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Driveshaft for SAS question

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Old 12-15-2009, 08:07 AM
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Driveshaft for SAS question

I see that the Driveshaft for the front on a SAS needs lenghten. But all the kits I see say you can not drive on the street above 50mph. Where do you get one that can be driven on the road daily?
Old 12-15-2009, 08:13 AM
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Originally Posted by jamarak
I see that the Driveshaft for the front on a SAS needs lenghten. But all the kits I see say you can not drive on the street above 50mph. Where do you get one that can be driven on the road daily?
That only refers to using 4WD (or front wheel drive) at that speed. In 2WD the type of driveshaft does not matter as it is not turning. All has to do with how tight the shaft is, how well balanced it is and how correct the front driveshaft angles are:
- http://www.4crawler.com/4x4/ForSale/Shims.shtml#FAQ1

I had a front shaft built from off-the-shelf parts at a local driveline shop that works quite well at speed. It uses the longest travel Spicer or Neapco slip yoke in the catalog and works quite well. I am a few degrees off on my front angles so there is a little vibration at high speed, but not bad.
Old 12-15-2009, 09:17 AM
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So i guess the trail gear would work then. I didn't even think about that. Thanks. If anyone else has any ideas or comments please feel free to share them with me. I hope to start the SAS after the first of the year. Axle will be here in a few days!!!!!
Old 12-15-2009, 09:28 AM
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one option is after you get done with the sas measure the length the driveshaft needs to be at full droop and at full compression, then call steve at southbay driveline(google),, it is sure not the cheapest way to go but it will be balanced,,, I went with the four inch TG in the ft. and he made me a long spline double cardin shaft that works great,, no vibe at all,,,,,,

edit to say also lay a straight edge in between the transfer case flange and diff. flange and get a angle guage so you can tell him the max angle at full droop,,,, ,,, also the tg long spline kit will also work a lot cheaper,,,,, I just didnt want any vibes going on.,,,, my ft. was around five bills but worth every bit of it....

Last edited by toyoffroada; 12-15-2009 at 09:33 AM.
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