Ultimate redux swap thread

thrown_hammer · Posted: Mon Nov 06, 2006 7:40 pm Post subject: Ultimate redux swap thread

I have been researching the redux swap phenomenon and find conflicting and confusing information. So I thought everyone that has a redux set-up in their Baja or rail could chime in on one Ultimate thread.

I don't want a debate. I just want facts from people that have redux boxes now or in the past.

I Understand that the redux swap is not for flying dune cowboys, or Baja racers (anymore), but are sweet for rock crawling, hill climbing, and trails.

Lets talk about adapters, gear ratios, tire size, things that break, why they break, etc.

I have a set of Johnson laydown adapters. I plan to reverse engineer them and get prints made. Let's share all the info we can come up with in one big ultimate thread.

Here is some conflicting info. I have read on here that the large nut is stronger, but in the Hibbard book it states the small nut is stronger. So who is right?
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bajabugman66 · Posted: Mon Nov 06, 2006 9:51 pm Post subject:

OK as im sure you've read whichever is which, the 63-67 redux box bearings aren't as strong and there is no choice in gearing.
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runslikeapenguin · Posted: Mon Nov 06, 2006 10:17 pm Post subject:

the only down side is that ive taked to a few people thats have told me that they are pricey to replace when they go out.
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merc · Posted: Mon Nov 06, 2006 10:22 pm Post subject:

Well, as mine isn't driveable yet, the best I can do is post pics of mine. All work was done by the p.o. I'm still trying to figure out what I have exactly.

Left side

Image may have been reduced in size. Click image to view fullscreen.

Right Side

thrown_hammer · Posted: Tue Nov 07, 2006 5:17 am Post subject:

The large nut would be the '63 to '67 so it looks like the small nut is stronger?

Your adapters look home made. My large nut tranny has similar adapters. If you have a 36MM nut on your drum you have small nuts, if they are 46MM you have large nuts.

Does anyone know if the internals of the trannies themselves are the same between the small nut and large nut? I am under the impression the redux boxes are differenr but the trannies are the same?

Here is a pic of a small nut and a large nut side by side.

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1974 Superbeetle Bright Orange

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Tim10 · Posted: Tue Nov 07, 2006 10:33 am Post subject:

Hammer...

I'd make a small thread on the splittie bus forum... I wouldn't tell the details of what's going on.. just a factual "are the guts of redux interchangeable" thread.

I really don't hear splittie buses blowing their trannies... more the 36hp engines poop out.
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Tim10 · Posted: Tue Nov 07, 2006 12:05 pm Post subject:

Check your PM box... just thought of a good source for proven info on your conversion...

T.
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HamburgerBrad · Posted: Tue Nov 07, 2006 12:07 pm Post subject:

thrown_hammer · Posted: Tue Nov 07, 2006 1:47 pm Post subject:

Are the RGB trannies known by a number? Like the 3 rib or six ribs are 002s and 091s or are they just small nut and large nut? Are there LSDs or lockers available for the RGB trannies? I am going to start a thread in the Splitbus forum and see if I can gleen any info from the bus guys. I believe the Euro type 181s used a RGB trans. Also did the military VW stuff have the RGB trannies?
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thrown_hammer · Posted: Tue Nov 07, 2006 2:45 pm Post subject:

Here is a Johnson laydown adapter. The axle overtubes are at the welder being touched up. Can anyone tell from this pic if these are for largenut or small nut? It seems to line up with both? Confused

I need to put some bolts in and see if they really do both line up.

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Keeper of the Titanium Monkey

thrown_hammer · Posted: Tue Nov 07, 2006 6:46 pm Post subject:

Well The bolts I have are too short. But I am telling you the bolt pattern looks really close between the large and small nut redux boxes. Is it possible that the gear reduction boxes have the same bolt pattern? I read on here that they are different, but I read alot of stuff on here..... Laughing

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Jamnajar · Posted: Tue Nov 07, 2006 6:48 pm Post subject:

thrown_hammer · Posted: Tue Nov 07, 2006 6:49 pm Post subject:

Please do. Knowledge is power.
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1974 Superbeetle Bright Orange

Keeper of the Titanium Monkey

thrown_hammer · Posted: Wed Nov 08, 2006 5:09 am Post subject:

According to the Splitty bus guys the redux boxes can be switched between the large and small nut trans.
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1974 Superbeetle Bright Orange

Keeper of the Titanium Monkey

Tim10 · Posted: Wed Nov 08, 2006 5:16 am Post subject:

thrown_hammer · Posted: Wed Nov 08, 2006 10:30 am Post subject:

Here ya go. Again got the info from the Splitty Bus folks.

http://failsure.net/oacdp/5867part/287.png

The number of teeth on the axle gear is listed between #20 and #21. Even lists part #s. Maybe we could order Alpine gears from the Motherland? Wink

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1974 Superbeetle Bright Orange

Keeper of the Titanium Monkey

BugZyla.com · Posted: Wed Nov 08, 2006 6:05 pm Post subject:

The transmission itself is the same, be it big nut or small nut axles. These are the same transmission used in the T-1 & Ghia, just with the ring gear flipped to run it backwards. I have my own adapters I made to put mine in the car. I broke a driver side adapter, and then re-enforced the new ones to handle the torque better. Pics can be seen at http://www.bugzyla.com and then click on pictures. Like what was said before, the redux set up is great for lift, but not for flying though the desert or big jumps, or engined with tons of HP. For this reason I am converting my bug to an 091 bus IRS with 930 cvs and 3x3 arms. mainly to handle the 2332 I am building.
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thrown_hammer · Posted: Wed Nov 08, 2006 6:37 pm Post subject:

Daryll,
I was planning on using your adapters before I got ahold of the adapters I currently have. I don't fly thru the desert, jump ramps, or have alot of HP so it should work pretty good for me. Laughing

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1974 Superbeetle Bright Orange

Keeper of the Titanium Monkey

thrown_hammer · Posted: Thu Nov 09, 2006 6:42 am Post subject:

What I know so far.

The RGB bus trans is the same as a type1 swing axle trans except for the flipped ring gear. Therefore all the swing axle goodies like super diffs will fit the RGB trans.

The RGB trans is the same if it is a small nut or large nut. The difference is in the Redux boxes themselves.

I haven’t confirmed this yet but I think the bolt pattern on the small nut and large nut Redux boxes are the same. If they aren’t the difference is very small. Once I get longer bolts I will know for sure. When I put my adapters on either redux box the thru holes appear to line up.

I am going to start a thread in the Thing forum. I have heard the early Euro and Mexican Things had RGBs. Also the military versions are rumored the have RGBs as well.
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1974 Superbeetle Bright Orange

Keeper of the Titanium Monkey

HamburgerBrad · Posted: Thu Nov 09, 2006 11:05 am Post subject:


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