Chevy Gm Rock Crusher Transmission Speed With Granny Gear

The sm465 is a four speed rwd or 4wd transmission the sm465 is a muncie engineering design this transmission is a top loader tower shifter with a non synchronized granny low 1st gear 2nd through 4th gear uses brass syncro rings bushings are used under all gears on the main shaft 3rd and 4th gear are the only gears removable from the

Feb 12 2008 re 4 speed manual tranny and transfer case on craig there were some rare few odd sticks that gm used in the 80s believe this is one of them one was a 4 speed od that couldnt stand up to the power of a smog era v8 and another was a nonod 4 speed that also lacked granny gear i agree either go with a sm465 or find a nv4500 and get granny

Chevy transmissions muncie m22 rock crusher 4 speeds were made from 1965 to 1974 the most popular transmission of its time for high performance cars built for chevrolet and all performance oriented gm cars they have the same gear ratios as the legendary m21 but with a heavy duty gearset

The 2201 ratio is commonly designated as the muncie m21 transmission the 2561 ratio is commonly referred to as the m20 muncie also had a second closeratio transmission designated m22 and often referred to as the rockcrusher which was used behind the highestperformance engines and in corvettes the m22 is a highly soughtafter performance transmission

General motors 5 speed transmissions borgwarner t50 197679 compact cars monza skyhawk etc inquire aluminum endloaded case with the bearing retainer being cast as part of the main case the bell housing is not part of this transmission it has a removable tube that the throwout bearing rides on

This a brand new supercase m22 4speed muncie 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

The sm465 is a four speed rwd or 4wd transmission the sm465 is a muncie engineering design this transmission is a top loader tower shifter with a non synchronized granny low 1st gear 2nd through 4th gear uses brass syncro rings bushings are used under all gears on the main shaft 3rd and 4th gear are the only gears removable from the

Muncie 4 speed classifieds 1970 chevrolet nova muncie 4 in san antonio 1970 pontiac trans am m21 in zanesville 4 speed transmissions ford muncie in greenville muncie 4 speed manual transmission in fargo muncie 4 speed with 205 in gadsden gm muncie 4speed transmission w granny gear also doug nash overdrivethe sm465 is an

The novak guide to the gm muncie sm420 transmission gm muncie sm420 transmission the sm420 is an impressive heavyduty truck transmission designed for and used in 34 1 and 2 ton trucks the sm420 was made by general motors from 1947 to 1967 military specification versions were made through the early 1980s get more

Jun 13 2017 the m20 and m21 used a gearset with a more angled tooth design on each gear left the m22 rock crusher used a gearset that features less of an angledtooth gearing right images courtesy the ratio of the fourspeed transmission placed in any car was usually determined by the engine size and rearend axle ratio

For sale savannah hinesville ga i have a 4 speed granny gear transmission that was in my 86 chevy crewcab dually truck and it worked very well but i rock crawler 4 speed transmission

Chevy m22 rock crusher transmission m rock crusher speed transmissions by jetboatbill new design muncie m22 rock crusher close ratio 4 speed this is the m transmission that gm could not build newly designed state of the art muncie front case from quot auto gear quot this is by far the quot best quot replacement aluminum case ever built for a

The 2201 ratio first gear is usually referred to as the muncie m21 transmission based on gms production codes the 2561 ratio is referred to as the m20 muncie also had a second closeratio transmission coded m22 and known as the rock crusher which was used behind performance bigblock engines and in some corvettes

M22 rock crusher 4 speed transmission henan 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 chevy gm new muncie m22 rock crusher close ratio 4 speed

This is a very rare and completely original m22 transmission with real m22 gears rock crusher gear set fits 1970 1971 and 1972 gm vehicles including chevy corvette camaro z28 pontiac firebird and chevelle main case 3925661 stamped p2c15c march 15 1972 c code means a m22 m22 muncie close ratio rock crusher 4 speed transmission side cover 3952648 with bolton

Sep 15 2010 across the top of the page are the words first build 41565 1st shipment 41965 recap of m22 rock crusher trans by comparing these m22 transmission assemblies to chevrolets 1965 transmission identification codes i found a perfect match

This is one of those undocumented parts that is not listed in all the parts books but takes some digging to you could get a roller bearing m22 firstgear assembly directly from chevrolet gm pn 3965752 the roller first gear was designed to prevent gear seizures in highspeed

The muncie m20 is basically a wideratio transmission and was intended for normal street driving use the early ones had a 2561 first gear the later 19661974 units had a 2521 first gear they are compatible with a gm 3 series differential they are for economy and street drivability and just cruising