[PIC] How do you remove Muncie 2nd gear?
Thread Starter
Burning Brakes
Joined: Mar 2006
Posts: 915
Likes: 2
From: Lima, OH -- 69 L71 427/435hp
[PIC] How do you remove Muncie 2nd gear?
I'm stumped, and before I attempt smacking on it, I thought I had better ask first.
I have a diagram and I see it has snaprings on each side of the hub, but they seem to just hold the keys in place and has nothing to do with the hub moving. So what's the trick to removing it?
I'm thinking you have to set it vertical between like two boards/metal and smack the spline end to drive it off?
Here's what i'm looking at, its an M21 by the way:
Thanks
__________________
www.youtube.com/69Stingray427
I have a diagram and I see it has snaprings on each side of the hub, but they seem to just hold the keys in place and has nothing to do with the hub moving. So what's the trick to removing it?
I'm thinking you have to set it vertical between like two boards/metal and smack the spline end to drive it off?
Here's what i'm looking at, its an M21 by the way:
Thanks
__________________
www.youtube.com/69Stingray427
Le Mans Master
Joined: Mar 2004
Posts: 7,502
Likes: 1,510
From: Little Rock AR
It would be better to press that stack of parts off. 
The rest of the parts -gear/synchro/blocker ring etc will come off all at the same time. Those (2) "snap rings" as you refer to them are actualy springs that keep pressure on the (3) keys that you have already removed when you pulled the slider off the synchro hub. They do not hold anything on the mainshaft. Pull the springs off and try not to let them bounce away under the bench.
That is what happened when I tried to pull them apart.
Why are you tearing it down?
-Mark.
The rest of the parts -gear/synchro/blocker ring etc will come off all at the same time. Those (2) "snap rings" as you refer to them are actualy springs that keep pressure on the (3) keys that you have already removed when you pulled the slider off the synchro hub. They do not hold anything on the mainshaft. Pull the springs off and try not to let them bounce away under the bench.
That is what happened when I tried to pull them apart.Why are you tearing it down?
-Mark.
Thread Starter
Burning Brakes
Joined: Mar 2006
Posts: 915
Likes: 2
From: Lima, OH -- 69 L71 427/435hp
It would be better to press that stack of parts off.
The rest of the parts -gear/synchro/blocker ring etc will come off all at the same time. Those (2) "snap rings" as you refer to them are actualy springs that keep pressure on the (3) keys that you have already removed when you pulled the slider off the synchro hub. They do not hold anything on the mainshaft. Pull the springs off and try not to let them bounce away under the bench. That is what happened when I tried to pull them apart.
Why are you tearing it down?
-Mark.
The rest of the parts -gear/synchro/blocker ring etc will come off all at the same time. Those (2) "snap rings" as you refer to them are actualy springs that keep pressure on the (3) keys that you have already removed when you pulled the slider off the synchro hub. They do not hold anything on the mainshaft. Pull the springs off and try not to let them bounce away under the bench.
That is what happened when I tried to pull them apart.Why are you tearing it down?
-Mark.
2nd= 1.506
3rd= 1.0
4th= .859
I have a 4.56 rear end and M21, so basically with this conversion i'll have a 3.91 final drive ratio instead of 4.56.
Well, off to the shop, hopefully this comes off today.
Melting Slicks
Joined: Mar 2002
Posts: 2,164
Likes: 7
From: Beringen
be careful
It's been a long time since I did mine, but I don't remember pressing off gears.... In fact the should be rotating freely over the main axle and only connected to it via the sleeves. There are however some clips that retain the gears.
I suggest you carefully inspect it before you start pressing.
As a matter of a fact, they only thing I had to press was the speedo gear.
I suggest you carefully inspect it before you start pressing.
As a matter of a fact, they only thing I had to press was the speedo gear.
Le Mans Master
Joined: Mar 2004
Posts: 7,502
Likes: 1,510
From: Little Rock AR
The alternate method is to drop the end of the shaft down on a block of wood with enough force to cause the stack of parts to slide off the shaft. It is only a slight interference fit and inertia works some times. A press is not always required but it comes in handy when dropping the shaft does not break the parts loose. 
-Mark.
-Mark.
