gm muncie 4-speed decoding: drivin' it home

M-22 “Rock Crusher” Identification The M-22 close-ratio transmission is easily identified internally from the M-20 and M-21 versions by the angle of the gear teeth. The M-22 was only produced in a close-ratio version, so it will not appear on models with high rear-axle ratios (3.55 or lower numerically) unless someone has changed it

identifyingmuncie rock crusherby serialnumber

Identifying Muncie Rock crusher By Serial Number [randpic] How to Identify a M22 Rock Crusher It Still Runs Count the number of splines in the transmission. M-22 "Rock Crushers" made between 1967 and 1970 have 10 splines; transmissions made between 1969 and 1974 have 26 splines. S

guide tomunciem20, m21,and m22 four-speed transmissions

Aug 07, 2018 · The early production Muncie four-speed case is the small-bore unit and can be identified by the GM casting number 3831704 (see Muncie M20/M21/M22 Main …

muncie4-speed - chevelle stuff

1968 Muncie transmission tag #3924706. Date stamped P8P27 for Muncie, September 27, 1967 and partial VIN of 18K116891. Reported to be M21 but cannot find tag number to verify. 1968 Muncie coded P8S28 for November 28, 1967. 1968 Muncie coded P8S15 for November 15, 1967. Same transmission above with partial VIN stamping

muncie 4-speed identification guide- chevy diy

The first Muncie case was number 3831704. It had a 7/8-inch countershaft bore and used a 6207-type front bearing. All ball bearings have standardized numbers used by the bearing industry. The 6207 bearing’s dimensions are 35-mm bore, 72-mm outside diameter, and 17-mm width. ... Some of these transmissions have serial number date codes stamped

muncie four-speeds|hemmings

The 2.20:1 ratio is commonly designated as the Muncie M21 transmission. The 2.56:1 ratio is commonly referred to as the M20. Muncie also had a second close-ratio transmission designated M22 and often referred to as the "rock-crusher," which was used behind the highest-performance engines and in Corvettes, the M22 is a highly sought-after performance transmission

the 1965 chevroletm22 rockcrusher transmission: the

Sep 15, 2010 · This was done intentionally to these transmissions to take off the original casting number. The 1964-65 Muncie transmission main case casting number was #3851325. It was designed for the use of the 7/8″ countergear pin inside the transmission assembly

muncie m22 rock crusherfor sale | ebay

1970 1971 Oldsmobile 442 W30 Super RARE Muncie M22 Rock Crusher Tag 3978766WO. Pre-Owned. $500.00. or Best Offer. +$10.00 shipping. Watch

how to identify a muncie four speed: build date codes

Jul 29, 2016 · Build Date Code Breakdown 1963-1966 production codes will start with the letter P and have four numbers, for example: P0421. 1. P represents the manufacturing plant, Muncie

how to identify a m22 rock crusher | it still runs

An M-22 "Rock Crusher" is a Muncie four-speed transmission for cars made by General Motors in the 1960s. Identify a transmission type correctly before fitting it into your car. If you have the incorrect transmission, your car may not function properly

gm muncie 4-speed decoding : drivin' it home

M-22 “Rock Crusher” Identification The M-22 close-ratio transmission is easily identified internally from the M-20 and M-21 versions by the angle of the gear teeth. The M-22 was only produced in a close-ratio version, so it will not appear on models with high rear …

muncie 4-speed identification guide - chevy diy

The first Muncie case was number 3831704. It had a 7/8-inch countershaft bore and used a 6207-type front bearing. All ball bearings have standardized numbers used by the bearing industry. The 6207 bearing’s dimensions are 35-mm bore, 72-mm outside diameter, and 17-mm width. ... Some of these transmissions have serial number date codes stamped

identifying muncie rock crusher by serial number

Identifying Muncie Rock crusher By Serial Number [randpic] How to Identify a M22 Rock Crusher It Still Runs Count the number of splines in the transmission. M-22 "Rock Crushers" made between 1967 and 1970 have 10 splines; transmissions made between 1969 and 1974 have 26 splines. S

guide to muncie m20, m21, and m22 four-speed transmissions

Aug 08, 2018 · The early production Muncie four-speed case is the small-bore unit and can be identified by the GM casting number 3831704 (see Muncie M20/M21/M22 Main …

muncie 4-speed - chevelle stuff

1968 Muncie transmission tag #3924706. Date stamped P8P27 for Muncie, September 27, 1967 and partial VIN of 18K116891. Reported to be M21 but cannot find tag number to verify. 1968 Muncie coded P8S28 for November 28, 1967. 1968 Muncie coded P8S15 for November 15, 1967. Same transmission above with partial VIN stamping

muncie four-speeds | hemmings

The 2.20:1 ratio is commonly designated as the Muncie M21 transmission. The 2.56:1 ratio is commonly referred to as the M20. Muncie also had a second close-ratio transmission designated M22 and often referred to as the "rock-crusher," which was used behind the highest-performance engines and in Corvettes, the M22 is a highly sought-after performance transmission

the 1965 chevrolet m22 rockcrusher transmission: the

Sep 15, 2010 · This was done intentionally to these transmissions to take off the original casting number. The 1964-65 Muncie transmission main case casting number was #3851325. It was designed for the use of the 7/8″ countergear pin inside the transmission assembly

understanding themuncietrans metal tag -super chevy

Nov 30, 2016 · The M22 Rock Crusher was no longer available as an option. And, eventually, the Muncies were replaced by BorgWarners in 1974. There were usually two “broadcast code” letters added to …

muncie decoding?

Nov 23, 2014 · Casting # 3925661 was used in 1970 - 1974. The tail housing is casting # 3978764 and was used in 1970 – 1974. It has a passenger speedo location and 32 spline output. The side cover is casting number 3952648