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Contrary to popular belief, you cannot tell a 4speed Muncie is an M22 by looking at the input shaft splines. All M22s use a 26spline shaft made from a stronger alloy than the other 4speeds. However, GM made both 10 and 26spline versions of the M20 and M21. There are two ways you can tell the difference between the M21 and the Rock Crusher.
GM's aim with the Muncie fourspeed was to produce a greater shift using bigger synchro cones. He tells us each the M20 wideratio and M21 closeratio transmissions have been first provided in 1963. The M22 Rock Crusher would come later to accommodate .
· Also, there's companies out there that are making new gear set's for Muncie's as well..not just stock replacement stuff either. 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.. Kinda nice if you want the Muncie look and an overdrive..
Muncie M62/M64 — 3speed longitudinal transmission made by GM; Muncie SM420 — 4speed manual used up to 1967, very similar to sm 465 except small changes to gear ratios and loion of reverse. New Process Gear NP435 4speed longitudinal transmission used in a select handful of 6772 GM pickups; New Process Gear A833 RPO MY6 or MM7 — 4 ...
· Hey All! Can anyone tell me witch Muncie 4 speed they used in 1973? I recon the M20 0r M21. Am i correct? Since the M22 Rockcrusher normally were for the bigblocks, and no bigblocks were offered in 1973 as we all know (At last not in a Camaro)
muncie. m21 to m22 '63'74 4speed manual transmission: gear conversion kit. 6piece; heavy duty; with 26 tooth, 10 spline input shaft; with 1st, 2nd, 3rd gears; with cluster shaft; with front idler gear . m21 to m22 gear conversion kit; heavy duty; professional quality: iso9001 certified; converts m21 to m22 close ratio
· GM's goal with the Muncie fourspeed was to produce a better shift employing larger synchro cones. He tells us both the M20 wideratio and M21 closeratio transmissions were first offered in 1963. The M22 Rock Crusher would come later to accommodate the heavy twist of Chevrolet's bigblocks in the mid1960s.
Complete Muncie M21 Close Ratio Gearset consisting of 10 Spline 26T Input Gear, Cluster Gear, 2:20 1st Gear, 2nd and 3rd Gears for Muncie Transmissions 64 thru 74. Cluster Gear accommodates a 1" pin. Tooth Counts are as follows: Input 26 T. Cluster . 1st Gear 36T. 2nd Gear 30T. 3rd Gear 27T. Best prices on Ebay as well as the net.
rock crusher ratiosLace Lucknow Academy of MUNCIE M22 4 SPEED NEW GEAR SET CLOSE RATIO Rock New M22 Gear Set Close ratio Rock Crusher New In The Box For 59500 This gear Set has all 3 speed gears 1st 2nd 3rd the cluster input and the. More Info high crushing ra0 jaw crusher. Get Price; Muncie 4 M22 Rock Crusher The
· We are restoring a 72 Chevelle SS and would like to use a Muncie "Rock Crusher". Is there anyone out there that and tell me the difference between a Muncie M22W and a M22 Rock Crusher. I have tired to look online but not finding anything to help. I would appreciate it. Thanks.
· Muncie 3 speed LD Overhaul Kit. I thought all 3 speeds were all the same also. I replaced the Saginaw three speed in my 1968 C10 with a Muncie M13 three speed. With a :1 rear gear, the effective First gear ratio is equal to a :1 First gear Muncie fourspeed with :1 rear gear. The Muncie SM465 is a heavyduty, fourspeed manual ...
Muncie 4 speed rock crusher gear ratio 22 Rock Crusher 4 Gear Trans Co. uncie 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 220 first gear or Wide Ratio 252 first gear The Wide Ratio M22 gear set is based on the 252 first gear ratios and is available in both 10 and 26 spline Inputs This is .
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 cut and are loed ...
GM Muncie 4Speed Decoding Drivin It Home. M22 "Rock Crusher" Identifiion. The M22 closeratio transmission is easily identified internally from the M20 and M21 versions by the angle of the gear .
An M22 retains less heat due to its straightcut gears and the lack of thrust that helicalcut gears create. An M22 holds up well. The downside is it tends to make noise. It will rattle at low rpms and whine at high rpms. The M22 is called the Rock Crusher. People think all Muncie fourspeeds are Rock Crushers.
Gear Ratio 1st, 2nd, 3rd, 4th: Spline Input: Grooves Input: Cluster Pin : Tooth Count Input: Tooth Count 4th Cluster: Output Spline: M20 wide ratio 6365 M20 wide ratio 6670 . M20 wide ratio 7174 . M21 close ratio 6365 . ... Muncie Parts List: Four Speed Transmission
Auto Gear's "Syracuse 4speed" is a Muncie on steroids. General Motors received royalties for every T10 sold from BorgWarner, so you have to wonder why they would bother making their own 4speed at the Muncie plant. It appears that BorgWarner had an exclusivity contract with General Motors until 1960.
This a BRAND NEW SUPERCASE M22 4Speed 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.
MUNCIE M22 4 SPEED NEW GEAR SET CLOSE RATIO Rock. New M22 Gear Set. Close ratio. Rock Crusher. New In The Box For This gear Set has all 3 speed gears, 1st, 2nd, 3rd, the cluster, input and the reverse idler gear. This will give it that brand new feel and sound. Available in Close ratio, 10 spline Coarse or 26 splined fine.
· Muncie 4 Speed1 M22 Rock Crusher The. You can outfit an m20 or m21 with rock crusher type gears, or actually make a 3 speed od out of a 4 speed being the overdrive nice if you want the muncie look and an overdrive actually the 3rd gear station becomes the od and the 4th gear station becomes 3rd,so the shift pattern is a little weird,1243.
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