Old Man Emu setups on 1st gens

I can't tell if mine is sagging or stock height

 

I have no vibrations, no issues without shins

 

Same

 

I actually had a slight shimmy before I lifted. After OME kit I was fine. Just added a few washers to CB just in case while I was under there and no more shimmy at any speed

 

Did any of you guys that had a bit of vibration notice it while in 2nd and 3rd gear going under 40mph? And if so, was the vibration intermittent?

I dropped my center bearing on the driveshaft just a tick, but wonder if those 3degree shims from wheelers would cure it 100% for me.

 

I found the info about the rims. They're from Discount Tire, here's a link

 

I have an OME lift on my '02 and I don't have any driveline vibration at all. No shims or washers or anything and it's all lined up fine. Used Wheeler's leaf springs when I did the lift.

 

I have vibration at speeds over 55mph and did a ome carrier bearing shim kit but still have strong vibration at those speeds. I cant figure out what is wrong, ive checked ever bearing and joint and rebalanced tires 3 times. Vibs SUCK but i am just dealing with it now

 

Does the vib seem to cycle in and out. Do you feel it in the steering? How much did you lift and how much did you drop bearing?

 

How much lift in the rear? It's suggested to shim the axle a degree for every inch of lift to fix the vibes.

 

I have dakars so around 2-2.5"

 

Its about 2-2.5" lift (dakars) and no it is stead vib and not felt in steering, more felt on the floor and in the seats. I used the OME fk29 drop kit. Not sure how thick the spacer is.

 

Assuming the u-joints are good. You night try dropping the carrier bearing a little more. Or shimming the axle to raise the pinion a little. I've dropped my carrier bearing 3/4 of an inch until I can shim my axle.

 

I put a few washers on there then and see if it does anything to improve it.

 

I found one post that mentioned a permanent sleeping platform (~100lbs) with the Dakar springs works well, can anyone else confirm? I think my tax return might go towards the ome kit from wheelers.

 

I have a platform in the back. (probably not 100lbs) but I just installed my OME kit with 881 with trim packer and leafs no aal

The OME ride is AMAZING

 

I can attest to loading the bed. When I put my camping gear in the back and set it up to sleep in, plus my bikes on the back the vibes go away!Probably because it squats a bit that way. I generally use my truck about once every two weeks in the winter and almost always unloaded. My dakars out back probably are at about 2.5" of lift over stock. I have a two degree shim coming and a magnetic degree finder to hopefully take some measurements to see if the shim puts the drop bearing and the pinion back to within 2degrees of each other.

Appreciate all the others suggestions and similar experiences.

 

Solid initiative, man. Let us know what you find out.

 

So correct me if I'm wrong here, but don't you get vibes if the joints are at different angles? For example you have the front at 3° and the rear at 5° you'll get vibes, because they're not turning at the same rate. But if they are both equal they're both turning equally and no vibes..?

 

They should be within 1-2 degrees.
The real benefit to a C. V. (double cardan) drive shaft is smoother operation at higher operating angles and longer life. The C.V. assembly works by intersecting the joint angles at the center pivot point and delivering a smooth rotational power flow or surface velocity through the drive line. Therefore, with this type of driveline it is important to roll the differential upward so that you have minimal joint operating angle at the differential end. As any substantial joint angle would cause the pinion to try to speed up & slow down two times per revolution. Causing what is known as a torsional vibration. (Torsional vibrations will also be created in a 2 joint driveline that has unequal angles at each of the "U" joints). Rolling the differential upward will lessen the total operating angle at each end of the driveshaft. Now at the transfer case end of the driveshaft you have two joints equally dividing the total angle . This will double the life of the joints at this end, additionally you will be back up to full rated life for the joint at the differential end. I also believe a C.V. is stronger than a conventional driveline when turning through the same angle. This would be the result of transmitting the torque in a plane more perpendicular to centerline of the driveshaft.