29069 Calahan Rd, Roseville, MI 48066
Info: 586-772-0000 | Orders: 800-828-7229

1966 Corvette Camaro Chevelle Rebuilt Muncie 3885010 4 Speed Transmission 3/4/66

Corvette Series:Not Corvette
C2 1963-1967
Part Brand:GM, General Motors
Manufacturer:General Motors
GM Group Number:4.000
Manufacturer Part #:Various
Casting Number:3885010 3857584 3884685
Casting Date:mid late 1966
Interchange Part #:3885010
Placement Details:Manual 4 Speed Transmission
Surface Finish:Aluminum
Manufactured In:United States
This Item is Currently Unavailable

This is a Completely and Freshly Professionally Rebuilt Original REAL 1966 66 Chevy, Corvette, Camaro, Chevelle, Full Size Pontiac, Firebird, GTO, Tempest, Olds 442, Buick, Etc.  M20, (M-20), Muncie Wide Ratio 4 Speed Transmission,  (no aftermarket or imported gears).   This transmission has the 2:52:1 first gear and 1:1 4th gear. The date code stamp is P0304, March 04, 1966, dated 3885010 main case from the Muncie Plant and has a passenger side speedo gear tailshaft housing #3857584.  The rebuild parts include new syncro rings, keys and springs, small parts kit, snap rings, needle rollers, thrust washers, extension housing bushing, gaskets and seals, input and main shaft bearings.    It will also work in almost all 1955 to 1970 GM vehicles.

This is an outright purchase, no core is required.  If you have a core to trade in or want you transmission rebuilt, please contact us.  If this is not the transmission you need, we have several hundred manual transmissions in stock including Chevy 3 speeds, Old Borg Warner 4 Speeds, Small & Big Pin Muncies, Muncie Rock Crushers, Super T-10 Borg Warners, Doug Nash 4 + 3 Corvette Overdrives and others as well as most automatic transmissions.

Input Shaft: 10 Spline, Coarse Spine Input with 2 Rings (grooves), (Wide Ratio 2.52 First Gear)
Front Bearing Retainer Collar: 3915020 Casting Number, Cast Iron Material
Main Case Casting Number: 3885010, Small Counter Pin Diameter: 1"
Main Case Date Code: P0304 with Fill Plug Only, No Drain Plug
Side Cover: 3884685 
Tailhousing: Casting Number 3857584 with Right Hand, (Passenger Side), Speedo Gear Location
Tailshaft: 26 Spline, Small Diameter Coarse Spine Output Shaft
Cleaning: These Parts have All Been Cleaned but not Sand Blasted or Glass Beaded

NOTE: This is a 10 spline, coarse spline input used through 1970 in most GM cars although the 1970 Chevelle M-22 and 1971 and newer other cars use the fine 26 spline input. 

"Keep Your GM Car All GM!" This is what you need for your Bloomington Gold, NCRS Top Flight Restoration or Survivor Car!  This item can be picked up at our Corvette Parts and Service Center, Tracy Performance, 29069 Calahan Road, Roseville, Michigan 48066-1805, (just Northeast of Detroit), to save shipping costs.

Please email us with any questions on our products, services or shipping!
Please search the web for info on TracyVette and thanks for your interest!
The Copyrighted Info and Pictures are the Property of Tracy Performance!

Vehicle Applications:
1968 Chev/Pont/Olds/Buick 4 Speed  

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