn't undergo as much flex.
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 …
sr530 · #20 · Aug 18, 2022. Here's some calculated numbers for torque applied to an input shaft. The engine was a 425ftlb Gen2 Coyote sealed crate engine making a low 10sec pass @ 3100lbs. Note that how fast the clutch pulls the engine down has a huge effect on the height of the torque spike.
Yes,avoid the penn syncromesh man trans oil,its like water/much thinner visc then 80-90 intended for a munice and it designed for todays man trans & not 40 yr old muncies. I also contacted pennzoil and they verified that fact and also stated it was never intended/designed for use in the older man trans like the muncie.
Contact. 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 …
Several times I have seen both Redline and Amsoil turn to jelly, break down and separate. I've had better success with Mobil 1 and Royal Purple. This probably won't happen to you since your car won't be seeing the extreme end of this spectrum. Drag race stuff, same deal. I doubt anyone is running 8 sec 1/4 miles with a Muncie and need be ...
Feel free to upload pictures and ask questions. 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).
A photo from when the last Muncie M22 "Rock Crusher" 4-speed came off the assembly line. A legend for toughness during the muscle car era, its 400 lb-ft torque factory rating limits what it can handle with …
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 …
Muncie 4-speeds have varying helix angles in the gearsets. Typically, the M20/M21 gearsets have a first-gear helix angle of 26.4 degrees and an input shaft angle of 39 degrees. The reduction in the angle with the M22 is …
Although some claim that the M23 is a 'rock crusher', it is indicated that this box was assembled in both wide and close ratio components and also with straight cut gears common to the rock crusher (M22) transmission. Looks like you have a second design-feb. 28th, 1968, M20 or M21. Definitely not a rock crusher(no straight cut gears).
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.
Its George Sollish has spent his career providing hobbyist with the best operating Muncie-built M20, M21, and M22 transmissions on the market. ... and the M22 "Rock Crusher" in three ratios (2.20 ...
I was just wondering how many different variations there are of the Muncie 4 speed and which ones are best and for what reason (s). I currently have an M22 Rock …
GENERAL MOTORS "MUNCIE" FOUR SPEED 10-1-01 10 C8 Idler Gear (Front) L18-s27T: except M22 3831762 WT297-10 L18-s27T: M22 'Rock Crusher' 3879997 WT297-10B C9 Idler Gear Assy (Rear) L17-27T 3831764 AWT297-10A C10 Idler Gear (Rear) Thrust Washer all 3774909 3774909 C11 Idler Shaft all 3831761 WT297-35 C12 Idler Shaft Lockpin all …
See all 46 photos 46 photos Consoles with chrome-ball-topped Muncie shifters are found in both Chevelles. They control heavy-duty M22 transmissions below the floor. They control heavy-duty M22 ...
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).
NEW Muncie M22 SUPER ROCK CRUSHER 4 speed $2899.00. No Price Muncie Overhaul Kit. ... Please scroll down to order extras (cluster pin, wrench,sliders etc) From $121.95 . Muncie Master Overhaul Kit. The ultimate Master rebuild kit for Muncie transmissions! Only high quality parts in kit. From $288.00 . Muncie Heavy Duty …
Although some claim that the M23 is a 'rock crusher', it is indicated that this box was assembled in both wide and close ratio components and also with straight cut gears common to the rock crusher (M22) transmission. This chart, so far, has been very accurate in identifying the muncie trans. over the years, so I wanted to share.
The bearing retainer slips over the input shaft and seals the transmission from the front. See all 34 photos. Fully lubricate the detent levers and side arms with assembly lube. Move the spring ...
The first substantial piece of documentation I found concerning the 1965 M22 transmission was the complete breakdown sheet for all M22 transmissions from 1965 through 1974. This sheet lists by model year, each M22 assembly shipped from Muncie with accumulative totals across the bottom of the page.