A little background. I purchased a 15' Sahara Unlimited a month ago. I have since upgraded with the following:
2.5" RK flex lift with 1/2" terraflex coil spacers front and back. Came with front LCAs, front track bar, front sway bar links, rear track bar relocation bracket. Net lift in the front is right at 3.6" measured from the spring perches.
Rancho rs9000 shocks
35" Toyo MT tires
18x9" Rockstar II wheels
Rancho rs7000 steering stabilizer to compensate for the toyo radial pull. This was done after the vibrations started.
I drove the jeep for 2 days with stock tires and did not feel any vibrations. I had the tires/wheels put on and do not remember any vibrations at that point for 2 days. I took it back to the tire shop because it was pulling to the right, which I now see is a common toyo tire radial pull. Ever since then it seems like I have vibrations. The did put hub rings in at that time, but I thought those were supposed to help? If the wheels are lug centric and they balanced them that way and now they throw on hub rings would that throw the balance off at all? The vibrations appear right at 43MPH. I have taken the tires back to the shop 4 times to have them balanced. I have taken them to a second shop to have them road force balanced. Both say they balance out. The vibration is a oscillating vibration that will vibrate for 1 second, stop then repeat. If I drop down to 40 it stops. This is a automatic and if I force it to 3rd, 4th or 5th while staying above 43 it still does it. The vibration does not seem to come through the steering wheel but more or a seat/floorboard vibration along with being able to hear it. I have had 2 alignment checks and my caster was high to begin with 6.1 & 6.5 but I have since shortened my LCA's so that should not be causing it. My toe was .07 left and .10 right. My camber was -.6 left and -.6 right. Could this possibly be a drive line vibration? I plan on disconnecting the front drive shaft at the axle and tying it up to see if that eliminates it but I am under the impression from reading tons of info that the drive shafts in JKU's shouldn't vibrate unless they are out of balance. Would normal high driving throw it out of balance? It does not appear to be any weights missing What about the rear?
Thanks
2.5" RK flex lift with 1/2" terraflex coil spacers front and back. Came with front LCAs, front track bar, front sway bar links, rear track bar relocation bracket. Net lift in the front is right at 3.6" measured from the spring perches.
Rancho rs9000 shocks
35" Toyo MT tires
18x9" Rockstar II wheels
Rancho rs7000 steering stabilizer to compensate for the toyo radial pull. This was done after the vibrations started.
I drove the jeep for 2 days with stock tires and did not feel any vibrations. I had the tires/wheels put on and do not remember any vibrations at that point for 2 days. I took it back to the tire shop because it was pulling to the right, which I now see is a common toyo tire radial pull. Ever since then it seems like I have vibrations. The did put hub rings in at that time, but I thought those were supposed to help? If the wheels are lug centric and they balanced them that way and now they throw on hub rings would that throw the balance off at all? The vibrations appear right at 43MPH. I have taken the tires back to the shop 4 times to have them balanced. I have taken them to a second shop to have them road force balanced. Both say they balance out. The vibration is a oscillating vibration that will vibrate for 1 second, stop then repeat. If I drop down to 40 it stops. This is a automatic and if I force it to 3rd, 4th or 5th while staying above 43 it still does it. The vibration does not seem to come through the steering wheel but more or a seat/floorboard vibration along with being able to hear it. I have had 2 alignment checks and my caster was high to begin with 6.1 & 6.5 but I have since shortened my LCA's so that should not be causing it. My toe was .07 left and .10 right. My camber was -.6 left and -.6 right. Could this possibly be a drive line vibration? I plan on disconnecting the front drive shaft at the axle and tying it up to see if that eliminates it but I am under the impression from reading tons of info that the drive shafts in JKU's shouldn't vibrate unless they are out of balance. Would normal high driving throw it out of balance? It does not appear to be any weights missing What about the rear?
Thanks