How long will an M22 Muncie hold up to 500hp?

[nana1962409]

No mine isn’t I forgot that part as well.

 

[Rickys61]

That transmission James listed is pretty much exactly what I have except that one looks like it has a aluminum mid plate where mine is steel.

That’s like the one I roasted 1st gear with Nate.. 2:88, iron case, steel mid plate and Pro shifted....

 

[nana1962409]

I remember you broke yours and that is why I’m a little nervous about mine Ricky!

 

[Don Jacks]

Put a good th400 in there and don't worry about it!!!!

 

[Rickys61]

I remember you broke yours and that is why I’m a little nervous about mine Ricky!

Just don’t get it to hook.. you will be fine..

 

[La Hot Rods]

Put a good th400 in there and don't worry about it!!!!

I have been nerves about the th350 I have been running.

 

[Don Jacks]

TH350's can be made to hold a bunch of power but it's costly.Better to start with something strong.

 

[nana1962409]

We will see how it goes at 42 Ricky! Don I know you like the autos and I have I believe 3 th400s sitting and one was in my 62 at one time. But the car is just so much more fun with a 4 speed!

 

[Ishiftem]

Manual = Auto =

 

[La Hot Rods]

A time slip is a time slip. the four gear is like building another engine.

 

[Don Jacks]

It's not that I dislike sticks,I love them.I hate the constant breaking stuff that goes with them a lot more.

 

[Ishiftem]

There are good enough parts now that breaking parts is a thing of the past. However, those good parts do come at a hefty price compared to an auto.

 

[409gang]

My Muncie first gear after switching from drag radials to slicks. Now, mine didn’t have the M-22 style straighter cut gears, but I’ve always been told that wasn’t so much to make stronger gears, but to keep them from trying to walk out of the case, and with the Auto Gear case I want too worried about that. Somebody correct me on that if I’m wrong.

Boy does that look familiar! I have the same thing in my Nova, a G-Force G101A with a McLeod soft lock clutch.

 

[409gang]

When you do get ready for a G-Force ask them if they have any pre-owned cases. They did a used, factory checked case with new guts for me. Saved about $1000

The other BIG advantage of the G-Force is gear selection. Going from a 2.56 first to a 3.17 made a huuuuge difference getting the car moving. Then tweaking the other gears to suit you. I had concerns on the 1-2 gear spacing but it turned out to be a non issue.

I went to the PRI show and bought it there, they like CASH and shipped it for free.

 

[409gang]

If you find a used G-Force make sure its a G101-A and not a G101, The G101-A has the handcuff and that is where the transmission gets all its strength. The handcuff holds the mainsheet and the countershaft together, without it the mainsheet rises under load causing tooth separation and breakage.

 

[409gang]

How about a ford top loader, stouter than the muncie and st10
I have one that has been pro shifted I'm going to try.

If your drag racing with 450HP + and have good tires (slicks) it will probably break, its an OEM synchronized transmission with helical cut gears that was designed for street use. It may be a little more stout than a T10 or Muncie but its still questionable for racing. Sell it to a ford guy for a restoration and put the money towards a gearbox that was designed for drag racing.

 

[409gang]

Just remember the L 78 L 79, ZL1, Yenco Super cars, LS 6 70 Chevelle all had Muncies in them but had bias ply tires on them too. Lol

Some of those super cars had Muncie M22's in them, they had a gear set with less of an angle on the helical cut gears but still were not straight cut like a transmission designed for drag racing. M22's are expensive and harder to find, you can buy M22 gear sets and build one from a m20 or m21 transmission but they still break under extreme conditions.

 

[La Hot Rods]

If your drag racing with 450HP + and have good tires (slicks) it will probably break, its an OEM synchronized transmission with helical cut gears that was designed for street use. It may be a little more stout than a T10 or Muncie but its still questionable for racing. Sell it to a ford guy for a restoration and put the money towards a gearbox that was designed for drag racing.

I'll sell it to a ford guy after I scatter it.

 

[Iowa 409 Guy]

Just don’t get it to hook.. you will be fine..

That's when mine went at Great Bend. Mine had the mid support and special gears from Italy. Don Pearson built it. He's from Indiana. I believe I got 4 or 5 years out of it.

Get a Saginaw.......

 

[409gang]

That's when mine went at Great Bend. Mine had the mid support and special gears from Italy. Don ??? somebody built it. He's from Indiana. I believe I got 4 or 5 years out of it.

Get a Saginaw.......

Now thats funny, a friend of mine had 71 or 72 Nova 350 4 speed back in the early 70's. When it broke the bottom of the case blew off and left a huge oil patch of 90 weight on the road that stayed there for months, every time we drove by that spot we would laugh.