1964-65 Muncie M21 complete 4 Speed core
November 11th, 2018, 04:23 PM
#1
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Join Date: Feb 2010
Location: Modesto CA
Posts: 1,528
1964-65 Muncie M21 complete 4 Speed core
***********SOLD*********
I have a disassembled but complete close ratio Muncie m21 for speed transmission for sale. It was a complete running transmission that I was going to have rebuilt but decided to go a different direction. The casting number are as follows:
Main Case Casting Number = 3851325 1964 - 1965 Patent Number, 7/8" Bore
Tail Housing Casting Number = 3857584 1966 - 1970 Passenger Speedo, 27 spline
Side Cover Casting Number = 3884685 Cover issued with "584" tail stud type shift shafts
Input Shaft Tooth Count and Splines = 1963 - 1970 M21 One ring 10 spline 26 tooth input, 27 tooth output
Ratio
Year Type Rings 1st 2nd 3rd 4th Rev
1963 - 1974 M21 One 2.20 1.64 1.28 1.00 2.27
Date code = P 0203 (February 03. 63-67 did not include a year with the date.)
Also stamped = L159606 (maybe partial vin Los Angeles plant?)
All parts and gears are included. New price $400 plus shipping.
I have a disassembled but complete close ratio Muncie m21 for speed transmission for sale. It was a complete running transmission that I was going to have rebuilt but decided to go a different direction. The casting number are as follows:
Main Case Casting Number = 3851325 1964 - 1965 Patent Number, 7/8" Bore
Tail Housing Casting Number = 3857584 1966 - 1970 Passenger Speedo, 27 spline
Side Cover Casting Number = 3884685 Cover issued with "584" tail stud type shift shafts
Input Shaft Tooth Count and Splines = 1963 - 1970 M21 One ring 10 spline 26 tooth input, 27 tooth output
Ratio
Year Type Rings 1st 2nd 3rd 4th Rev
1963 - 1974 M21 One 2.20 1.64 1.28 1.00 2.27
Date code = P 0203 (February 03. 63-67 did not include a year with the date.)
Also stamped = L159606 (maybe partial vin Los Angeles plant?)
All parts and gears are included. New price $400 plus shipping.
Last edited by 4speed455; July 21st, 2020 at 11:52 AM.
November 17th, 2018, 10:02 PM
#2
Registered User
Thread Starter
Join Date: Feb 2010
Location: Modesto CA
Posts: 1,528
Anybody know exactly what the L159606 stamp actually means for sure? Doesn’t look correct for a partial VIN. Any way to tell what year and/or model car this transmission actually came from? Looks like the tail housing and possibly side cover may have been swapped? It was removed from a running 1970 Camaro before it was disassembled.
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