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Driveshaft angle for a CV rear shaft

Discussion in 'The Garage' started by scrappy88, Aug 16, 2005.

  1. scrappy88

    scrappy88 1/2 ton status

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    I just put a 4" Tuff Country all spring lift (no blocks or shackle flip) on as well as swapped in a 14bff + 8 lug front conversion on my K5. My old driveshaft is so worn out not even new u-joints will fix it, so I'm going to run a CV shaft from High Angle.

    I measured today how much I need to move the rear pinion up to point into the driveline. Using my cheapo harbor freight angle finder, I came out with exactly 90 degrees on the pinion, and 26 degrees on the driveshaft, so that means I would have to move the pinion up around 25 degrees :eek1: ???? Does this sound right? Seems like an awful lot to me. If that's the case I'll be hacking off the spring perches very soon. Just wondering if I measured wrong or not before I go chopping stuff up with the angle grinder.
     
  2. BigCountryx

    BigCountryx 1/2 ton status

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    The exact angles are not important when running a cv shaft. Your rear pinion should point directly a the tailshaft or output flange of your tc (maybe down a degree to compensate for slight axle wrap or torsion.) Your cv joint should be doing all of the work of relieving the angle. If you need more than a few degrees of correction to do this, rewelding perches would be best. Or you could use a shackle flip whith stock springs and your pinion should be just about right.
     
  3. FWP

    FWP CRS

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    Mine pointed up about 30* from stock, I had to reweld new spring perches.
     
  4. scrappy88

    scrappy88 1/2 ton status

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    Ok I guess that's what I'll be doing then. It seemed like a lot to move the pinion up that far.

    Did you have to reweld your shock mounts also since you rotated it so much?
     
  5. Roz

    Roz 1/2 ton status

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    i just did shackle flip and my shock hit a tiny bit at full flex. small dent in it now
     
  6. FWP

    FWP CRS

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    No, but they do caress the axle tube a bit :doah: . Small dent, like what Roz said.
     
  7. Desert Rat

    Desert Rat Fetch the comfy chair

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  8. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    I have that shock upside down on the DD :D
     

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