Okay guys here is the sccop. I ordered a Hurst Comp+ shifter and rods from Summit Racing. The part number for the shifter is HUU-3918014 and the linkage part number is HUU-3733163. When I was talking with the guy at Summit he stated that there is an external difference between the M-21 & M-22. His documentation showed him that an M-21 three studs that you would use a nut to hold the shift linkake in place (which mine has) he was also saying that the M-22 was set up in reverse, meaning that you bolted the linkage to the M-22. Is this the case? I thought that the only difference between the M-21 & M-22 was the guts of the tranny.

Next, I want to order the correct part for a 1970 Chevelle Console car for a Muncie M-21. I believe the 1970 had a MUNCIE stamped handle. Looking on OPGI the part is there but it does not differ between M-21 & M-22. I would like to have the correct for the car part for this resto. If anyone has any info on the proper part and where to get it I would appreciate it.

Thanks
Mike

The '70 had a Muncie stamped handle, because the whole shifter assembly was made by Muncie. The crossmember had an additional bracket, and the shifter bolted to the bracket/crossmember assembly. This seemed like a good idea, except for torque. The engine/tranny would torque up sideways, so the shifter followed suit, and shifting gears was hard. The majority were swapped out for Hurst shifters. You can buy a repro shift arm, and drill holes to mount it up to a Hurst shifter, (Comp Plus). That is what most poeple I know have done. Just need to buy the correct arm for your layout, Buckets/console or bench seat.

Ground Up has the arms advertised. They are $69.

Thanks for the info. I think I will buy the Comp Plus like I had planned. However, what about the difference between the m-21 & m-22 with the shift linkage? Is it true that the m-21 has the posts to use a nut and the m-22 has a hole for a bolt to mount the linkage?

Thanks

Okay guys here is the sccop. I ordered a Hurst Comp+ shifter and rods from Summit Racing. The part number for the shifter is HUU-3918014 and the linkage part number is HUU-3733163. When I was talking with the guy at Summit he stated that there is an external difference between the M-21 & M-22. His documentation showed him that an M-21 three studs that you would use a nut to hold the shift linkake in place (which mine has) he was also saying that the M-22 was set up in reverse, meaning that you bolted the linkage to the M-22. Is this the case? I thought that the only difference between the M-21 & M-22 was the guts of the tranny.

Next, I want to order the correct part for a 1970 Chevelle Console car for a Muncie M-21. I believe the 1970 had a MUNCIE stamped handle. Looking on OPGI the part is there but it does not differ between M-21 & M-22. I would like to have the correct for the car part for this resto. If anyone has any info on the proper part and where to get it I would appreciate it.

Thanks
Mike

The guy at Summit is wrong. The 1963 to 1968 Muncie 4-speed transmissions can be identified from later models by the way the transmission arms attach. Early Muncie side covers had a stud and the shift arm attached with a nut on the stud while the 1969 and later model side covers had a hole and the shift arms attached with a bolt. FWIW, the shifter only (#3918104) is correct for 68-72 Chevelle/El Camino but the parts kit (#3733163) is for 64-68 Muncie - correct for 69-72 is #3737834. Hurst does show a difference in the transmissions but it's in the tail shaft, not how the arms are attached. One (other) nice thing about the Hurst Comp Plus is you can mix/match the shifter and kit. I had a 69 Muncie in my 67 - used the 64-67 shifter (#3918104) and the later kit (#3737384).

Straight from the Hurst product catalog:
http://photos.chevellestuff.com/albums/userpics/10001/hurst1.jpg
http://photos.chevellestuff.com/albums/userpics/10001/muncie_early.jpg
http://photos.chevellestuff.com/albums/userpics/10001/muncie_late.jpg
http://photos.chevellestuff.com/albums/userpics/10001/muncie_m22.jpg

I have had the same competition plus Hurst shifter on a M-20, M-21, & finally M-22. The same 4 speed shifter will bolt on to all the Muncie 4 speeds.

The guy at Summit is wrong. The 1963 to 1968 Muncie 4-speed transmissions can be identified from later models by the way the transmission arms attach. Early Muncie side covers had a stud and the shift arm attached with a nut on the stud while the 1969 and later model side covers had a hole and the shift arms attached with a bolt. FWIW, the shifter only (#3918104) is correct for 68-72 Chevelle/El Camino but the parts kit (#3733163) is for 64-68 Muncie - correct for 69-72 is #3737834. Hurst does show a difference in the transmissions but it's in the tail shaft, not how the arms are attached. One (other) nice thing about the Hurst Comp Plus is you can mix/match the shifter and kit. I had a 69 Muncie in my 67 - used the 64-67 shifter (#3918104) and the later kit (#3737384).

Straight from the Hurst product catalog:
http://photos.chevellestuff.com/albums/userpics/10001/hurst1.jpg
http://photos.chevellestuff.com/albums/userpics/10001/muncie_early.jpg
http://photos.chevellestuff.com/albums/userpics/10001/muncie_late.jpg
http://photos.chevellestuff.com/albums/userpics/10001/muncie_m22.jpg

And you, Dale, are 100% correct. Where would folks be without the vast technical resources of TC?

And you, Dale, are 100% correct. Where would folks be without the vast technical resources of TC?

Shipping stuff back to Summit/Jeg's ? Seriously, appreciate it Dave and I'm sure each and every one one of us gets as much, if not more, than we give. :thumbsup:

Dale,

I guess I am either missing something here. Your images show that the arms connect with a bolt. On my 70 Muncie there are studs for a nut not bolt holes. Not sure what is going on here bu maybe I have the wrong side panel?????? I know that the Muncie decoded is a 1970 M-21. What I gather from what you have posted above is that there should be bolt holes. I bought this Muncie on EBay from a guy that had it rebuilt from Midwest Muncie. I have always heard that they are pretty reliable. I did end up with the shifter linkage number #3733163. So should the 1970 Muncie have 2 studs on the side panel or should there be 2 holes to accept a bolt? I am getting a little confused here. On the Summit note, I have had so many wrong parts sent to me from them and have had to send many back. Now I am understanding that I am going to have to send the linkage they sent me back for the correct?? one.

Thanks
Mike

Dale,

I guess I am either missing something here. Your images show that the arms connect with a bolt. On my 70 Muncie there are studs for a nut not bolt holes. Not sure what is going on here bu maybe I have the wrong side panel?????? I know that the Muncie decoded is a 1970 M-21. What I gather from what you have posted above is that there should be bolt holes. I bought this Muncie on EBay from a guy that had it rebuilt from Midwest Muncie. I have always heard that they are pretty reliable. I did end up with the shifter linkage number #3733163. So should the 1970 Muncie have 2 studs on the side panel or should there be 2 holes to accept a bolt? I am getting a little confused here. On the Summit note, I have had so many wrong parts sent to me from them and have had to send many back. Now I am understanding that I am going to have to send the linkage they sent me back for the correct?? one.

Thanks
Mike

I don't profess to be a Muncie expert by any means but the photos and verbiage are straight from Hurst's catalog. I don't know if the two sideplates are interchangeable but very well could be. The 69 and later Muncie uses bolts to hold the shifter arms on where 68 and earlier used studs and nuts. First 7-digit number is shifter only (handle/tower/etc.) and the second is for the Installation Kit (shift arms/rods/clips/etc.) If your current trans has a stud that requires a nut to attach the arms I'd say you need the eariler 373-3163 kit.

Dale,

So do think that it could have been possible that Midwest Muncie placed the incorrect side plate on. I also am not sure whether or not the two are interchangable. I will have to take a look at where the numbers are on the Muncie. It has been a while but I recall the numbers being on the main body of the tranny.

Mike

Are you talking about casting numbers or a partial VIN? Here's what I have in the way of casting numbers (http://www.chevellestuff.com/generic/muncie_casting_numbers.htm)
Main Case
3831704 1963 Only small 6207NR Front Bearing ,Pat. Pending, 7/8" Bore 3839606 1963 - 1964 Regular Bearing Pat. Pending, 7/8"
Bore
3864_____ 1964 Milled off last 3 digits 7/8" Bore Patent Pending
3851325 1964 - 1965 7/8" Bore Patent Pending Mostly 1964
3851325 1964 – 1965 7/8" Bore Patent Number
3885010 1966 - 1967 1" Bore Patent Number
3925660 1968 – 1970 1" Bore Patent Number
3925661 1970 – 1974 (some early 1975 cars) 1" Bore Patent Number

Tail Housing
3831731 1963 "Thin Fin Tail" Driver speedometer 27 spline
3846429 1963 "Thin Fin Tail" Driver speedometer 27 spline
3846429 1963 - 1965 Regular thick web, driver speedometer, 27 spline
9779246 1964 – 1965 Pontiac Catalina Long Tail Driver Speedo 27 Spline
3857584 1966 – 1970 Passenger side speedometer, 27 spline
3978764 1970 – 1974 passenger speedometer, 32 spline output

Side Cover
3831707 1963-1965 Early side cover stud type shift shafts
3884685 Cover issued with "584" tail stud type shift shafts
3950306 Short boss with bolt on type shift shafts - no switches
3952642 Long boss bolt on type w/ TCS switch on 3-4
3952648 Short boss bolt on type w/ TCS switch on 3-4
335308 Long boss bolt on type with neutral safety switch. Some have a boss for the switch that is cast but not machined on 1-2.

I am referring to the date coded number. I will have to see what other numbers I have on the tranny. The numbers that you provided should help.

Thanks
Mike