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TOPIC: Aux joey box wanted

Aux joey box wanted 20 Oct 2019 16:12 #203659

  • Lang
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I need a stand-alone auxilliary overdrive gearbox to go on a 1941 Army Chevrolet 1 1/2 ton 4x4. Standard Chev 235 motor and 4 speed gearbox with separate transfer case.

I used a small auxilliary box off a Butterbox ACCO on my old KBS5 International and it works great. Now the new toy needs gearing up.

Any clues? Giant Mack joey boxes are not the go.

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Aux joey box wanted 21 Oct 2019 02:17 #203678

  • grandad
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Would something like this be any use?
chevy.oldcarmanualproject.com/trans/55stsra/index.html
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Aux joey box wanted 21 Oct 2019 08:37 #203684

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Grandad

That would be a good way to go. Only problem is the two speed axles give you a lower gear. What I need is a higher gear. I have a good two speed spare axle that would probably fit the Chev for my International KBS-5 but the high range is 6.33:1 which is considerably lower than the standard Chev diff. Maybe Chev produced a "highway" gear in the two speed, I will investigate further.

Thanks

Lang

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Aux joey box wanted 21 Oct 2019 11:10 #203685

  • Mrsmackpaul
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Warn overdrives used to be made for all the old Landcruiser gearboxes before 5 speeds were around
Old Toyota's were a copy of US chev motors except the had metric bolts
Maybe gearboxes were copied as well

Paul
Your better to die trying than live on your knees begging
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Aux joey box wanted 21 Oct 2019 21:50 #203700

  • cobbadog
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Not too sure if it would too light but a Fairy Over drive from a Landrover may be worth looking at as well.
Cheers Cobba & Cobbarette

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Aux joey box wanted 22 Oct 2019 08:08 #203709

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All those Fairey and Warn boxes go on the back of a married transfer case (transfer bolted directly to the gearbox)

The Chev has the standard Chevrolet engine and gearbox like the normal 2WD truck then a jack shaft to the Transfer case under a cross-member well back. I will have to check but do not believe this transfer case can be added to with an overdrive unit. Therefore I need something to go between the standard box and the transfer case.

The best alternative of course is to stick a modern Borg Warner T5 overdrive 5 speed gearbox on and leave the rest of the drive train standard. I did this earlier this year with my Chevrolet 3/4 ton panel van I restored in USA then took to Normandy and it was outstanding. Only problem is although the T5 was on everything (Holden, Falcon, Jeep, Jaguar etc etc) you need one with a forward gear stick position off a Chevrolet S10 pick-up and not too many in Australia. Without that forward position the stick will come out under the seat in the truck cab.

Lang

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