muncie 4 speed for sale - The 1947 - Present Chevrolet & GMC Truck Message Board Network

D.W.jr · 02-04-2004, 09:22 PM

I have a rebuilt muncie 4 speed for a gm car. I was going to use it in my 67 camaro but plans have changed.
rebuilt hurst shifter and stick goes with the deal
$700.00 plus shipping

bad 71 chevy · 02-04-2004, 09:34 PM

do you have the numbers thanks and pics also do you know what it came off of

JimKshortstep4x4 · 02-04-2004, 09:40 PM

Is it a M-20, 21, or 22?

Jim

D.W.jr · 02-04-2004, 09:57 PM

its a m-21 I think, I know its not a m-22 rockcrusher

numbers are as follows
3884685
3831704
and 3846429 on tailshaft
no repairs to the case and no boogered up mounts
804-795-5697 for more info. Thanks Dennis

Olden Days · 02-04-2004, 10:26 PM

how many circular grooves on the input shaft? 1 or 2?
1 groove = m21
2 grooves = m20
0 grooves =m22

fast_dev · 02-05-2004, 01:07 AM

1 groove is always an m-21, the other two switched at a certain year (not sure think it was 65 or 66) later m-20's have no grooves. somewhere i found this info, might be chevrolet by the numbers book, it tells you the best way is to count teeth on the unput gear. both of my m-20's have no grooves. Dev.

bad 71 chevy · 02-05-2004, 01:17 AM

This is what i found out on the numbers do not know what it all means but hear it is
3831704-1963 only small 6207nr front bearing, 7/8" bore
3846429-1963-1965 regular thick web driver speedo 27 spline
3884685 cover issued with "584" tail stud type shift shafts
like i said do not know what it all means

Mike Culpepper · 02-05-2004, 04:25 PM

Don't know if this helps or not?
http://lib1.store.vip.sc5.yahoo.com/...IDComplete.pdf

Probably not enough info here actually
Mike

02-04-2004, 09:22 PM	#1
D.W.jr Registered User Join Date: Jun 2001 Location: Richmond,VA, USA Posts: 106	muncie 4 speed for sale I have a rebuilt muncie 4 speed for a gm car. I was going to use it in my 67 camaro but plans have changed. rebuilt hurst shifter and stick goes with the deal $700.00 plus shipping __________________ 69 custom camper special 4x4 1969 K5 blazer 1972 short step 4wd factory air gmc

02-04-2004, 09:34 PM	#2
bad 71 chevy Registered User Join Date: Jun 2000 Location: Omaha NE 68122 Posts: 637	do you have the numbers thanks and pics also do you know what it came off of __________________ 71 Chevy C/10 lwb 350 5 speed nv3500 3.73 rear end 2.5" Front Drop and 4" in the back Edelbrock perfomer rpm manifold Edelbrock 600 cfm carb Headmen headers

02-04-2004, 09:57 PM	#4
D.W.jr Registered User Join Date: Jun 2001 Location: Richmond,VA, USA Posts: 106	more info its a m-21 I think, I know its not a m-22 rockcrusher numbers are as follows 3884685 3831704 and 3846429 on tailshaft no repairs to the case and no boogered up mounts 804-795-5697 for more info. Thanks Dennis __________________ 69 custom camper special 4x4 1969 K5 blazer 1972 short step 4wd factory air gmc

02-05-2004, 01:07 AM	#6
fast_dev Registered User Join Date: Dec 2000 Location: Ringtown,PA Posts: 555	1 groove is always an m-21, the other two switched at a certain year (not sure think it was 65 or 66) later m-20's have no grooves. somewhere i found this info, might be chevrolet by the numbers book, it tells you the best way is to count teeth on the unput gear. both of my m-20's have no grooves. Dev. __________________ 68 chevy 406 small block, budget drag racer, new best e.t 11.91 @112 67 nova numbers matching 327 4 speed 13.6 @ 102mph 70 longhorn c-30 402/4 speed 70 c-10 swb 402, muncie 4 speed 94 s-10 350/th350 3:73 posi 71 c-20 402/th400 towrig for racetruck. 72 4wd lifted on 35's 72 350/3 speed winter beater

02-05-2004, 01:17 AM	#7
bad 71 chevy Registered User Join Date: Jun 2000 Location: Omaha NE 68122 Posts: 637	This is what i found out on the numbers do not know what it all means but hear it is 3831704-1963 only small 6207nr front bearing, 7/8" bore 3846429-1963-1965 regular thick web driver speedo 27 spline 3884685 cover issued with "584" tail stud type shift shafts like i said do not know what it all means __________________ 71 Chevy C/10 lwb 350 5 speed nv3500 3.73 rear end 2.5" Front Drop and 4" in the back Edelbrock perfomer rpm manifold Edelbrock 600 cfm carb Headmen headers

02-04-2004, 09:40 PM	#3
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Is it a M-20, 21, or 22? Jim

02-04-2004, 10:26 PM	#5
Olden Days Living In The Past Join Date: Nov 2003 Location: Rockies Posts: 709	how many circular grooves on the input shaft? 1 or 2? 1 groove = m21 2 grooves = m20 0 grooves =m22

02-05-2004, 04:25 PM	#8
Mike Culpepper Red Join Date: Feb 2003 Location: Llano... Texas Hill Country Posts: 448	Don't know if this helps or not? http://lib1.store.vip.sc5.yahoo.com/...IDComplete.pdf Probably not enough info here actually Mike __________________ '72 Cheyenne LWB 350/350 "The sun don't shine on the same dog's ass all the time." - Catfish Hunter (commenting on why he was not able to pitch another perfect game).



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