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Whoops! Opinions on this u-joint angle, please... (pic)

Discussion in 'The Garage' started by Shaggy, Feb 17, 2003.

  1. Shaggy

    Shaggy 3/4 ton status

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    <font color="green"> Looks like I miscalculated the pinion angle when I had the rear spring perches welded on. I have 4 degrees at the pinion yoke with a CV shaft, what do you guys think my odds of having vibes are?

    [​IMG] </font color>
     
  2. zakk

    zakk 1/2 ton status

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    I think you'll be fine, especially with a CV 'shaft.
     
  3. Shaggy

    Shaggy 3/4 ton status

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    <font color="green"> I'm thinkin that I'll be OK too, just wanted someone to back me up on it in case I'm fooling myself. /forums/images/graemlins/crazy.gif I got the e-brake installed today too, that sucker is strong! /forums/images/graemlins/thumb.gif </font color>
     
  4. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    I agree with zakk, looks to be in the OK range to me...that is a WAG though./forums/images/graemlins/smile.gif Looks like you might be 3 degrees down. IIRC 1-3 is acceptable...

    Rene
     
  5. Ryan B.

    Ryan B. 3/4 ton status GMOTM Winner

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    Eh. that shouldn't be too bad. At least its in the right direction, if you accelerate and get spring wrap its going to want to kick the pinion angle up right.?
    I was told when welding the spring perches it is desirable to weld it with the pinion angle like 1 degree down to compensate for that unless you have some sort of traction bar. /forums/images/graemlins/confused.gif
     
  6. Shaggy

    Shaggy 3/4 ton status

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    <font color="green"> I put an angle finder to it, it's actually 3.75 degrees down if you want to be exact. /forums/images/graemlins/tongue.gif I've heard that between 1 and 3 is where you want it to make up for axlewrap on accelleration. Hopefully it's OK, the whole thing is going to change anyways when I redo the rear suspension, I just didn't want to have to buy shims twice. Thanks guys!</font color>
     
  7. Triaged

    Triaged 1/2 ton status

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    At least you measured your angel. I just took a few steps back and said "...uh...that looks about right."
    I have no idea exactly what angle it is at (somewhere just below in line with the d-shaft with a CV) and it has no vibes.
     
  8. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    That's more or less how I did mine..."Wild-Ass-Guess", no CV and no vibes./forums/images/graemlins/thumb.gif

    Rene
     
  9. HarryH3

    HarryH3 1 ton status Author

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    I've heard statisticians call that the SWAG method. Scientific Wild Ass Guess. /forums/images/graemlins/wink.gif
     
  10. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    LOL...my method was too lame to be bestowed with the word "Scientific". /forums/images/graemlins/grin.gif /forums/images/graemlins/grin.gif

    Rene
     
  11. sled_dog

    sled_dog 1 ton status

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    hey not to jump off topic here but I wanted to know where you get one of those angle finders?
     
  12. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    I've seen em at Home Depot for $15 or so...

    Rene
     
  13. fortcollinsram

    fortcollinsram 1/2 ton status

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    Harbor Freight for like $5.99 is where I have seen them cheap...of course you can ante up for one from the Depot like Rene said or spend like $70 or more to get a digital /forums/images/graemlins/thumb.gif

    Chris
     
  14. Shaggy

    Shaggy 3/4 ton status

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    <font color="green"> I got mine for about $12 or so from Sears. /forums/images/graemlins/thumb.gif </font color>
     
  15. BorregoK5

    BorregoK5 1/2 ton status

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    Hey, if the angle turns out to be too much, throw some softer springs on there so it will wrap more /forums/images/graemlins/rotfl.gif

    Honestly though, I second, er third, er whatever the "ok" on the angle, but you never know.. decelleration may get you.
     
  16. Seventy4Blazer

    Seventy4Blazer 3/4 ton status

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    3.75...
    i was guessing 4. guess i have a better eye than i though.
    i think it will be fine. and get a 2 or so degree shim when ya do your rear suspension. but im sure ya already knew that.
    grant
    ps, nice drive shaft by the way.
     
  17. Shaggy

    Shaggy 3/4 ton status

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    <font color="green"> When I redo the rear suspension the angle is going to radically change anyways. Not sure of exactly what I'm going to do other than that I will be using 63" late model springs. I'm sure that I'll do a shackle flip of some kind, I'm leaning towards the Springer setup at the moment and considering shortening the wheelbase a little bit, but I want to see how it does set up like this first. Whatever I do will surely make the angle way off from where it's at now anyways, so I'll be shimming it at that time. /forums/images/graemlins/rolleyes.gif</font color>
     
  18. sled_dog

    sled_dog 1 ton status

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    Where can you get a digital and how accurate are they? A digital is more what I was thinking.
     
  19. Ryan B.

    Ryan B. 3/4 ton status GMOTM Winner

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    Don't you have some 2" blocks in there that jason made for you as well or am i mistaken?
    Instead of putting some wedge shims in there, you could take the blocks back out and have willyswanter or a machine shop to mill the bottom of the blocks so it has a 2 degree angle in it to make up for it. /forums/images/graemlins/thumb.gif
     
  20. Shaggy

    Shaggy 3/4 ton status

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    <font color="green"> Ryan, that's a good idea, I don't know why I didn't think of it! Good Dawg, you get a cookie. /forums/images/graemlins/thumb.gif They're about a 1/4" too tall anyways, so that would work perfect. Hmmmm, looks like I need to book some time on my father-in-law's mill. /forums/images/graemlins/thumb.gif I'll probably test drive it first to see if it's going to be a problem, but if it is then I will go that route. </font color>
     

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