square driveshaft

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sjjeep1
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square driveshaft

Post by sjjeep1 » Sun Mar 28, 2010 8:31 pm

Just thought I'd throw a couple pics up of building a square driveshaft. Anyone on the newbie ride probably saw skyler's front driveshaft broke in half on a rock, so using those parts i built this replacement out of 2" and 1.5" square tube. It is quite beefy!

Pic 1: cutting the cv joint off the busted tube
pic 2: CV joint TIG welded on the new square tube
pic 3: Finished shaft. I cut off 2" from the end of the large tube and twisted the inner shaft all the way and then welded the piece of large tube back on. This keeps the inner tube tight inside the outer so it won't rattle around while driving, which is an otherwise common complaint people have with square tube shafts.
Attachments
driveshaft cut off.JPG
driveshaft end welded.JPG
driveshaft finished.JPG
On building jeeps: "In hindsight, my easiest route would have been to pile up a year's worth of salary in the driveway and burn it. Then ride with friends from then on out. That would have been alot easier."

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Re: square driveshaft

Post by slvrjp00 » Sun Mar 28, 2010 8:34 pm

I am going to have alot of fun trying to break this one. Thanks again Scott it looks great.
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Re: square driveshaft

Post by karlvin08 » Sun Mar 28, 2010 8:47 pm

Pretty clever way of stopping the rattle. Square shafts are beefy and work great for fronts.
Overgunned? Hell, that's better than the alternative.
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Re: square driveshaft

Post by karlvin08 » Sun Mar 28, 2010 8:47 pm

Meant to add if you have lock out hubs to that last post.
Overgunned? Hell, that's better than the alternative.
A big hole lets a lot of air in, and a lot of blood out.
E. Kieth

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My 3 Favorite words..."Your prescriptions ready"
NavinRJohnson wrote:Sorry, but you guys are clueless. Any hair left on the badger interferes with the process, because the bits of the watermelon get caught in the hair. It's a sticky phucking mess. You don't really want to have to deal with that while looking for the quarter.

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Re: square driveshaft

Post by rj91jeep » Sun Mar 28, 2010 8:52 pm

i have been thinking about making the front driveshaft the same way for my cj. im know it would be fine for crawling but im just not sure how it is gonna feel doing the rock racing at high speed.
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Re: square driveshaft

Post by slvrjp00 » Sun Mar 28, 2010 8:54 pm

rj91jeep wrote:i have been thinking about making the front driveshaft the same way for my cj. im know it would be fine for crawling but im just not sure how it is gonna feel doing the rock racing at high speed.
I will try to do some highspeed testing to give you some test data Ryan.
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Re: square driveshaft

Post by rj91jeep » Sun Mar 28, 2010 9:03 pm

sound good Skyler. i have been trying to doing alot of research for this high speed stuff before i start building it.
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91 Yj built 4.0L- currently being rebuilt
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Re: square driveshaft

Post by RkyMtnH » Sun Mar 28, 2010 9:57 pm

WOW . Thats BEEFY !
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Re: square driveshaft

Post by marylandjeeper » Sun Mar 28, 2010 11:06 pm

tig welds look nice.
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Re: square driveshaft

Post by NavinRJohnson » Mon Mar 29, 2010 9:46 am

slvrjp00 wrote:I am going to have alot of fun trying to break this one. Thanks again Scott it looks great.
I give it 4 hours til you break. That is longer than normal for you, so that is me instilling confidence in Scott's skills.
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Re: square driveshaft

Post by halltrail » Mon Mar 29, 2010 10:13 am

Sweet...nice Scott.
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Re: square driveshaft

Post by ReneDave » Mon Mar 29, 2010 11:43 am

Nicely done, but that's a heck of a lot of slop you had to work out! :shock:
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Re: square driveshaft

Post by sjjeep1 » Mon Mar 29, 2010 12:07 pm

ReneDave wrote:Nicely done, but that's a heck of a lot of slop you had to work out! :shock:
Actually pretty typical for square tube, you will never get a perfectly tight fit just because the way square tube is made and the different radius curves for different sized tube. Hell I went to several steel supply/welding places to buy tube for it, and most of them said it was impossible and I would never be able to slide one piece in another. I just kinda laughed at them and said yea its done all the time for this purpose. A few of them actually took offense, and gave me the "I've been doing this for 25 years and it will never work blah blah blah" speech. Maybe i should take the finished shaft back and show them that it can be done :lol:
On building jeeps: "In hindsight, my easiest route would have been to pile up a year's worth of salary in the driveway and burn it. Then ride with friends from then on out. That would have been alot easier."

"America is all about speed. Hot, nasty, bad-ass speed." -Eleanor Roosevelt

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Re: square driveshaft

Post by NavinRJohnson » Mon Mar 29, 2010 12:32 pm

sjjeep1 wrote: Maybe i should attach it to my Jeep. crash through the shop windows and scream "Where's your God now doubters!!!!" :lol:
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Re: square driveshaft

Post by Slewis » Mon Mar 29, 2010 12:34 pm

sjjeep1 wrote:Actually pretty typical for square tube, you will never get a perfectly tight fit just because the way square tube is made and the different radius curves for different sized tube. Hell I went to several steel supply/welding places to buy tube for it, and most of them said it was impossible and I would never be able to slide one piece in another. I just kinda laughed at them and said yea its done all the time for this purpose. A few of them actually took offense, and gave me the "I've been doing this for 25 years and it will never work blah blah blah" speech. Maybe i should take the finished shaft back and show them that it can be done
Nice. You should definately go back and show them. 8)

I'm surprised they thought it would never work.
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