I had this problem before with my 3in lift but I want to see if any one has this setup n what kind of degree shims u have . So I had a 3' put in it today an eased it out a bit. But is anyone running a 4' n how did it go

you got the transfer case drop in too?

I wana try shims first I searched the forum n some guys had luck with 4' n a bit of tc drop but I don't want to. Last time I drop it my bolts gave out so I had to rethread n installed grade 8 bolts so I'm avoiding the tc drop for now

Then you need to be looking into an SYE.

I got a hack m tap cv shaft on it

Got the 4' shims installing at this moment I'll let y'all know how it went

Verdict?

Okay got them on but still could hear it grinding at highway speed so I dropped the tc 1/8 so let's see what it does

I used the TC drop kit that came with the RC kit and measured my angles front and back and they are within a tenth of a degree.

Yeah but u have the stock drive shaft right

Yes sir, just noticed you installed a CV shaft and hack and tap. I can't say I have heard of anyone with your problems. Most people have zero vibes with that combo alone. Best advice is to measure your two pinion angles using a method like THIS. This will tell you what degree shims you need. You want the two angles as close to one another as possible to eliminate vibes which are caused by differences between the two angles.

Okay it eased it out way much better than it was I think 1/4 will do it n also I notice I got a bad vibe on the front too since the back has eased out a lot

Finally got to test it out now Is all smooth but 45 to 50 I can still hear some grind but. Is not noticeable