4 speed munci identification,

[phrogs]

Who is good at identifing muncies?

Im not sure what I have found in my transmission.

the gears are sloped at a extream angle downward, acording to my 69 stingray guide book this leads me to believe I have M-22 guts in my tranny.
input shaft is smooth no rings

Only problem is I have a 64 case and side cover, the tail shaft and front bearing retainer are for a 69.
I have pictures to post here and ill send them or Ill up load them and send you the link to them.....


I also have these part numbers from my comanding oficers transmission any one care to take a stab?

side cover casting 3831707
top of case stamping 7K147519
side pass side stamp P7T28
case casting 3885010
tail casting 3846429
and the bearing retainer casting last 3 # 020
the input shaft has 2 rings so its a M-21
I think this may have come from something besides a corvette

any help is appreciated!
and he is looking to sell his for $300 think I should get it from him?

 

[JohnZ]

Your CO's tranny is a "mix" of parts, but the main case originally went in a '67 Chevelle from Kansas City. The link below shows the shallow helix angle of an M22 gearset (around 20 degrees); the M20/21 gears have a much steeper helix angle, around 40 degrees.