Some body out there knows the angle of the d/s pinion taper? Knowing is a step ahead of figuring it out. I am in the process of shortening some drive shafts for a muncie & jumbo giant transmissions & need to remake the end. Once I get the ends machined I will be lapping the gears to fit.
Thanks in advance.
Drive shaft/pinion taper?
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speedytinc
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Humblej
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Re: Drive shaft/pinion taper?
I do not know the answer to your question, but wouldnt the other end be easer to cut and machine?
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speedytinc
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Pep C Strebeck
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Re: Drive shaft/pinion taper?
I saved this from the forum, but I do not remember who posted it.
"Remember son, there are two ways to do this: The right way, and your way” Thanks Dad, I love you too.
LOOKING FOR A LUFKIN No. 9A Height Gage Attachment.
LOOKING FOR A LUFKIN No. 9A Height Gage Attachment.
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Les Schubert
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Re: Drive shaft/pinion taper?
Thank you for the drawing. Probably will be useful in the future!
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speedytinc
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Re: Drive shaft/pinion taper?
Thanks, thats very useful. More than I needed. Good to print & file away.
Interesting : u - joint pin hole 3/32? S/B 1/4"
Interesting : u - joint pin hole 3/32? S/B 1/4"
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Mark Nunn
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Re: Drive shaft/pinion taper?
John, the U-joint hole is 9/32".
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speedytinc
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Mark Gregush
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Re: Drive shaft/pinion taper?
When I did mine, I cut from the U-joint end, the shaft I was using was good at the pinion end. If I made the bushing area a little undersized (I did!), no problem, just made a new bushing to fit. Pinion end, would require more work; taper, thread, keyway and press fit for the pinion bearing. Even the modern replacement pinon bearing would still need about the same press fit, so the inner race does not spin. I had someone I know do the square end machining.
I know the voices aren't real but damn they have some good ideas! 
1925 Cut down pickup
1948 Ford F2 pickup
1925 Cut down pickup
1948 Ford F2 pickup
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Re: Drive shaft/pinion taper?
Actually the pinion taper is 3½" per ft on diameter. This taper has an included angle of 16.594 degrees.