Non-reducing Reduction Boxes

bciesq · Posted: Mon Jul 31, 2006 8:37 am Post subject: Non-reducing Reduction Boxes

A week ago I went over to Bucko's house and saw his military 181. All of the cool military radio gadgets aside, I was struck by the reduction boxes and how they allowed the axles to be up high and level compared to the crazy angles and stressed CV joints and boots under my Thing.

Then last week on Topica, there was a thread on the Haflinger.

http://en.wikipedia.org/wiki/Haflinger

The Haflinger has this feature:

chuy · Posted: Mon Jul 31, 2006 9:06 am Post subject:

Mine has reduction boxes. It is just a split window bus tranny. The reductors are geared 1:1.1. You do loose some of the gearing, but gain power from your reductors. The ring and pinion can be modified to give higher road speeds.

Any pictures of Bucko's car?
_________________
72 181 Radio Car - Weekend Driver
71 Baywindow Riviera Camper - Excellent for Surf Trips
68 Sunroof Squareback
71 Sportsmobile (Under Construction)

bciesq · Posted: Mon Jul 31, 2006 11:17 am Post subject:

bucko · Posted: Mon Jul 31, 2006 12:06 pm Post subject:

Enjoyed the visit from bciesq. I see that someone on the classifieds is selling the reduction box cases, but axles would need to be purchased, as the axles on reduction box equipped 181's are different I believe. The rear drum brake backing plate is most likely different too. Then there's the gearing. Reduction boxes were used for military 181's for getting these heavy, low powered 181's through soft sand and steep inclines. The original engines were the 1500 CC's, and low powered. Then add the couple hundred extra pounds of radio equipment. The previous owner claimed he drove my military 181 on the autoban at 60 to 65 MPH; he did this for several miles before blowing the motor.

The problem I see are the gearing inside the boxes. I'd think it will be costly to have new gears made to make these boxes 1 to 1 ratio, so you could keep the gearing to wheels the same, but gain on the reduced axle stress. Anything is possible though.

bciesq · Posted: Mon Jul 31, 2006 12:50 pm Post subject:

bucko · Posted: Mon Jul 31, 2006 1:24 pm Post subject:

I'm available to help you pull/install the engine and tranny if you go forth with it. I have the tools and time.

Let me know if/when you buy the bus tranny setup. I've removed/installed them in Beetles, so it's not much of a difference.

Ferretkona · Posted: Mon Jul 31, 2006 2:50 pm Post subject:

I have always understood that the 67 bus reduction boxes were 1 to 1. Possibly the 66 bus boxes as well.

EverettB · Posted: Mon Jul 31, 2006 3:00 pm Post subject:

WD-40 · Posted: Mon Jul 31, 2006 10:10 pm Post subject:

I'm pretty sure that the Pinzgauer has the same axle arrangement.

For what it's worth, a lot of farm machinery has things like that too. When you have to fit a wheel between crops, you need clearance on both sides of the wheel. Most of them have hydraulic hub "motors", but others are mechanically driven...

- David

bciesq · Posted: Tue Aug 01, 2006 4:15 am Post subject:

bciesq · Posted: Tue Aug 01, 2006 4:28 am Post subject:

Thingster · Posted: Tue Aug 01, 2006 3:48 pm Post subject:

I've been kinda interested in trying to find a way of installing portals onto an IRS Thing.

I know there was a company making 1:1 portal boxes for Dana 60 front axles. If they still make them, all it would take is a custom stub shaft with 30 spline outers and a flange to hook the portal to the diagonal arm. And if they can handle 38-40" tires and 400hp, they can handle anything we'll be tossing at them.

EDIT: Nevermind, they're $4000 a pair Shocked

Justin
_________________
"I like to take my Thing out and play with it."
1974 Thing (Play Toy)
1957 Sedan(Show Car)
1954 Sedan (On the back burner)


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