Another CV bites the dust

[House]

Got to go play in the snow yesterday and broke another ball out of the
front driveline CV. I had good luck with the straight driveline, but couldn't
stand the horrible vibrations I had. The CV fixed that but now I have had
to fix or replace the driveline every other trip I take it on!
Something has got to change...! Maybe the Toyota setup like Crawlin68's?
Funny thing was I just aired way down and went everywhere everybody else
did in 4WD... Passed a few rigs too.

[CityHick]

Re: Another CV bites the dust

What's the angle on your front driveline?
I have a stock style CV up front and I get a vibration at higher speeds, but its usually not a problem because I'm usually crawling when in 4wd. Above 20-30 mph in 4x4 it lets me know its there.

I will measure mine later, its fairly steep though as I run a 5.5" suspension lift with a low pinion 44 front. You might be able to get a little driveline angle correction by running lesser degreed c-bushings up front, sacrificing a little caster for better driveline angles. It won't be much but you can gain a few degrees anyway.

[crawlin68]

Re: Another CV bites the dust

Sounds like too steep of an angle on the driveline maybe. Have you measured it? Have you jacked up the Bronco and let the front axle droop all the down, and then tried to turn the driveline by hand?

[highlander]

Re: Another CV bites the dust

The easiest fixes would be to run a center mounted limiting strap and or switch to a lower degrred c-bushing. You have the Cage arms right? what degree c-bushings are you running now? Since you use it on the street I would try to maintain atleast 3.5-4° of caster, but 5-6° is ideal.
The complex solutions would be to cut and rotate the knuckles or switching to a high pinion housing. You could also look into a modified CV that allows for more angle, depending on how far its going. The Toyota conversions eliminate the CV.
I would first check to find out how its binding, you may be able to get by with just a clearanced cv.

[House]

Re: Another CV bites the dust

I have not measured the actual angle.
The last one bound up so I ground some material off of this one for clearance,
but apparently it is still a troublesome area. I have a low pinion housing also.

[House]

Re: Another CV bites the dust

Sorry Highlander, I didn't see your reply since we posted at the same time.
I went with 2 degree bushings on the Cage arms to try and eliminate having too much caster angle.

Do you guys think it is throwing money away going to High Angle's front
CV-less setup with the flat flanges?

I guess I'll have to do some angle measurements...

[highlander]

Re: Another CV bites the dust

Sorry Highlander, I didn't see your reply since we posted at the same time.
I went with 2 degree bushings on the Cage arms to try and eliminate having too much caster angle.

Do you guys think it is throwing money away going to High Angle's front
CV-less setup with the flat flanges?

I guess I'll have to do some angle measurements...

I think you will get the same results you had with your straight non-CV 1310 shaft. It will work and hold together, but you will have vibrations. I looked into all these when I went to 5.5" lift, I ended up buying a HP housing. I had already turned the knuckles on my first EB just to make the driveshaft work correctly with a 3.5" lift and felt the HP had many more advantages. You could pickup a HP housing ($75-150), narrow it ($0-250), and buy HP gears w/ install kit (~$250) for about the same price as Jesse's $600 Toyota non-cv shaft.

[Delta 4 Wheel]

Re: Another CV bites the dust

If I recall correctly, the 1310 can only operate at 28 degrees MAX. You can take it apart and grind the H yoke in areas where it hits and get it to 32-33 (IIRC) and be in a better position.

[House]

Re: Another CV bites the dust

I measured it before I took it out and it is sitting at 23 degrees.
Here you can see that it destroyed the pin that the ball sits on.
I am going to go to a 1330 CV and see if that helps for now...

[welndmn]

Re: Another CV bites the dust

I thought 1330 CV's had less angle then 1310's?

IMO, you need a center limiting strap.

[House]

Re: Another CV bites the dust

I hope not! I took it to a reputable driveline shop and he told me that he
would make me a new driveline with a clearanced 1330 CV and it should be
good to appx. 35-38 degrees, whereas a stock one is 28-30. We'll see how it
looks in a couple of days I guess...

[highlander]

Re: Another CV bites the dust

I thought 1330 CV's had less angle then 1310's?

IMO, you need a center limiting strap.

I think your thinking of 1350 cv's, 1330's have the same size caps as 1310 with a wider cross. A 1330 isn't much stronger but it should provide some additional clearance.

[welndmn]

Re: Another CV bites the dust

I just checked, it does have less angle then a 1310, but if it's modified, that throws it all out the window.
http://www.pirate4x4.com/tech/billav...aft/index.html

[crawlin68]

Re: Another CV bites the dust

I thought the same thing, that the 1330 have less angle to them vs. a 1310. But like Mark said, if it's ground for clearance then it should have more angle to it anyway. When are you supposed to get it and install it?

[House]

Re: Another CV bites the dust

Got it today. Looks good! Spicer and MADE IN USA stampings at least
make it look stronger... lol
I'll probably put it in on Saturday. MAYBE. It has been 2 degrees here at night
and my Bronco is in an insulated but unheated building, so we'll see...
I also got a lift lined up that I can pick it up by the frame and see how much
vertical droop I actually have. Not that I will be jumping it, but it should give
me a good baseline for flex measurements at least and see what binds...