The Gear Box Transmissions, Inc
Muncie Parts

Thanksgiving Special!!

Type in discount code 'TURKEY' and you will save 5% on any order!

Apply code during checkout.

THANKSGIVING HOLIDAY

WE WILL BE CLOSED WED NOV. 26 - SUN NOV 30. DAILY SHIPPING WILL RESUME MONDAY DEC. 1.

HAPPY THANKSGIVING TO YOU AND YOUR FAMILIES!


Muncie Master Overhaul Kit

The ultimate Master rebuild kit for Muncie transmissions.  Kit includes:

$265.00


Muncie Overhaul Kit 1966-74

Complete overhaul kit for Muncie 4 speed transmissions, 1966-1974.

From $106.95

Muncie Heavy Duty Competition Overhaul kit 66-74

Heavy Duty Competition overhaul kit for Muncie 4 speed transmissions, 1966-1974.

Also available with front nut wrench and/or cluster pin.

From $157.37


Muncie Overhaul Kit with Wrench 1966-74

Complete overhaul kit & Front retaining nut wrench for Muncie 4 speed transmissions, 1966-1974.

$121.95


Muncie Overhaul Kit with Cluster Pin 1966-74

Muncie 66-74 overhaul kit with cluster pin.

$123.95


Muncie Overhaul Kit with Nut Wrench & Cluster Pin 1966-74

Muncie 66-74 overhaul kit with input nut wrench and cluster pin.

$136.95

Muncie Overhaul Kit 1963-65

Complete overhaul kit for Muncie 4 speed transmissions, 1963-1965.

$106.95


Muncie Overhaul Kit with Wrench 1963-65

Complete overhaul kit & Front retaining nut wrench for Muncie 4 speed transmissions, 1963-1965.

$121.95

Muncie Overhaul Kit with Cluster Pin 1963-65

Muncie overhaul kit 1963-65 with cluster pin

$123.95

Muncie Overhaul Kit with Cluster Pin and Nut Wrench 1963-65

Muncie overhual kit 1963-65 with cluster pin and front retaining nut wrench.

$136.95


Muncie Front Bearing Upgrade Kit

This kit will enable you to upgrade your Muncie front bearing to the much stronger & more durable USA Made M6307NR Max bearing or a Japanese made Nachi sealed bearing. This will replace the narrower, less durable standard front bearing.

From $34.95


Muncie Front Nut Wrench
Front nut wrench-is designed to ensure proper tightening of the front retaining nut on all Muncie M20, M21 & M22 transmissions.

$16.95

Muncie Cluster Pin 7/8" or 1"

Fits all Muncie transmissions with 7/8" or 1" cluster pin. You must specify which pin you need when purchasing.

From $19.95


Muncie Steel Speedo Drive Gear

Muncie steel drive gear with 7 OR 8 teeth. Will fit either the 27 spline or 32 spline output shaft.

From $21.95

Muncie Shift Fork

Muncie shift fork for all Muncie transmissions, M20, M21, M22.

From $22.45


Muncie Reverse Shift Fork

Muncie Reverse Shift fork fits all Muncie transmissions, 1963-74, M20, M21 & M22.

$15.98


Muncie Front Bearing Retainer

Muncie front bearing retainer for all Muncie transmissions, M20, M21, M22.

$26.00

Muncie Oil Slinger

Muncie front bearing oil slinger.

$2.50


Muncie Slider

Slider for all Muncie M20, M21 & M22 transmissions, 1963-1974.

$30.95

Muncie Torque Lock Slider

Torque lock slider for all Muncie transmissions, M20, M21, M22, 1963-1974.

$30.95

Muncie Synchronizer Assembly

Muncie synchronizer assembly fits all Muncie transmissions, 1963 - 1974, M20, M21 & M22.

$71.95


Muncie Synchronizer Hubs 1-2 or 3-4

Muncie synchronizer hubs for the 1-2 or the 3-4 synchronizer. 

From $25.00

Muncie 1st Gear 36 Tooth Auto Gear Italian or South Korean made

Muncie 1st gear with 36 teeth fits all M20 & M 21 Muncie transmissions 1964-74.

From $70.00


Muncie Rollerized 1st Gear

Rollerized 1st gear, 36 tooth, for Muncie M20 & M21 transmissions, 1964-74.

$159.00

Muncie 2nd Gear 30 Tooth Auto Gear Italian or South Korean Made

Muncie 2nd gear with 30 teeth. Fits all M20 & M21 muncie transmissions.

From $60.00


Muncie 3rd Gear 27 Tooth Auto Gear Italian or South Korean Made

Muncie 3rd gear with 27 teeth fits all M20 & M21 muncie transmissions.

From $55.00


Muncie Input / Main Drive M20 M21

Input / main drive with 10 spline for Muncie M20 or M21 transmissions.

Please specify which input you need when placing your order.

From $99.00


Muncie Cluster Gear M20 M21 FOR 1" or 7/8" cluster pin

Muncie cluster gear for 1963-65 (7/8" cluster pin) or 1966-74 (1" cluster pin) Muncie either M20 or M21.  

From $141.70

Muncie M20 Wide Ratio or M21 Close Ratio Gear Set

New Muncie M20 2.52 Wide Ratio OR M21 2.20 close ratio gear set.

From $409.00


Muncie M22 Rockcrusher Close & Wide Ratio Gear Set

 

New Muncie M22 2.20 close ratio or 2.52 wide ratio Rockcrusher gear set is availabe with either a 10 or 26 spline input. 

You must select whether you need a wide or close ratio & which input spline count, 10 or 26.

From $540.00

Muncie M22 1st gear 36 tooth

1st gear with 36 teeth for all Muncie M22 close ratio transmissions.

$102.00


Muncie M22 Rollerized 1st Gear

Rollerized 1st gear, 36 tooth, for Muncie M22 transmissions, 1964-74. A rollerized 1st gear is a must in high load and high speed applications, such as road racing or circle track racing.
Does not fit Muncie M20 or M21. 

$155.00

Muncie M22 2nd gear 30 tooth

2nd gear with 30 teeth for all Muncie M22 close ratio transmissions.

$89.70

Muncie M22 3rd gear 27 tooth

3rd gear with 27 teeth for all Muncie M22 close ratio transmissions.

$83.20

Muncie M22 Input Shaft 10 or 26 spline

Input shaft for the Muncie M22 transmission. Available in either 10 or 26 spline.

From $128.70

Muncie M22 Cluster Gear

Cluster gear for Muncie M22 transmissions. 

$169.00


Muncie Mainshaft 27 Spline

New Muncie Mainshaft 27 spline.

$135.00


Muncie Mainshaft 32 Spline

New Muncie Mainshaft 32 spline.

$159.00


Muncie Mainshaft 1st Gear Bushing

Fits all Muncie transmissions, 1964-74 M20, M21, & M22. Auto Gear USA made or South Korean made.

This is an upgraded designed sleeve that provides better lubrication between the gear and the bushing.

From $25.23


Muncie Reverse & Idler Gearset, Idler Gear or Reverse Gear

Muncie reverse and idler gear set or individual gears. 

From $35.00


Muncie Reverse Idler Shaft

Muncie Reverse Idler Shaft fits all 1963-74 M20, M21, M22 transmissions.

$18.98


Muncie Mid Plate

Muncie Steel midplate. Will fit all Muncie transmissions, 1963 - 1974, M20, M21, M22.

$91.75


Muncie Tailhousing 27 or 32 spline

This is an all new, re-designed Muncie aftermarket tailhousing manufactured by Auto Gear.

From $185.95


Muncie Super Case

This is the all new, redesigned replacement case for all Muncie M20, M21 & M22 transmissions 1963-74. Please specify pin size when ordering.

From $263.95


Muncie Bushed Side Cover Kit

Muncie bushed side cover kit. Superior quality over the original OEM side cover. 

$136.77


Muncie Detent Levers

Muncie detent levers (2) fits all Muncie transmissions, 1963-74 M20, M21, M22.

$11.50


Muncie Heavy Duty Detent Lever Spring

Heavy duty detent lever spring for all Muncie transmissions, 1963-74, M20, M21, M22.

$3.50

Muncie Reverse Lever Detent Ball & Spring

Ball & spring for Muncie reverse lever detent.

$2.00

Gasket Seal Bushing Kit 27 spline
This is a complete gasket, seal and bushing kit for all Muncie trasmissions, 1963-1974 with 27 spline. Everything is included to reseal a leaking transmission.

$13.50


Gasket Seal Bushing Kit 32 spline
This is a complete gasket, seal and bushing kit for all Muncie trasmissions, 1963-1974 with 32 spline. Everything is included to reseal a leaking transmission.

$16.00


Speedometer Housing

Solid steel speedo housing comes with seal and O ring.

$6.95


Speedo Housing Tab & Bolt

Tab & bolt for GM Speedo housing. Fits T5, T10, Super T10, Saginaw, Muncie GM applications. Includes metric & American bolt, depending on application.

$3.50


Speedometer Driven Gears

New OEM AC Delco gears are used in Muncie, GM T10, GM Super T10, Saginaw 3 & 4 speed, GM T5, Powerglide, 200 & 350 transmissions.

From $11.00


TransJel Transmission Assembly Lube

TransJel Assembly Lube for all automatic & manual transmissions. Lubricates and holds needle bearings & thrust washers during assembly. Remains smooth and blends with all automatic & manual transmission fluids. One pound tub.

$6.89


Muncie Caged Pocket Bearing with 17 rollers

Caged Pocket bearing with 17 rollers for all 1963-74 Muncie transmissions, M20, M21 & M22.

$6.50


Muncie Front Retaining Nut

Muncie front retaining nut for all 1963-74 Muncie transmissions, M20, M21 & M22.

$5.00


Muncie French Locks

Pair of french locks for the front of all Muncie transmission that secure the four front bearing retainer bolts.

$3.50


Muncie Synchronizer Key & Spring Set

Synchronizer key & spring set for all Muncie transmissions. Includes 3 keys & 2 springs.

$3.00


Muncie Synchronizer / Blocker Ring 1963-65 or 1966-74

Muncie synchronizer / blocker ring will fit either:

From $7.00


Muncie Reverse Lever Tapered Pin

Muncie reverse lever tapered pin for retaining reverse lever shaft & tailhousing.

$1.00


Muncie Front Idler M20 M21 M22

 

Muncie M20, M21 18 tooth front idler. WT297-10

Muncie M22 18 tooth front idler WT 297-10B

From $37.70


Muncie Small Parts Kit 1963-65 or 1966-74

 

Small parts kit for 1963-65 or 1966-74 Muncie transmissions.

From $21.00


Muncie Bearings, Front or Rear

Front or rear bearing for all Muncie transmissions, 1963-74.

From $22.00

Muncie Tailhousing Bushing 27 or 32 spline

Tailhousing bushing for 27 or 32 spline Muncie transmissions.

From $3.50


Muncie Side Cover Seal

One side cover seal for all Muncie transmissions.

$0.90

Muncie Rear Seal 27 or 32 spline

Rear Seal for 27 or 32 spline Muncie transmissions.

From $3.25


Muncie Bolt Kit

Muncie bolt kit includes all bolts for Muncie transmissions. 21 bolts are included.

  • side cover bolts
  • tailhousing bolts
  • front bearing retainer bolts for early & late applications

$7.50

The Gear Box Transmissions, Inc. * Phone 734-793-0727

* Fax 734-793-0729