Ratios of the M20, M21, M22 Muncie 4-speeds were produced in two different ratios wide-ratio (M-20) and close-ratio (M-21). An extra heavy duty close-ratio version (M-22) was also offered on many of the big-block high-performance models.The choice of transmission was dictated by the engine size and rear-axle ratio.

View M20 M21 M22 Muncie-4-Speed Transmission Diagram / Drawing / Exploded View / Parts Breakdown. T18J 4 Speed. T18J Bearing Kits; T355 5 Speed. T355 Bearing Kits; T355 Synchronizer Rings; T5 Jeep 5 Speed. T5J Bearing Kits; T5J Bearings; T5J Gears; T5J Seals; T5J Shafts; T5J Shift Forks;

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.

Muncie M22 "Rock Crusher" 4 Speed Gear Set. 2.20 Ratio with a 10 Spline Input. Includes: 1st Gear (36T), 2nd Gear (30T), 3rd Gear (27T), Input Shaft (26T), Front Reverse Idler (18T) & Cluster Shaft 27-22-19-17 Teeth. Fitment: GM Muncie M22 4 Speed Transmissions with 1" Cluster Pin. Replaces 71948, GKM22.

Find many great new & used options and get the best deals for Nice Pair Used GM OEM M20 M21 Muncie 4 Speed Transmission Shift Shafts 3/8" at the best online prices at Free shipping for many products! MUNCIE 4 SPEED TRANSMISSION SIDE COVER 3884685 M20 M21 M22 .. part. $25.00 + $23.15 shipping + $23.15 shipping + $23.15 shipping

M21 M22 4 Speed Muncie Manual Transmission. Mar 17, The M21 & M22 is a four speed, RWD or 4WD transmission. The M21 & M22 is a Muncie engineering design, 

GM Manual Transmissions. Muncie M21/M22 (Also M20 and BW T-10). Lawrence Wight's, 69 Camaro. Gear Vendors owes a lot to the Muncie close ratio trans.

2005/1/26 · He called it his "poor man's 5 speed". The BW replaced a M21 with 2.20 first gear. It was a complete different car. The BW 3.42 first gear was like having a 4.88 rear gear compared to the M21's 2.20 first gear. It was a real stump puller but still had good top speed and economy with the 3.08 rear gears.

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.

We offer many high quality Muncie 4 speeds for your 60's to mid 70's GM car. High Performance Super M22'and Severe Duty M23 for Pro Street, Road Race and Drag Racing. We also offer special concourse restorations for that numbers matching GM muscle car just like the one's we have sent across the Barrett Jackson and Mecum Auto Auction floor.

Get Your Genuine Classic Chevy Muncie 4-Speed At Affordable Prices From Description: Gear M22-(63-74) Muncie 4 Speed, 27-22-19-17 Cluster Gear Gear