What is a M20 Muncie?

The Muncie M20 is basically a wide-ratio transmission and was intended for normal street driving use. The early ones had a 2.56:1 first gear. The later 1966-1974 units had a 2.52:1 first gear. They are compatible with a GM 3 Series differential. They are for economy and street drivability and just cruising.

How can you tell M20 from M21?

So you can tell the difference by counting the teeth on the input or the cluster gear that engages the input. M21 input = 26 teeth. M20 input = 21 teeth. This is on a 66 to 74 model year Muncie.

How many splines does a Muncie M20 have?

26
Keep this in mind when you’re searching for a Muncie transmission. Cangialosi tells us all M20 and M21 transmissions were produced with both 10- and 26-spline input shafts. The 26-spline input shaft came into production later in the 1970s for the M20 and M21.

Where can I find a General Motors Muncie 4 speed transmission?

GENERAL MOTORS MUNCIE 4-SPEED MANUAL TRANSMISSION ASSEMBLIES, GEARS & PARTS APPLICATIONS: GENERAL MOTORS 1963-1974 GENERAL MOTORS (HIGH PERFORMANCE) AUTO GEAR EQUIPMENT 530 State Fair Boulevard, Syracuse, New York 13204 (800) 634-3001, Inside New York: (315) 471-8141 Fax Numbers: (315) 471-8146 or (800) 537-4213 AUTO GEAR EQUIPMENT

What kind of shifter does a Muncie have?

My car has a hurst v-gate shifter in it currently and a butchered up trans tunnel. I am no drag racer and personally hate the inline v-gate, and. 4-Speed Shifter Components Diagram Thumbnail 4-Speed B, , ARM – transmission linkage, (Muncie), A, E.

What is the transmission ID and ratio guide for Muncie?

Muncie Transmission information Muncie Transmission Id and ratio guide D & L Transmission To order call 1-631-351-4837 Muncie Transmission ID and Ratio Guide Series Gear Ratio

How can I tell if my Muncie has a m21 or M22?

As mentioned previously, we know that the Muncie came with several ratios. Because main cases are often swapped rather than being repaired, the best way to determine if you have an M20, M21, or M22 is to simply look at the gears. Without removing the sidecover you can look at the input shaft and check for identification grooves cut into the spline.