grundiesel

When driving at low Rpms and lugging I am feeling a pretty bad vibration. It is only when I under a load like if I were to take off from 2nd gear and accelerate or if I don't down shift when climbing. The vibration comes about 2000 rpm and is gone by about 3000rpm. I I take of with a high acceleration the vibration isn't there. Or if I am at freeway speeds there is no vibration. I checked my drive lines, motor mounts everything. Anyone have any idea what it could be? I have a 2 door 2007 with a 6 speed lifted, on 35s
Thanks

Tonka_yellow

Do you have stock gears in your jeep?

grundiesel

4:10s but yes I believe they are stock, I bought the jeep from a dealer already modified

Tonka_yellow

Are you sure you don't have 3.21s or 3.73s. I think you are getting the small shake and the feeling your going to stall because you do not have enough low end torque to spin those big tires. i have noticed on steep hills when coming to a complete stop. i need to ride the clutch more or i will stall in first gear with my foot to the floor. I have the 32inch tall tires, 3.21 gears and the 6speed in my 08.

grundiesel

It for sure has410 I checked. But thanks. This only started today and I put 6 k miles on it as is.

grundiesel

1010101010101

familytime

2007 Jeeps came stock with 3.73 gear or with tow package 4.10

ronjenx

The only choices in 2007 were 3.21 and 4.10. The 4.10 gears were required for the automatic, and were optional on the standard, with or without the tow package.

grundiesel

Well it was my u joints!

Thanks all for the help