One Piece Driveshaft

[Shawn at Tom Wood's]

I was going to comment about stiff gummy worms but I won’t

You can't have the last name of Wood and work with shafts all day without having a keen awareness of double entendre.

@Superspirit The pics of the urethane bushing? Right here.

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[JohnnyO]

So when was the last time you took your everyday truck to the drag strip? Or was that an attempt at humor?

No, just saying that some drag strips require them depending how fast your car is.

 

[Dereku]

You can't have the last name of Wood and work with shafts all day without having a keen awareness of double entendre.

@Superspirit The pics of the urethane bushing? Right here.

Nice ring there for your shaft. Should keep it firmer....

 

[SigOris]

No, just saying that some drag strips require them depending how fast your car is.

Ok, good to know

 

[9zero1790]

so my questions are elementary but is the one piece drive shaft a "cure" for the shimmy shake and center support bearing issues? is one a piece drive shaft better at certain aspects than a two piece?

 

[TJC]

so my questions are elementary but is the one piece drive shaft a "cure" for the shimmy shake and center support bearing issues? is one a piece drive shaft better at certain aspects than a two piece?

I can only speak for myself. The Tom Wood's one piece shaft is built stronger than the Ford 2 piece Shaft, and exceeds the critical speeds of the Ford part based upon the Spicer/Dana Critical speed calculator. Ford sourced the stock 2 piece driveshaft in my 2020 4WD Ranger from Spicer / Dana.

Installing the Tom Wood's Driveshaft in my Ranger eliminated completely all low and high speed shudder that my truck exhibited.

- T

 

[NotBudule]

I can only speak for myself. The Tom Wood's one piece shaft is built stronger than the Ford 2 piece Shaft, and exceeds the critical speeds of the Ford part based upon the Spicer/Dana Critical speed calculator. Ford sourced the stock 2 piece driveshaft in my 2020 4WD Ranger from Spicer / Dana.

Installing the Tom Wood's Driveshaft in my Ranger eliminated completely all low and high speed shudder that my truck exhibited.

- T

And I don't believe any amount of shimming the 2 piece will make it as good, maybe more livable though, I'm gona mess with the bushing a few more times , then decide if I can live with it or bite the bullet ...

 

[D Fresh]

It's almost as though I've known what I'm doing all along.

Update on the bushing. I made a bushing yesterday. Cast in out of urethane directly in the stock drive shaft. Turned out well. I then tried to use that bushing to make a negative mold out of more urethane. Unsurprisingly that didn't turn out well. Despite my use of a release agent it turned into basically one solid block of urethane. I was able to excavate the bushing but not without destroying the mold. I might try making a new mold out of plaster or something. I sure as heck don't want to make a bunch of these by balancing a wobbly 65" long drive shaft on end and pouring urethane into it. But I'll probably stop at 1 or 2 of these and get back to doing what I know and what I know works well in this application, drive shafts. For me, the reasons I'm experimenting with making urethane bushings are: I'm a generally inquisitive person who likes learning/trying new things and I enjoy making things, all things. I want be able to say/show, with a deep level of truth, that I've explored other options and left no stone unturned, and that I'm not jumping straight to the solution that seems to make us the most money, it's not all about selling drive shafts. Lastly, some of you speculated about a stiffer bushing. I am a man of action, I wanted to bring the speculation and the thought experiments into reality, test the hypothesis. We'll see what the results are.

I'm going to box and send a bushing to @NotBudule today. He'll test it out and report back to the group. A pic of the bushing is below. It is durable urethane, I surprisingly did not tear it while trying to pull it out of the urethane mold mess. It is about the softness of a gummy candy, like gummy bears or gummy worms, on the stiffer side though.

Now you had to say that didn't you?

@NotBudule is gonna have gummies on the brain and by the time he opens it he's gonna think it's made of weed.

That first ring will be gone in seconds. Better send a second one.

 

[NotBudule]

Now you had to say that didn't you?

@NotBudule is gonna have gummies on the brain and by the time he opens it he's gonna think it's made of weed.

That first ring will be gone in seconds. Better send a second one.

A second one won't work either , I always eat a second one because the first one hadn't kicked in yet ,then a 3rd while waiting on the 2nd , that's my excuse for why the gummies are all gone anyways...

 

[D Fresh]

A second one won't work either , I always eat a second one because the first one hadn't kicked in yet ,then a 3rd while waiting on the 2nd , that's my excuse for why the gummies are all gone anyways...

Kindred spirit.


I always say "those don't work for me, maybe if I eat the whole bottle they might."

 

[Jason B]

It's almost as though I've known what I'm doing all along.

Update on the bushing. I made a bushing yesterday. Cast in out of urethane directly in the stock drive shaft. Turned out well. I then tried to use that bushing to make a negative mold out of more urethane. Unsurprisingly that didn't turn out well. Despite my use of a release agent it turned into basically one solid block of urethane. I was able to excavate the bushing but not without destroying the mold. I might try making a new mold out of plaster or something. I sure as heck don't want to make a bunch of these by balancing a wobbly 65" long drive shaft on end and pouring urethane into it. But I'll probably stop at 1 or 2 of these and get back to doing what I know and what I know works well in this application, drive shafts. For me, the reasons I'm experimenting with making urethane bushings are: I'm a generally inquisitive person who likes learning/trying new things and I enjoy making things, all things. I want be able to say/show, with a deep level of truth, that I've explored other options and left no stone unturned, and that I'm not jumping straight to the solution that seems to make us the most money, it's not all about selling drive shafts. Lastly, some of you speculated about a stiffer bushing. I am a man of action, I wanted to bring the speculation and the thought experiments into reality, test the hypothesis. We'll see what the results are.

I'm going to box and send a bushing to @NotBudule today. He'll test it out and report back to the group. A pic of the bushing is below. It is durable urethane, I surprisingly did not tear it while trying to pull it out of the urethane mold mess. It is about the softness of a gummy candy, like gummy bears or gummy worms, on the stiffer side though.

You could try making a mold with silicone casting like this:
Amazon.com: Mold Star 30 - 1A:1B Mix by Volume Platinum Silicone Rubber - Pint Unit : Arts, Crafts & Sewing

If you make more, I'll buy one to try out. if it works cool, it's a risk I'll take if it doesn't.

 

[NotBudule]

@Shawn at Tom Wood's

had to lube it but went in pretty good , took all the loose play out but I can move it a little with effort, pretty much what I was thinking and wanting , was going to maybe put a zip tie around it for a temporary retainer to hold it in while I go on a spirited test run , somebody hold my beer ...

 

[Stevedbvik1]

@Shawn at Tom Wood's

had to lube it but went in pretty good , took all the loose play out but I can move it a little with effort, pretty much what I was thinking and wanting , was going to maybe put a zip tie around it for a temporary retainer to hold it in while I go on a spirited test run , somebody hold my beer ...

“Spirited test run”

 

[NotBudule]

The damn dog had to go and messed up my butt dyno a little , its good when i get on it for sure , and felt good at 70 + , but i think i feel something on deceleration , it may be a little too stiff , i have to go back and forth to work to really get a good feel for it though ...

 

[Dr3wDrop]

The damn dog had to go and messed up my butt dyno a little , its good when i get on it for sure , and felt good at 70 + , but i think i feel something on deceleration , it may be a little too stiff , i have to go back and forth to work to really get a good feel for it though ...

Is your slip joint at the other end of this greased?

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