Jor2010dan

Hey I have a 92 lifted 5 inches. I have a iro hack and tap. I recently put in an Aussie locker in. I get a vibration above 65 mph. Any ideas??

Jor2010dan

Sorry. Ill be more specific. I have 235 75 15 toyo open country's. Just recently balanced. I'm pretty sure they aren't the problem.

SeriousOffroad

Your rear pinion should be pointing directly at the t-case output shaft.

Jor2010dan

Yes it is. Sorry. 4* shims on my leafs. They aren't it either. Could my transfer case be the culprit??

HCCAFan

Double Cardan going out?

SeriousOffroad

Check your drive shaft for missing counter weights.

Jor2010dan

Its 3 months old. Also from iro. Weights still on. I grease it after every wheeling weekend. ( at least once a month )

sheabo

tie rod ends or sway bar links?

gvns8

Could it be coming from the front? maybe your castor needs adjustment

mrfajita

Check your wheel bearings. I tried everything else before figuring out that was causing my vibes.

Jor2010dan

Tie rods could be replaced. My sway bar links are Rubicon express's junk kind(heim joint on one end). But I know they are on good

Jor2010dan

Not my alignment. Guy said he got it perfect and I work with him so I trust him!

Jor2010dan

Are these hard to replace?? Are they on front and back? Expensive??

gvns8

I was more referring to the pinion angle possibly being too low in the front causing ujoint vibes. This would occur when having a correct castor alignment according to factory specs.

mrfajita

Not sure how hard the rear ones are, but the fronts are easy assuming everything isn't rusted. Easier than changing an axle shaft u-joint, since its the same process.
Drive the speed the vibes start at, and take curves in both directions (mountain highways) Mine would get worse turning towards the left and go away turning right, so I replaced the hub assembly on the left side. Its gone now.