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post #1 of (permalink) Old 02-22-2002, 09:50 PM Thread Starter
 
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I CAN\'T believe I\'m the first to think of this!

Has anyone ever thought of having a front driveshaft shortened to use it as a longer rear driveshaft? I was taking some measurements and the tube sections of my driveshafts are 16.5 and 8.5 front to rear respectively. Other than that they look prety muck identical. So why couldn't I just get an extra front, cut it appart (carefully) shorten the tube, still leaving it 2.5" or so longer than a standard rear shaft, and put it back together. I have some machine shop friends with the right tools to do it so why not?
Has this been done before?
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post #2 of (permalink) Old 02-22-2002, 10:00 PM
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Re: I CAN\'T believe I\'m the first to think of this!

Yes, been there, done that. Just ground down the tube weld, and welded it back together. The only trick is cutting it straight. Done that to some semi truck shafts, too.
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post #3 of (permalink) Old 02-22-2002, 10:13 PM Thread Starter
 
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Re: I CAN\'T believe I\'m the first to think of this!

Hell yeah thats what I wanted to hear. So the flanges bolt up interchangeably? I thought it looked like it would. Now what about taking the now useless rear tube and removing it's tube and replacing it with a tube of proper length to suit for a longer front driveshaft? I had a guy at a machine shop tell me that it is expensive to do this because the tubing is a metric size and that makes it pricey.

But what if you were to machine the ends of the shaft taken out of the tube down a bit to fit into another more standard size of tube?
What do you think?
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post #4 of (permalink) Old 02-22-2002, 10:14 PM
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Re: I CAN\'T believe I\'m the first to think of this!

yep easyest way is to use a cchop saw get it strait that way when you weld it back make sevral tacks around the tube before you put a solid seem on it.

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post #5 of (permalink) Old 02-22-2002, 10:49 PM
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Re: I CAN\'T believe I\'m the first to think of this!

Not sure about the Zuk shafts, but when I do the Jeep shafts, they have an insert at the ends that will center the yoke on the tube. If you cut straight through, you'll also cut through this insert, so it'll be a lot harder to center the yoke on the tube correctly. I'd recommend grinding down the welds, then using a hack saw to cut 1/4" through the rest of the way, at the end, then smack the yoke off. Cut the tube on the chop saw or other straight device, and weld it back in place. If you don't have a decent welder, just tack it and take it to someone who does, a 110V mig would be marginal at best for this, rotational torque is amazing.

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post #6 of (permalink) Old 02-22-2002, 11:41 PM
 
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Re: I CAN\'T believe I\'m the first to think of this!

Jeepn's got it right. There is a flange that extends from the yoke into the tube about 1/2". When I shortened my intermediate shaft, I used a lathe to get the straight cut (right down through the weld).


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post #7 of (permalink) Old 02-22-2002, 11:49 PM
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Re: I CAN\'T believe I\'m the first to think of this!

im pretty sure all d-safts have that inner flange

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post #8 of (permalink) Old 02-22-2002, 11:55 PM Thread Starter
 
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Re: I CAN\'T believe I\'m the first to think of this!

>There is a flange that extends from the yoke into the tube about 1/2".

This is what I was counting on. Carefully grind off the welds enough to knock theese ends out. Adjust the size of the tube. Reinsert the end, weld, balance, done!

But what if you need a tube longer than a stock front driveshaft? As I said before getting the metric tube to fit theese yokes is expensive. Does anyone know of a cheaper alternative for the tubing?

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post #9 of (permalink) Old 02-23-2002, 12:08 AM
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Re: I CAN\'T believe I\'m the first to think of this!

sure muffler pipe LMFAO !!!! no but serusly i have seen it done on a derby car , that was a big mistake LOL just as bad as the guy that could only get his car started with either so he ran him some dryhose from his carb to inside of the car so when it died he could spray it and start it LOL still rember the smell of burnt hair !!!!!!!!!!!!!!!!

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post #10 of (permalink) Old 02-23-2002, 12:14 AM Thread Starter
 
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Re: I CAN\'T believe I\'m the first to think of this!

Too bad, it's nice and cheap! Oh well the search is on.



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