How To Identify A M22 Rock Crusher In Jamaica

How to Build a Bulletproof Muncie M22 Four-Speed …

The Muncie M22 is known as the Rock Crusher. See how we improve its strength and versatility by adding a Gear Vendors Overdrive. Cam Benty Writer John McGann Photographer Nov 04, 2022.

Muncie 4 Speeds

There are several things are needed to identify a Muncie correctly. The first is a main case casting number. Second account of the input shaft and output shaft splines and if any rings or grooves …

M-22 "rock crusher"

Thus, bottom line, ONLY the M22 is "properly" nicknamed as "Rock Crusher". And, some people, who just flat do not know what they are talking about (BS'ers), or they just want …

M22 Identification

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 Muncie sites and I am …

How To Identify Chevy Four-Speed Transmissions

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 behind engines with a …

M22 Rock Crusher

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 27 Splines on the mainshaft Output (yoke). For identification purposes all GM M22s have seven bolts attaching the Side Cover (inspection plate), no lines or rings on the Input Splines ...

how to identify a m22 rock crusher in Jamaica

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 teeth.muncie 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 ...

Muncie 4-Speed Identification Guide

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.") Typically, when you ordered a GM car you had standard options and accessories installed.

m22 rock crusher

The above post's are right, except you cannot just rely on the input shaft, case number and such to identify it as an M22. There are virtually no unmolested M22's in …

M22-Wide vs M22 "Rock Crusher"

In the beginning, the M-22 was the Heavy Duty Muncie, and it was available ONLY in the close ratio version (2.20:1 first gear ratio). 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.

Muncie I.D. chart | Chevy Tri Five Forum

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 …

How To Identify Chevy Four-Speed …

The 1965 Chevrolet M22 Rockcrusher Transmission: The Mystical Transmission

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.

Muncie I.D. chart | Chevy Tri Five Forum

C-M22 MODEL IDENTIFICATION(1969-1972) A-M20 B-M21 C-M22 ... 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 ...

Guide to Muncie M20, M21, and M22 Four-Speed …

The M22 Rock Crusher would come later to accommodate the heavy twist of Chevrolet's big-blocks in the mid-1960s. The M20 and M21 transmissions produced from 1963-'74 are easy to identify in both wide- and …

Rock Crusher identity

Look in the post at the top on the trans fourm. It tells how to pick out what is what but the main thing to look for in a M-22 is the gear angle. Take off the side cover and look at the angle of the gears. M-20, m-21 will have 45 …

Muncie Identification | The H.A.M.B.

How to Identify Your Muncie 4-Speed Transmission

Case and Housing Codes: These codes can identify the model of the transmission. The most common types are the M20, M21, and M22, which relate to the gear ratios and the intended use. Physical Characteristics: Inspect the transmission housing – differences can be spotted between the Muncie models based on the bolt patterns and overall design.

Identifying Muncie 4-Speeds

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.

Muncie 4 Speed Transmissions

Top countergear is an M22. Lower gear is an M20. Notice the different helix angles of the gears.

M22 Identification

This bumbed me out since I had previously read that this was an indication that it was a Saginaw not a Muncie. It does have a 7 bolt side cover. Doe this mean it's still an M22 but just manufactured at the Saginaw assembly plant or it's not an M22 "Rock Crusher Transmission". I am just learning !

How to Identify a M22 Rock Crusher

You can identify several unique signs that identify an M-22 "Rock Crusher," even if it does not have a GM hallmark imprinted on its surface. Step 1 Check the casting number, the production …