Swing Axle Long(er) Axle

buggytime · Posted: Tue Mar 06, 2012 12:31 pm Post subject: Swing Axle Long(er) Axle

I recently wore out my Swing Axle transmission and now I am in the process of putting in a rebuilt one. the rebuilt transmission has a set of long axles on it and last night as we were installing it we noticed the stock brake drum didn't sit over the backing plate like a normal one would (long axles). I purchased the larger spacers and I just don't think (hoping) that I installed it correctly.

has anyone installed long axles? and what did you do?

I know pictures help but I didn't take any last night.

Any Questions/Comments/Concerns are greatly appreciated.

Thanks.

joescoolcustoms · Posted: Tue Mar 06, 2012 12:35 pm Post subject:

The spacers to convert the early drums, short axle, short spline to long axle, long spline go on after the drum to space out the castle nut into the thread area.

Where did you put the spacer?
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Dale M. · Posted: Tue Mar 06, 2012 12:43 pm Post subject:

Its not a long axle problem its a spline problem as "Joe" says, if you have short spline drums you need spacer between drum and castle nut...

Dale
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wythac · Samba Member Joined: August 02, 2004 Posts: 2791

Yup, there are short shorts, short longs, long shorts and long longs.

Put a mic on any spacers you buy and make sure they are of a consistent width. I damaged a set of axles by using some that were of substandard tolerance.

lostinbaja · Posted: Tue Mar 06, 2012 7:17 pm Post subject:

For spacers between the drum snout and the castle nut, I have had good luck using the spacer that the axle seal rides on in a swing axle setup. See number 10 in the diagram.

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joescoolcustoms · Posted: Tue Mar 06, 2012 9:21 pm Post subject:

Also to mention, the bearing caps are different. The long axle tube uses a different axle cap than the short axle tube.

They cannot be mixed or the backing plate/wheel bearing will not have proper support.
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Everyone is gifted. Some just do not open the package.

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buggytime · Posted: Wed Mar 07, 2012 12:38 pm Post subject:

hey joe are you referring to this?

buggytime · Posted: Wed Mar 07, 2012 12:40 pm Post subject:

Also I had the spacer in the wrong location so thankfully that is fixed.

joescoolcustoms · Posted: Wed Mar 07, 2012 12:55 pm Post subject:

buggytime · Posted: Wed Mar 07, 2012 2:06 pm Post subject:

I'm guessing because I installed the one that's on the right that I should have installed the one on the left. ?

buggytime · Posted: Wed Mar 07, 2012 2:40 pm Post subject:

I'm guessing because I installed the one that's on the right that I should have installed the one on the left. ?

Teeroy · Posted: Wed Mar 07, 2012 6:51 pm Post subject: Swing Axle Long(er) Axle

There is also two different bearing depths of the style on the left, one is interchangable with the style on the right.
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lostinbaja · Posted: Wed Mar 07, 2012 7:33 pm Post subject: Re: Swing Axle Long(er) Axle

R.C.N. Bugs · Posted: Sat Oct 11, 2014 10:10 am Post subject:

Can some one please add part numbers for the 3 bearing caps I need the correct part numbers for bearing caps for 68 long axle long spling. Are they the same as type 3? Are they the same as irs . I have two bearing caps that end with a a. And another whose part number ends with a b. I need to get my straight axle conversion done

EVfun · Posted: Sat Oct 11, 2014 10:53 am Post subject:

If you want to name all the bearing caps that could get mixed up aren't we talking about 4 different bearing caps? Are the part numbers visible on the bearing caps? If so that would be a great way to tell them apart. Otherwise, distinguishing measurements will need to be used.

1. Pre 1965 (?) These don't have the oil flinging washer. They where designed for an oil flinger that mounted in the drum.

2. 1965-1967 These physically interchange with the ones above but have the built in oil flinger and should be matched to a oil weep hole in the backing plate.

3. 1968 These have the bearing positioned with more of it in the cap compared to older models. [edit: less of it in the cap] These have the built in oil flinging washer too.

4. 1969-1979 These are the caps for the IRS cars (1968 autostick also.) I don't know how they differ as I'm not very familiar with later Bugs.

That is all behind the drum. There are 2 different axle lengths used in Swingaxle cars as well. 1961-1966 are short axle cars. 1967 and 1968 are long axle cars.

Axle and drum splines come in 2 different lengths. Everything prior to 1968 has short splines, drums and axles. Everything from 1968-1979 has long splines. Long spline drums can only be used on short spline axles if you have a machine shop shorten the snout of the drum to allow the axle nut to be installed. (how much?)

Since 1969 and newer are IRS cars that leaves one year, 1968, with long axles and long splines (I think that is also what is used on newer Mexican Beetles too, as they did not go to IRS.) A spacer has to be installed between the drum and nut to allow the use of short spline drums on long spline axles.

My Buggy has 1967 long axles with 1963 brakes and bearing caps. I do not have the old style drum mounted oil flingers as they where not available reproduction until recently.
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jrailer · Posted: Sat Oct 11, 2014 6:34 pm Post subject:

Why didn't you just swap out the axles and tubes

VOLKSWAGNUT · Posted: Mon Oct 13, 2014 5:04 pm Post subject:

R.C.N. Bugs · Posted: Tue Oct 14, 2014 11:39 am Post subject:

I have two bearing can't that are 311501311a and 301501311b they are the same at the 68 ones you pictured but one has a different depth
So I don't know if it will be correct

VOLKSWAGNUT · Posted: Tue Oct 14, 2014 12:37 pm Post subject:

R.C.N. Bugs · Posted: Wed Oct 15, 2014 8:41 am Post subject:

They are two different depths I'll clean and measure and take pics


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