Lift/ Drive shaft problems

[blazen91]

Steven, these are posts I made in another section. Looking for your input. TIA.

Post 1;
I just installed the ORD shackle flip, droped my t-case and the drive line angles are way off. Can I move my t-case back up and cut and weld the perches, which would put both angles at about 5-6 degrees? Or should I leave the case down and cut and weld the perches to match the case?

Post2;
I left the t-case down. I have stock springs, a 4" shackle flip and a 1" 0 rate add-leaf. The bolts that hold the u-joint straps on are hitting the drive shaft yoke. Any body had this before? If I take out the 1" add-leaf, do you think it will fix the problem by lowering the drive shaft angle? Do you think a new drive shaft with 1350 joints would fix it? PLEASE HELP!!!



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[Stephen]

For best results, leave the t-case down, and match the angles by shimming or cutting and welding the perches. If you have a 4" lift, or more with an aluminum case, I would recommend going right to a CV jointed driveshaft, then you would want the pinion pointed right at the driveshaft.
With the flip kit, it's a little odd that you're that far off, but I've had worse on my own and had to move the perches. 14 degress one time, ouch!

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SW-ORD
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[blazen91]

When I first set it up, (on an unlevel drive way) my t-case was 6 1/2 degrees and the rear yoke was at 14-15 degrees.

So to clearify, you think that with a 241, I should just go ahead with the CV shaft?

Thanks for all your help.

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[Stephen]

I think the CV jointed driveshaft is a good idea. You can fight it all you want, but it's hard to get the angles right with a lift and a 241, especially with any kind of performance gear ratio in the axles.
How's the pinion compared to the driveshaft? with a CV, you want it straight on, which is where most shackle flipped K5's end up.

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SW-ORD
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[blazen91]

The output on the t-case is 7 degrees, the knuckle on the read end is 7 degrees, and the drive shaft is at 20 degrees(all measurments are on unlevel ground). I will be checking in on CV shafts tomorrow. Thank you for your help.

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[Stephen]

Sounds like the problem with your driveshaft is the 13 degree included angle between the driveshaft and the t-case or pinion. I don't think a ujoint is happy running at high speed at that angle. Sounds like a CV is a good choice. We use Tom Wood's Custom Driveshafts on our stuff.

Making the world better, one truck at a time.
SW-ORD
<a target="_blank" href=http://www.offroaddesign.com>www.offroaddesign.com</a>