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Driveshaft idea. (really bad paint drawing)

85 Jimmy

85 Jimmy

Sheepdog
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So after I swapped to 52's up front I needed a longer driveshaft (and still do). So I have 2 stock driveshafts. Does anyone see why I could not cut them both up and weld them together long enough to fit? I know with 52's I'll have alot more flex then the stock slip can handle, but right now I'm not driving it offroad, atleast not for fun, so I shouldn't be flexing it out that much, but I do need 4 wheel drive.

Here's a picture of what I plan to do. Anyone see a problem with it?

driveshaftidea.jpg
 
you'll have major problems getting it to balance, and like Deuling said, you'll have problems cutting and keeping it straight when welding. Perhaps if you sleeved it and clamped it to the sleeve during welding you could keep it fairly straight, but you still have the problem of balancing it.
 
It might be easier to find some tubing that will either fit inside or over both to sleeve them together. It would also help keep everything straight.
 
You would be better off hacking it off perfectly straight on a chop saw if thats what you wanna do.
 
I could cut them straight off and put a piece of tube in, plug weld the tube in the shaft and butt weld the shaft together.
 
mr250twostroke said:
If your willing to do what you proposed... i'm confused... the tube will not cost you $200 :haha:
Click to expand...

Same thing I was thinking. You'd probably have the best chance of getting it true by just re tubing the thing yourself instead of trying to splice the ends together.
 
mr250twostroke said:
If your willing to do what you proposed... i'm confused... the tube will not cost you $200 :haha:
Click to expand...

So how would you suggest cutting the splined part of the shaft off to weld it back onto the new tube? Not trying to doubt you, I've just never done it personally. I have made a square shaft for the truck before, but now I'm running driveflanges and I'm not going to run another square one with the current setup.
 
85 Jimmy said:
So how would you suggest cutting the splined part of the shaft off to weld it back onto the new tube? Not trying to doubt you, I've just never done it personally. I have made a square shaft for the truck before, but now I'm running driveflanges and I'm not going to run another square one with the current setup.
Click to expand...

If you search you will get answers... cut past the weld untill you see the pressed in portion of the yoke. Then you will see how much is "in" the tube and remove it. I'll snap a pic in a few for you...
 
Cut on the welds, you will have to fine the appropriately sized tubing. Both ends have weld yokes on them not hard to do.

Much easier to just cut it in half and sleeve it. It sounds like its a very temporary mod ( it kind of has to be you don't have enough slip in a stock driveline to handle the suspension)

Temporary means cheap, free is best. Find tubing, sleeve, weld.

I have done it more than once, they rarely are good enough for highway use, but can get you out of a sticky situation off road or in bad weather
 
blazinzuk said:
Much easier to just cut it in half and sleeve it. It sounds like its a very temporary mod ( it kind of has to be you don't have enough slip in a stock driveline to handle the suspension)

Temporary means cheap, free is best. Find tubing, sleeve, weld.

I have done it more than once, they rarely are good enough for highway use, but can get you out of a sticky situation off road or in bad weather
Click to expand...

It is temporary, that's why I wanted to keep it cheap. I rarely drive the truck (once or twice a week tops) and I never go on the highway, fastest I go is 55mph. I plan to do a doubler once I find a np205, when I do that I'm getting new front and rear shafts.

I'll see if I can find tube cheap and attempt to re-tube it myself. If it turns out bad I'll just sleeve the other.

I could be using the truck right now to pull out 2 of my buddies trucks that got stuck during this hurricane, but didn't want to risk getting myself stuck with no front shaft.
 
I have done some pretty wacky stuff over the years, used the wrong sized tubing and everything, I often use weld wire to space it out kind of evenly.

I know a not straight driveshaft will not be ideal but my front driveshaft hasn't been straight for over a year now:D:D:D

It really does need retubed
 
personally i'd just make a square tube front shaft and call it a day
 
Just cut your existing driveshaft in two, install longer piece of tube either inside or outside and weld it up.

Why plug weld it? It is only welded around the OD to the ends anyway, the cut and sleeve does the same thing.

Square shafts suck!
 
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