DS angle

[CEThomas]

What is the max angle on the rear DS that is working for everyone. The DS vibes we have on the 7.5” lift between 50-60 is just too much. Want to see if we can work out something prior to spending the big $$$ on a SYE and Tom Woods DS

[Pete M]

2 questions; was the driveshaft balanced? and is it long enough?

[CEThomas]

Yes and Yes.

 

The only time it has the vibs is between 50-60 mph and when ever the load is reduced on the drive line. Let up on the gas of speed up so you load it up and all is OK :nuts:

 

Thought about a T-case drop kit to take some of the angle out.

[Pete M]

Are the angles set up properly? Meaning that the axle is pointed at the right angle? Even at 7.5", that's not a huge amount of angle for a ~45" long driveshaft.

[CEThomas]

Yes, everything was done by the book, we took a lot of time on the rear DS so we would not have a problem :roll:

 

We have been fighting it from day one. First thought it was a bad T-case so put the backup in. Then thought it was the front DS to took it out and went for a drive and no change :roll: so thought it may have been the tork convertor so switched out the trans and tork converter with the backup trans and tork convertor and the same problem :mad: So we took the rear DS out yesterday and took it for a drive and it drove so smoth :cheers:

 

Also if you get into it hard from a dead stop it has real bad vibs :eek: infact it's more like a pounding :eek:

[HOrnbrod]

I fought this for three months after I did my lift and gear change. To make a long story short, the vibes were caused by improper backlash in the rear diff.

[CEThomas]

It's a 8.8 rear, just changed the fluid in the rear when we got it. Did not check anything inside.