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  #1  
Old 03-11-2017, 11:11 PM
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LARGEONE LARGEONE is offline
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Default Double Cardan DS for 80 front

I'm looking at options for the front driveshaft on my 80. I've had a vibration and finally got around to pulling the front shaft...definitely the source! So, I've read a little about using a Taco rear DS w Double Cardan and re-tubing, but I'm concerned about the age and miles that most of these have on them now. A few questions:

1) can the DC joints be rebuilt? Or once the Double Cardan goes bad they are toast?
2) what options do I have outside of spending $600 for a new DC shaft? I'd like to stay w/ Toyota if possible.
3) where's the best place to try to find a used Taco rear shaft?
4) where's a good place on north side or Boulder to get a shaft rebuilt or built to meet my needs?

Last bit of info...my 80 is lifted about 3" but I'm considering getting some 4" springs, so either way I think I'm gonna be getting into a new front shaft.

Thanks in advance.
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Old 03-12-2017, 07:07 AM
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60wag 60wag is offline
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Have you replaced the bearings in the current shaft? That might help.

The proper setup for a double cardan shaft is zero angle at the pinion and all of the angle at the upper double joint near the transfer case. If you do a knuckle cut and turn on the front axle to adjust the pinion angle, then the double cardan might make sense.

Also, the 80 front axle has offset in the horizontal plane in addition to the vertical plane. It's not much but it might be the reason for the unusual phasing arrangement of the joints in the stock shaft. If the joints are arranged the same as the rear shaft, then it is not assembled as described in the service manual.
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Old 03-12-2017, 08:36 AM
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jps8460 jps8460 is offline
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I just got a 3rd gen runner shaft at Denver pull and pay for $39. I'm pretty sure that my 2nd gen front is also a DC joint.

They are rebuildable. And there is a shop in Boulder that does it. Contact aprosise, he knows the name of the shop. They have rebuilt a shaft for me and a couple for Adam.
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Old 03-12-2017, 04:35 PM
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Drive line service of Boulder: http://dlsofboulder.com/

He made a very nice heavy wall drive shaft for the rear of my 80.
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Old 03-12-2017, 07:12 PM
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LARGEONE LARGEONE is offline
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Quote:
Originally Posted by 60wag View Post
Drive line service of Boulder: http://dlsofboulder.com/

He made a very nice heavy wall drive shaft for the rear of my 80.
Thanks a lot Bruce for the link! Did he use the Toyota U-joints?

I checked the front U joint on mine now that it is off and it seems to be binding a little. But I think the problem is more around the castor and flange angle. I'll check to see what it would cost to have U joints on this shaft rebuilt? But I'm still gonna search for a DC taco driveshaft in the interim.
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Horribly Painted Moonglow '95 FZJ80 Has Some - Still Needs More!
White 2008 GX470 - Nearly Stock
"I drive an ECO-FRIENDLY FZJ80...It's got a salvage title which makes it a REPURPOSED/REUSED/RECYCLED vehicle. Therefore, don't mess with me when I park in the "Reserved for Green Vehicle" spots in Boulder!!!
http://www.vrbo.com/322094
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