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Baja Forums -:- VW Volkswagen Bug, Baja, Bus, Sandrail and Thing -:- VW Volkswagen & Baja Bug General Discussion -:- which bus
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which bus
Bug, Baja, Thing and Buggies. Most every thing that will not fit any any other area. See list of other Forums for better topic placement...Volkswagen General Discussion
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kcnaz
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Post Post subject: Re: which bus
Posted: Sun Nov 25, 2007 05:31 PM
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Go to Marks site and read.......www.blindchickenracing.com

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enginerd
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Post Post subject: Re: which bus
Posted: Mon Dec 17, 2007 12:26 AM
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Ok. I just finished installing a 66 bus trans into a sand rail and there are a couple of ways of doing it. My suspension is custom made by me. I learned how to do it by a guy that had build a number of these toys and its great. I have more clearance and enough reduction to run 33" tall tires on the back. If you swap a bug trans with the 4.375 ring and pinion for the bug 4.125 ring and pinion,(you have to reverse your differential) your ratio is even better. My reduction boxes are 1.39's. I will try and attach some pics of it but it is worth the trouble to put them in.

There are two ways to do the conversion. The first way is rather easy but it leaves you with a problem. Since the differential is spinning reverse of a normal trans, you will have a tendency to 'hop' the back end when giving it power. If you watch an old bus take off, the back end lifts a little. Bugs will 'hop' because they are lighter. I can send a picture of it.

The second way is to set up a '4 link' suspension on the back. It takes more time and a lot more work but I believe it is worth it. I will send pictures of mine to you directly if you wish. After having had a bug with a standard suspension, one with the gear reduction, and one with a bus IRS transaxle, my gear reduction is my favorite. I can drive over a milk jug and not touch it and I can climb things that I shouldn't even try and climb.

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caversmoon
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Post Post subject: Re: which bus
Posted: Mon Dec 17, 2007 03:47 AM
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Cool show us the pictures

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enginerd
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Post Post subject: Re: which bus
Posted: Tue Dec 18, 2007 02:21 AM
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If you go to the pictures page, under the Dune Buggies and Sand Rails tab, the 5 pics there are of the buggy. The last is of the suspension. As of right now, I only know of a few people that use this method, myself, the guy I bought the frame from, our mutual friend, and maybe one other. I have not seen much of this type of modification because there is not a 'kit' yet but I am thinking of making one.

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caversmoon
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Post Post subject: Re: which bus
Posted: Tue Dec 18, 2007 04:24 AM
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Does the turn buckle get in the way and does it do anything but add strengh.?

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enginerd
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Post Post subject: Re: which bus
Posted: Wed Dec 19, 2007 04:52 AM
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I have changed the 'Heim' or "rod end ball joint" so that it attaches to the bracket that is welded to the torsion housing and then attaches to the old shock mount. It does not get in the way at all but I did find with the ones in the pictures that the one bolted to the gear reduction box was not strong enough. It was not the size but the way it was made so I use one that is the same as on the other end. The ones I use are 5/8" thread and I use grade 8 bolts on it all.
If you rigidly mount the box to the spring plate you get hop in the back end. The 'L' plate is made from 1/2" steel plate with a 1" shaft welded in to it. I can post more pictures when I get more time. Then a 1/4" plate has a tube welded to it, mine is from a equipment manufactures that uses them for various things, but it works like the receiver on your truck. The shaft with the heim joints on it keeps the housing from rotating but by disconnecting the gear box from the suspension in this way, you stop the hop. It also then gives you the extra clearance so the back end is higher without the bow in the tires.

If you want shocks, you simply attach or thread the 1" shaft that is welded to the 'L' bracket and attach it there. Light duty air shocks are good because if you add some weight (sleeping bags, gas cans, etc) for a long trip, you can simply add some air to get back to a level suspension.

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enginerd
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Post Post subject: Re: which bus
Posted: Wed Dec 19, 2007 04:56 AM
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I forgot one thing, you have to cut the spring plate some and create a notch like the original end so that you can slide it in and out if you need. There is also a 1/2" spacer between the 'L' bracket that mounts to the gear box and the receiver that mounts to the spring place.

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enginerd
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Post Post subject: Re: which bus
Posted: Wed Dec 19, 2007 05:03 AM
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I guess I didn't answer the question. The lower bar (drag link) with the heim joints keeps the housing from spinning on the 1" shaft attached to the 'L' bracket. If it wasn't there, the axle tube and housing would rotate around the 1" shaft until it hit the end of the spring plate. Eventually it would fail and your ride would be wild.

I have contemplated taking a housing and having it machined so that the shoulder where the axle tube attaches is round. You would then press fit a brass bushing over it and create a receiver similar to the one for the 1" shaft. The idea is the same but then there is a lot more work with not much of a benefit. This system is fairly easy for anyone with a welder, drill press, grinder, and a few hand tools.

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