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Username Post: muncie m20 tranny question
57TOMMY
Frequent Contributor
Posts 1204
57TOMMY
06-16-12 09:04 PM - Post#2238063    

I have a friend with a muncie M20 tranny that I am going to buy. What I am looking for are pics of how the shifter comes through the floor. Is it off to the side of the hump? Anybody out there still running a 4 speed ?
Let me know how you like it & what you don't like about it
Thanks
Tommy
Stand up for what is right ,even if you stand alone.


awsum55
Senior Member
Posts 8838
awsum55
06-17-12 12:08 AM - Post#2238115    

It's a great transmission, I run one in my '63 Corvette. It has a nice low 1st gear (2.52) and it can handle a modest amount of HP.
Five things that you cannot recover in life:

* The Stone after it's thrown
* The Word after it's said
* An Occasion after it's missed
* The Time after it's gone
* A person after they die

6-bangertim
"2nd Year" Silver Supporting Member
Posts 1892
06-17-12 12:28 AM - Post#2238117    

The HURST tri-five shifter is universal for ALL the 4-speeds - T-10, Muncie and Saginaw. What IS different is the "Installation Kit" with the shift rods and mounting hardware, sold seperately. I'd say that my shifter sits pretty close to center on the hump in my '57, with a Saginaw-3.11.

The Hurst is a PITA to install, as the stick doesn't unbolt from the shifter body. The stick comes forward 2-1/2 - 3" to clear the bench seat, then curves upward and back. I just kinda guessed where I needed to start cutting the floorboard with a tape measure and a paint stick. I never thought until now to make a cardboard template of the shifter AND STICK to make it less of a guesstimate. Once I got the shifter in the car, it was just a matter trimming the hole big enough to clear the stick for reverse and the forward gears.

To do it again, I would make a cardboard cut-out of the shifter and stick - at least you can bend it around under the car! Well worth the effort for the fun of shifting a HURST on a 4-speed!!!

Good Luck, Tim
Too Poor to Restore...My Nifty 150!
Proud owner of MISS NOVEMBER - 2011 Tri-Five Calender

57TOMMY
Frequent Contributor
Posts 1204
57TOMMY
06-17-12 06:13 AM - Post#2238163    

Thanks guys, looking forward to shifting again
Stand up for what is right ,even if you stand alone.


Pistol
"11th Year" Silver Supporting Member
Posts 3561
Pistol
06-17-12 07:09 AM - Post#2238185    

I'm not sure which shifter you need to make the stick part removable but here is the stick part

http://www.summitracing.com/parts/HUU-3913780/


Here is my 4-speed setup with the shifter





I modded my floor to have the boot and plate to sit straight, the boot is from a Mazda handbrake





here is the mod area








here is the section I cut out


Pete
Awl speeling misteaks r myn
57 BelAir 2DRHT My-Pics

57TOMMY
Frequent Contributor
Posts 1204
57TOMMY
06-17-12 07:36 AM - Post#2238198    

great pics,& thanks for the link to the shifter Thanks Peter. Any concerns or surprises I should look our for? I am going from a 700r4 to the muncie. I know I will have to switch the cross member, Any advise
Thanks all
Tommy
Stand up for what is right ,even if you stand alone.


6-bangertim
"2nd Year" Silver Supporting Member
Posts 1892
06-17-12 10:16 AM - Post#2238245    

What are your gears and tire size Tommy? I was just thinking that a GEAR VENDERS overdrive would be pretty cool on the back of the Muncie!

GOOD pics Pete!

- Tim
Too Poor to Restore...My Nifty 150!
Proud owner of MISS NOVEMBER - 2011 Tri-Five Calender

Mowman
Member
Posts 390
06-17-12 10:36 AM - Post#2238247    

Here is what mine looks like.





57TOMMY
Frequent Contributor
Posts 1204
57TOMMY
06-17-12 12:21 PM - Post#2238290    

27 inch tires ,3.08 gears so I dont think my RPM's will be too bad at 65 - 70 mph...around 2500 to 2600 if all of the calculators are correct
Stand up for what is right ,even if you stand alone.


MikeB
Senior Member
Posts 9389
MikeB
06-17-12 04:12 PM - Post#2238361    

Shifter in 1st gear with seat all the way back.

Mr. Gasket boot with trim ring under carpet.



Shifter works with lots of transmissions. There are two kits for Muncies depending on shift shaft type -- stud & nut, or bolt. Throw away the nylon bushings and use steel bushings.

My floor cutout is around 6"-8" long and 2" wide. The bottom of the shifter will protrude thru the floor in 2nd and 4th gears.

Real Hot Rods have a Clutch!

1955 210 2dr: 327, Brodix IK180 heads, Jones cam, Muncie M20, Wilwood front brakes

1969 C-10 pickup: 350, TH350

My car pictures


57TOMMY
Frequent Contributor
Posts 1204
57TOMMY
06-17-12 05:46 PM - Post#2238414    

I like that look thanks Mike
Stand up for what is right ,even if you stand alone.


56sedandelivery
Valued Contributor
Posts 2601
06-17-12 05:48 PM - Post#2238416    

  • 6-bangertim Said:
The HURST tri-five shifter is universal for ALL the 4-speeds - T-10, Muncie and Saginaw. What IS different is the "Installation Kit" with the shift rods and mounting hardware, sold seperately. I'd say that my shifter sits pretty close to center on the hump in my '57, with a Saginaw-3.11.

The Hurst is a PITA to install, as the stick doesn't unbolt from the shifter body. The stick comes forward 2-1/2 - 3" to clear the bench seat, then curves upward and back. I just kinda guessed where I needed to start cutting the floorboard with a tape measure and a paint stick. I never thought until now to make a cardboard template of the shifter AND STICK to make it less of a guesstimate. Once I got the shifter in the car, it was just a matter trimming the hole big enough to clear the stick for reverse and the forward gears.

To do it again, I would make a cardboard cut-out of the shifter and stick - at least you can bend it around under the car! Well worth the effort for the fun of shifting a HURST on a 4-speed!!!

Good Luck, Tim




My shifter tower is a Hurst, but originally from a MOPAR Pistol Grip in a Challenger. I gave the shift lever to a MOPAR friend, drilled it for the bolt on style holes, as it was a push-in style originally, traded for the right shifter rods and arms, and then bought a Hurst P/N 238-8620 Tri-Five bench seat shift lever. Everything except the new lever were used parts. I can now unbolt the shifter lever from the tower and pull the trans with the shifter tower/linkage intact. All I really have in the setup is what the new shifter lever cost ($$$). I just could'nt see having to remove the shifter tower to remove the trans. Butch/56sedandelivery.
busyguy8
Dedicated Enthusiast
Posts 5647
busyguy8
06-17-12 11:08 PM - Post#2238556    

so ya really gonna do it, Tommy?
Aquired a '56 2dr hdtp BelAir on 6/9/05!
Link to my pics!
-bill

MikeB
Senior Member
Posts 9389
MikeB
06-18-12 03:52 AM - Post#2238570    

  • 56sedandelivery Said:

My shifter tower is a Hurst, but originally from a MOPAR Pistol Grip in a Challenger. I gave the shift lever to a MOPAR friend, drilled it for the bolt on style holes, as it was a push-in style originally, traded for the right shifter rods and arms, and then bought a Hurst P/N 238-8620 Tri-Five bench seat shift lever. Everything except the new lever were used parts. I can now unbolt the shifter lever from the tower and pull the trans with the shifter tower/linkage intact. I just could'nt see having to remove the shifter tower to remove the trans. Butch/56sedandelivery.



I'm pretty sure the 55-57 kit had had a bolt-on bench seat shifter handle back in the 60s-70s. It was much easier to install than the new welded-together setup.

Butch, will you post pictures of yours? I'd like to see how the shifter handle connects to the shifter mechanism.
Real Hot Rods have a Clutch!

1955 210 2dr: 327, Brodix IK180 heads, Jones cam, Muncie M20, Wilwood front brakes

1969 C-10 pickup: 350, TH350

My car pictures


Pistol
"11th Year" Silver Supporting Member
Posts 3561
Pistol
06-18-12 04:39 AM - Post#2238578    

Butch is the shifter you have a 3916790 http://www.hurst-shifters.com/?wpsc-product=compet...
Pete
Awl speeling misteaks r myn
57 BelAir 2DRHT My-Pics

57TOMMY
Frequent Contributor
Posts 1204
57TOMMY
06-18-12 06:37 AM - Post#2238617    

Thanks guys . Yep B Monte called Saturday, he has the M20 out of his Z. I told him after Hot August Nights I will call him.
Tommy
Stand up for what is right ,even if you stand alone.


tri5ss
"7th Year" Silver Supporting Member
Posts 2551
tri5ss
06-18-12 11:09 AM - Post#2238726    

  • 57TOMMY Said:
great pics,& thanks for the link to the shifter Thanks Peter. Any concerns or surprises I should look our for? I am going from a 700r4 to the muncie. I know I will have to switch the cross member, Any advise
Thanks all
Tommy



The 700R4 is longer than the Muncie so you will need a new driveshaft. I don't remember the exact dimensions for the Muncie but the 700R4 is 30.75in and I believe the Muncie is about 3 inches shorter.

From the Hemmings website:

"On GM Turbo 350, 200-4R and the 700-R4 automatics, the transmission mount is the same as the one used for the Muncie."

If the input shaft has 10 splines, then the output shaft should be 27, same as your 700R4.

Good luck with the install. I took a Muncie out and put in a 200 4R and really miss the Muncie.

Randy
Tri5SS
'55 210, GMPP ZZZ, 200 4R, 12 bolt 3.73 posi, CPP P/S, ABS D/B.

http://www.picturetrail.com/tri5ss

Nothing is foolproof to a sufficently talented fool!

57TOMMY
Frequent Contributor
Posts 1204
57TOMMY
06-18-12 12:32 PM - Post#2238774    

Thanks Randy ,yep ready to shift again
Stand up for what is right ,even if you stand alone.


cnbell
"10th Year" Silver Supporting Member
Posts 8682
cnbell
06-18-12 01:05 PM - Post#2238788    

Tommy, don't you have a 700r4 in it ?

Craig

http://www.picturetrail.com/cnbell

57TOMMY
Frequent Contributor
Posts 1204
57TOMMY
06-18-12 06:59 PM - Post#2238923    

yep, 700r4 bowtie setup, works fine I just want a change.
By the way Craig, how have you been? Is that a Nomad I see you working on
Stand up for what is right ,even if you stand alone.


busyguy8
Dedicated Enthusiast
Posts 5647
busyguy8
06-18-12 08:55 PM - Post#2238957    

Tommy,
Monte called me and got your number about the tranny. I'm excited you're goin for it!
-b
Aquired a '56 2dr hdtp BelAir on 6/9/05!
Link to my pics!
-bill

56sedandelivery
Valued Contributor
Posts 2601
06-18-12 10:53 PM - Post#2238974    

  • MikeB Said:
  • 56sedandelivery Said:

My shifter tower is a Hurst, but originally from a MOPAR Pistol Grip in a Challenger. I gave the shift lever to a MOPAR friend, drilled it for the bolt on style holes, as it was a push-in style originally, traded for the right shifter rods and arms, and then bought a Hurst P/N 238-8620 Tri-Five bench seat shift lever. Everything except the new lever were used parts. I can now unbolt the shifter lever from the tower and pull the trans with the shifter tower/linkage intact. I just could'nt see having to remove the shifter tower to remove the trans. Butch/56sedandelivery.



I'm pretty sure the 55-57 kit had had a bolt-on bench seat shifter handle back in the 60s-70s. It was much easier to install than the new welded-together setup.

Butch, will you post pictures of yours? I'd like to see how the shifter handle connects to the shifter mechanism.




My digital camera is currently "T/U"; it's got 2 large dots in the viewer. I had to drill 2 holes for the bolt-on stick, as the shifter tower was originally a push-in stick with the MOPAR pistol grip. I also had to use a press to "squash" the reciever in a little and use spacers; it's tight/solid. Butch/56sedandelivery.
56sedandelivery
Valued Contributor
Posts 2601
06-18-12 11:00 PM - Post#2238976    

  • Pistol Said:
Butch is the shifter you have a 3916790 http://www.hurst-shifters.com/?wpsc-product=compet...




My shifter tower is an original factory equipment MOPAR/Hurst Pistol Grip that I gave the shift lever away on, drilled some holes, and bought the bench seat style tri-five shifter lever. The only number on the tower, other than the 3 patent numbers, is 6356. I've not actually seen a bench seat style shifter lever for a tri-five that was'nt a welded on stick; and was surprised to see they even made a bolt-on stick; bought it off E-Bay new. The reverse lever is longer and somewhat curved, but the reverse rod I used had enough threads to adjust it correctly on the MOPAR/Hurst. Butch/56sedandelivery.
57TOMMY
Frequent Contributor
Posts 1204
57TOMMY
06-19-12 06:01 AM - Post#2239046    

Hey Busy
I am glad you are excited I just hope you stay that way when I ask you to come over & help me
Tommy
Stand up for what is right ,even if you stand alone.


2Loose
"9th Year" Platinum Supporting Member
Posts 3875
2Loose
06-19-12 11:14 AM - Post#2239141    

Don't know if this will help ya much or not, but here it is:

I had an M20 I was going to use in the '55 gasser project, but then I ran across an early Doug Nash 5 speed in good condition, the Hurst shifter lever for that had to be cut just above the bolt holes and rewelded in a more forward leaning position to clear the bench seat. But it is positioned easily at hand for shifting, it's a comfortable position. The position of the shifter mechanism under the floor tunnel looks to me to be very close to if not exactly the same as the Hurst for the M20 would have been. I gave my M20 to a buddy who is building up a nice cruiser homebuilt 2,000 lb roadster with a mild 283, the M20 will be perfect for him. FWIW, here's a pix of how the shifter fit came out in my '55 with the Doug Nash and the bench seat:


The cardboard template is for the vinyl boot I sewed up for it. Here's how it looks with the boot installed before I put the seat back in:



The cord running up the tunnel from the shifter is for the line lock button mounted just below the shifter knob. It is amazing how many times I use that button to hold the car at a stop sign or a stop light when it wants to roll forward or backward while putting it in gear to get going. Way easier than working with the parking brake!

Good luck with yours, show us some pix as it goes in.
Aloha,
Willy
awsum55
Senior Member
Posts 8838
awsum55
06-19-12 03:05 PM - Post#2239201    

  • Quote:
It is amazing how many times I use that button to hold the car at a stop sign or a stop light when it wants to roll forward or backward while putting it in gear to get going. Way easier than working with the parking brake!



That statement would make people that don't know your history believe you don't know how to drive a stick.
Five things that you cannot recover in life:

* The Stone after it's thrown
* The Word after it's said
* An Occasion after it's missed
* The Time after it's gone
* A person after they die

REBORN55
Very Senior Member
Posts 2090
REBORN55
06-19-12 05:17 PM - Post#2239251    

This what mine looks like with the late model M-20

Ken http://www.picturetrail.com/reborn55

MikeB
Senior Member
Posts 9389
MikeB
06-19-12 05:36 PM - Post#2239258    

Ken,

Nice looking interior. You don't see many that color . Same goes for the paint.
Real Hot Rods have a Clutch!

1955 210 2dr: 327, Brodix IK180 heads, Jones cam, Muncie M20, Wilwood front brakes

1969 C-10 pickup: 350, TH350

My car pictures


cnbell
"10th Year" Silver Supporting Member
Posts 8682
cnbell
06-19-12 06:05 PM - Post#2239265    

Hi Tommy,

Yeah, bought the Nomad around Thanksgiving, needs a full resto. Not sure of the direction yet, hopefully I'll figure that out as I go....

Craig

http://www.picturetrail.com/cnbell

busyguy8
Dedicated Enthusiast
Posts 5647
busyguy8
06-19-12 07:11 PM - Post#2239287    

anytime Tommy!
Aquired a '56 2dr hdtp BelAir on 6/9/05!
Link to my pics!
-bill

57TOMMY
Frequent Contributor
Posts 1204
57TOMMY
06-19-12 08:12 PM - Post#2239304    

Nice Ken, Is that with your seat in the normal driving position?
Stand up for what is right ,even if you stand alone.


2Loose
"9th Year" Platinum Supporting Member
Posts 3875
2Loose
06-19-12 08:25 PM - Post#2239310    

  • awsum55 Said:

That statement would make people that don't know your history believe you don't know how to drive a stick.

Yah, I hear ya....
You wouldn't believe the number of times I took my foot off the brake and hit the gas and let the clutch out on a steep uphill stoplight (there's a couple of those here on "upcountry maui") and left in a cloud of smoke!!! The cops around here take a real dim view of that....

But that is just so easy to do in this car, ahem!! So for a bit I just started sitting there slipping the clutch to hold it, until I started smelling clutch smoke, ok, that ain't gonna work....

Next it was pull the parking brake, which is a rod style brake lever mounted on the side of the driver's seat next to the door, it works fine, except that I tend to pull it on pretty damn tight, and then sometimes it don't wanna let go when I wanna go, imagine guys honkin' behind me as I sit there, slippin' the clutch and trying to get that damn brake released....

So one day, sittin' in traffic, I decided, "wonder if that line lock will work for this..."
hell, it works so well, I can sit there at the light, steep uphill, I know the lite well, holdin' the regular brakes, and just before I know it will turn green, hold the line lock button on the stick, foot on the gas, give it a slight amount, lite turns green, and I am goooone!

That only works if I am the first in line, I can get that car motivatin' and movin' up the mountain so fast the rest of those guys disappear in the rear view mirror, and no smoke, no cause for the cops to come after me, been there done that, homie don't need to do that no more.....

Where this takes place the speed limit is 55, so I get to 60 in second real, real quick, shift to 5th and hold it there....
Oh Yeah....
Aloha,
Willy

OL55
Contributor
Posts 370
OL55
06-20-12 07:08 PM - Post#2239642    

  • Quote:
give it a slight amount, lite turns green, and I am goooone!

so I get to 60 in second real, real quick, shift to 5th and hold it there....
Oh Yeah....
Aloha,
Willy




Doesn't the Muncie take the factory length driveshaft with no mods?


Larry
REBORN55
Very Senior Member
Posts 2090
REBORN55
06-22-12 05:42 PM - Post#2240288    

Thanks Mike--color combo is just a little different but we like it a lot
Ken http://www.picturetrail.com/reborn55

GaryC
Very Senior Member
Posts 2648
GaryC
06-22-12 05:44 PM - Post#2240289    


I run an M20 in my '57. There's nothing not to like :> Sorry I don't have any floor pictures.


1957 Chevrolet Bel Air coupe, 300hp 327, M20 4 speed

REBORN55
Very Senior Member
Posts 2090
REBORN55
06-22-12 05:48 PM - Post#2240291    

That is where the seat sits when I drive it. Actually it is 3/4 inches further back than stock--drilled out the extra factory hole for my 6'6" frame. Can't go too much forward though. The late model Muncies don't have as many mounting holes for the shifter as the earlier ones do. not much to deal with. Good luck
Ken http://www.picturetrail.com/reborn55

REBORN55
Very Senior Member
Posts 2090
REBORN55
06-22-12 05:49 PM - Post#2240292    

The later model fine splined Muncies are a little longer the the earlier models--had to shorten my drivshaft about 3/4 of an inch
Ken http://www.picturetrail.com/reborn55

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