Why universal joint angles are important (video)

[747mopar]

Threw my headaches of trying to eliminate a vibration I've heard so many time "it's not the driveshaft angles, look elsewhere"! I came across this cool little illustration that does a wonderful job of showing what is so hard to put into words so hopefully this will shine some light on the importance of getting it right.

[video]https://youtu.be/gmV4qwLfOMY[/video]

 

[JoeyD1968runner]

Excellent video, doesn't amaze me looks like it was made in the 1970's.

Joey D

 

[65-440]

Neat video

 

[747mopar]

O.K. Now a video from a young dude that seams to get it, #3 illustration closely shows what I've got going on "BAD".

[video]https://youtu.be/wkfndHDiH1M[/video]

 

[khryslerkid]

The last vid is the one I like. Can't make it any simpler than that!

 

[747mopar]

The last vid is the one I like. Can't make it any simpler than that!

True but I don't think everybody get's the whole idea of universals not running smooth and needing the same angles to cancel each other out, the first video I think is an eye opener to that fact. I just wish instead of bolting mine in where the old one was I would have known what I do now but that's how you learn and will likely not forget haha. May not even be my problem but at least I know where it needs to be and can eliminate it.

 

[65-440]

2nd vid was good too. Willing to bet that kid was raised in a shop !

 

[Meep-Meep]

I thought your driveline angle was already checked and cleared for service?? Was #3 the 5 deg angle at the tranny with zero at the pinion? I'm sure I even brought up that you need to have both tranny and pinion at the same angle (however, as he explains, different elevations are OK).

 

[747mopar]

I thought your driveline angle was already checked and cleared for service?? Was #3 the 5 deg angle at the tranny with zero at the pinion? I'm sure I even brought up that you need to have both tranny and pinion at the same angle (however, as he explains, different elevations are OK).

Well they "WERE" checked and O.K. but......................................... I had an issue with my leave springs from day one where I had to run a block on one side while waiting on the company to make it right. I finally got tired of waiting and had a local shop fix them and while I was at it I had them drop it another inch which is where I wanted it to begin with (love the new stance). Dropping it obviously raised the pinion straightening the angle at the pinion which is how it got out of whack again and at the same time I lost the wiggle room in the tunnel to tilt the pinion up without the chance of the shaft hitting the floor........ I know, I know but this is what I want. The other issue was that I was using the Tremec App on a smart phone and it showed all green but after talking to the Tremec techs they seamed to think it was still to far out? So I'm just shooting for perfection now. I did however check the accurancy of the Tremec App against a level and it's spot on but the calculations must be a little loose? At any rate I'm still chasing it and as it sits I've got 2 degrees down at the tranny, .2 degrees up at the shaft and .8 degrees up at the pinion so mines not as bad as #3 but same senerio.