Muncie 4 Speed Transmissions and Parts (2024)

Update on new Muncies transmissions as of January 1st 2022.

Paul Cangialosi has been involved in the manual transmission parts and rebuilding business since 1981. His BOOK on building and modifying manual transmissions is an Amazon best seller. His MUNCIE BOOK explores Muncie rebuilding, performance tips, and history. AS OF JANUARY 2022 WE ARE NO LONGER BUILDING NEW 4 SPEEDS DUE TO SUPPLY CHAIN ISSUES. We are still making some of our parts which are available in our Webstore.Feel free to contact us with any questions.

Muncie Models ( For Reference Only)
( all Transmissions are 100% new )

Heavy Duty M20
$2300. USD

New Super Case

New billet alloy mid plate

New bronze bushed billet side cover

New Heavy Duty Tailhousing with line honed bushing

Zero rock sliders with matching hardened hubs

All new internals

Hex head sealing plugs

Forged synchro rings

Bronze thrust washers.

Dynamic oil feed first gear sleeve

Sealed front bearing w/ std slinger nut design

Anchored countershaft to mid plate

Uni-Cluster Counter Gear with no spacer tube

Universal 1 piece billet Shifter Shafts

Standard
M22 - M22W M22X
No Longer Available

New Super Case

New iron mid plate

New bronze bushed side cover

New Heavy Duty Tailhousing with line honed bushing

Zero rock sliders with matching hardened hubs

All new internals

Hex head sealing plugs

Forged synchro rings

Bronze and nitrided thrust washers.

Anchored countershaft to iron mid plate

Uni-Cluster Counter Gear with no spacer tube

Sealed system with alloy vent case. (26 spline input only )

Universal Shifter Shafts

M22Z
No Longer Available

New Super Case

New iron mid plate

New bronze bushed side cover

New Heavy Duty Tailhousing with line honed bushing

Zero rock sliders with matching hardened hubs

All new internals

Hex head sealing plugs

Forged synchro rings

Bronze and nitrided thrust washers.

Anchored countershaft to iron mid plate

Modular Counter Gear with no spacer tube

Sealed system with alloy vent case. (26 spline input only )

Universal Shifter Shafts

Drag Special
M22 - M22X or M22W
No Longer Available

New THRUST BUTTON Super Case

New iron mid plate

New bronze bushed side cover

New Heavy Duty Tailhousing with line honed bushing

Zero rock sliders with matching hardened hubs

All new internals

Hex head sealing plugs

Forged synchro rings

Bronze and nitrided thrust washers.

Anchored countershaft to iron mid plate

Modular DS ( Drag Special Gearset ) with heavy duty 1st gear.

9310 Alloy Countershaft stub section.

Sealed system with filtered vent case.

Universal Shifter Shafts

Light Weight
M22 M22X or M22W
No Longer Available

New THRUST BUTTON Super Case

New iron mid plate

New bronze bushed side cover

New Heavy Duty Tailhousing with line honed bushing

Caged Counter Gear Needle Bearings

Zero rock sliders with matching hardened hubs level 3 clearance

Investment cast steel shift forks

All new internals

Hex head sealing plugs drilled for safety wire

Forged synchro rings

Bronze and nitrided thrust washers.

Anchored countershaft to iron mid plate

Rifle drilled mainshaft ( reduces 1 lb of weight and aids in cooling)

Modular gearset with rollerized 1st speed gear

Sealed system with alloy vent case.

Universal Shifter Shafts

SPEC-25 M22 or M22X A-SEDAN

No Longer Available

New THRUST BUTTON Super Case

New iron mid plate

New bronze bushed side cover

New Heavy Duty Tailhousing with line honed bushing

Zero rock sliders with matching hardened hubs level 3 clearance

Investment cast steel shift forks

Caged Counter Gear Needle Bearings

All new internals

Hex head sealing plugs drilled for safety wire

Forged synchro rings

Shot peened and surface enhanced gearset ( improves strength reduces fatique)

CT Telfon Coated case ( reduces heat )

Bronze and nitrided thrust washers.

Anchored countershaft to iron mid plate

Rifle drilled mainshaft ( reduces 1 lb of weight and aids in cooling)

Modular M22 style gearset with rollerized 1st speed gear

Sealed system with alloy vent case.

Universal Shifter Shafts

*Model Type*	*Ratios*
M20	2.52 1.88 1.46 1.00
M21	2.20 1.64 1.28 1.00
M22	2.20 1.64 1.28 1.00
M22W - DS	2.56 1.88 1.37 1.00
M22W - DS STD	2.56 1.75 1.37 1.00
M22W	2.56 1.75 1.37 1.00
M22X	2.20 1.51 1.17 1.00
M22Z	2.98 2.04 1.47 1.00
SPEC-25	2.20 1.64 1.28 1.00
SPEC-25X	2.20 1.51 1.17 1.00
A-SEDAN	2.56 1.90 1.37 1.00

The new Muncie style 4 speed even in base form is a huge improvement over factory units. Each unit starts with a completely new gearset and all internals blueprinted by us. The internals are installed in the Supercase, iron midplate and heavy duty tail. The unit is buttoned up with a new side cover assembly and forks. The side cover assembly has shifter shafts that ride on roller bearings and in some models bushings. This improves shift feel. Every component is new, there is no core charge.

You can obtain a new transmission as a standard replacement unit with a 10 spline input and 27 spline output in M20, M21, and M22 ratios. You can have the same ratios in the 26 spline input and 32 spline output or a mix of spline combinations at no additional cost.

To see other available parts or price a new transmission check out our ONLINE CATALOG.