Aux trans requirements?
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Steve Jelf
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Aux trans requirements?
When you install a Muncie, Warford, Chicago, etc., I understand that calls for shortening the DS tube and radius rods. Does the drive shaft also have to be cut and welded, or are there short drive shafts made for this?
The inevitable often happens.
1915 Runabout
1923 Touring
1915 Runabout
1923 Touring
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tman1913
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Re: Aux trans requirements?
Birdhaven makes shorten shafts for the KC Warford.
They maybe able to help.
They maybe able to help.
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Wayne Sheldon
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Re: Aux trans requirements?
They have been made special for auxiliary transmissions. However almost every one of the different transmissions was a different length, by anywhere from a half inch to several inches. So no one shortened driveshaft can fit more than a few transmissions.
Generally, driveshafts were shortened by re-machining one end or the other. Which end usually depended upon whether the shop was better set up for the keyed taper or the straight square.
I once did one myself, with a bench grinder and hand tools! I used an era crankshaft cutting tool to cut the forward end to fit the torque tube's front bushing, then using a bench grinder with home-made go-no-go gauges carefully shaped the square to a perfect fit for the U-joint.
It CAN be done!
Generally, driveshafts were shortened by re-machining one end or the other. Which end usually depended upon whether the shop was better set up for the keyed taper or the straight square.
I once did one myself, with a bench grinder and hand tools! I used an era crankshaft cutting tool to cut the forward end to fit the torque tube's front bushing, then using a bench grinder with home-made go-no-go gauges carefully shaped the square to a perfect fit for the U-joint.
It CAN be done!
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Erik Barrett
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Re: Aux trans requirements?
All of those things have to be shortened. The tubes I cut and machine the ends square, then weld. On the shafts I cut the front end off and machine the bushing surface and u joint square back on in the right spot.
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Erik Barrett
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speedytinc
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Re: Aux trans requirements?
I would add that I assemble the D/S & tube before welding the tube back together. When cooled its a quick check for any possible misalignment by feeling for any binding.Erik Barrett wrote: ↑Tue Apr 12, 2022 2:00 amAll of those things have to be shortened. The tubes I cut and machine the ends square, then weld. On the shafts I cut the front end off and machine the bushing surface and u joint square back on in the right spot.
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Steve Jelf
Topic author - Posts: 7237
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Re: Aux trans requirements?
While we're at it, what about the radius rods? Does it matter where they're shortened? Near the front? Near the rear? Middle?
The inevitable often happens.
1915 Runabout
1923 Touring
1915 Runabout
1923 Touring
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MWalker
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Re: Aux trans requirements?
For the radius rods, I cut them to length by removing part of the front end; the threaded parts are often no good anyway. Then I buy some 9/16" x 6" bolts, cut the heads off, bend them to fit, and weld them into the radius rods.
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D Stroud
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Re: Aux trans requirements?
Whatever you do, DO NOT cut and weld the driveshaft! It's not if it will fail, but when it will fail(and it will), then you have no brakes. 
Do as was posted, machine either end to fit. Dave
Do as was posted, machine either end to fit. Dave1925 mostly original coupe.