I've got a 2001 Jeep Cherokee XJ 4 liter. The last few months I've been getting a weird miss feeling spastically when driving on the freeway mostly between 55 & 75 mph. I replaced the spark plugs and coil but its only gotten worse. Now it feels more like its in the drivetrain like something is locking up or binding. It has the same shutter of hitting a pot hole and I can feel the weight of the car shift forward as if i had tapped the breaks. I checked the driveline and I haven't lost any balancing weights and the u-joints are fine. Any suggestions?

 

welcome to CF eastern PA could be a brake caliper or cylinder sticking possibly a bad wheel bearing binding ujoints tons of possibilities youll have to narrow it down a little also do you have a lift on the jeep and if so how much

 

I don't have a lift and have replaced the pads, calipers, and discs in the front since this began. I haven't checked the rear drums. Fluid is full in the transfer case, transmission and rear end...

 

Check the rear drums, ALL of the U-joints(7), wheel and axel bearings front and rear. It is not in 4wd, correct?