Amc 20

[driver007]

Ok I am going to switch out my rear end to a one peice rear end. I do not understand what keeps the axle in the tube. Do the bearings press on the axle so tight that is what keeps the one peice axle on? How do you know how far to press the bearings on the axle. Is there any threads or pics of the proccess? I tired to find but was not able to find any. Any help would be great.

 

[Old Dog]

Ok I am going to switch out my rear end to a one peice rear end. I do not understand what keeps the axle in the tube. Do the bearings press on the axle so tight that is what keeps the one peice axle on? How do you know how far to press the bearings on the axle. Is there any threads or pics of the proccess? I tired to find but was not able to find any. Any help would be great.

The brake backing plate holds the axles in.
The bearings go all the way down and the retaining ring gets pressed down to the bearing.

 

[driver007]

Thanks for moving my thread I noticed it was not right after I hit the button. Old dog does the backing plate go on then the bearing pressed onto the axle? The backing plate holds the bearing on. what keeps the axle from not working off the axle?

 

[johnnyreb]

Hey driver007. I'm glad you asked that question. I was figuring that, but didn't want to ask.
I'm getting ready to gather parts to install rear brakes on my AMC20

 

[driver007]

I do not know why but I am having a hard time with the mental picture of what is holding the axle on.

 

[Old Dog]

Maybe this will help.http://www.moserengineering.com/moser/wp-content/uploads/2010/04/JeepInstructions.pdf

 

[driver007]

I was reading their install. The bearings are pressed on with a ring. Is the press fit the only thing keeping them from coming loose?

 

[Old Dog]

the retaining ring holds the bearing on.(press fit)
The 4 bolts that hold the brake backing plate on is what holds the axle in
as the bearing is to big to fit through the backing plate.
So yes in a way the retaining ring is what keeps the axle from coming out.
This is a pretty common set-up in a lot of different axles.

 

[driver007]

Thanks Old Dog. I just had a hard time getting it in my head that a pressed on ring is what really is holding the axle from coming out. Have you ever heard of one coming off? there is alot of them out there so it most work. Thanks again

 

[Old Dog]

No, never heard of one coming off. It's a pretty hard press. Anything's possible though.

 

[grozam]

Thanks Old Dog. I just had a hard time getting it in my head that a pressed on ring is what really is holding the axle from coming out. Have you ever heard of one coming off? there is alot of them out there so it most work. Thanks again

I had a 62' Pontiac le mans that had a transaxle Transmission that the axle came flying out when rounding a corner . That was real crazy. I know some axles are held in with a c-clip at the gear.

 

[Petescj]

Ive never seen that but Ive seen a few 2 piece axles fail. No fun. Pretty much like having the tire and wheel come off with no chance of re assembly. Your doing the right thing.

Thanks Old Dog. I just had a hard time getting it in my head that a pressed on ring is what really is holding the axle from coming out. Have you ever heard of one coming off? there is alot of them out there so it most work. Thanks again

 

[stich]

I'm going to do the same swap on my '49 Willys that has AMC20 axle out of a '79 CJ5 . I see that Moser has different axles for QuadraTrac > I believe I have a Limited slip rear but not sure about QuadraTrac . How do I tell?

 

[Petescj]

The AMC20 that came out of Cjs with a QuadraTrac Transfer Case will have an off set rear. If your differential is in the center it didnt come out of a QuadraTrac Cj.

I'm going to do the same swap on my '49 Willys that has AMC20 axle out of a '79 CJ5 . I see that Moser has different axles for QuadraTrac > I believe I have a Limited slip rear but not sure about QuadraTrac . How do I tell?

 

[PaRenegade]

I was reading their install. The bearings are pressed on with a ring. Is the press fit the only thing keeping them from coming loose?

Yes. If it wasn't for that crucial fit you could pull that axle shaft straight out.