Shudder 4wd Truck shudders when driven in 4 wheel drive, only had it at very low speeds due to this. When turning, sounds like tires momentarily lock up and release. Very jerky/jumpy. Occasionally shudders when in 2wd when accelerating briskly, but just for a half a second. Changed transmission fluid, rear diff. fluid, xfer case already. Plan on vacuuming front diff fluid tomorrow. Am I on the right track?

did you turn the locks on the wheels, or check the fuses

because you are riding the clutch for control while backing up then any imperfections in the clutch area will result in this shudder. These imperfections can be oil./ grease on the clutch lining, burn marks on the flywheel/ pressure plate faces . It may also indicate a failing rear engine mount or other engine mounts . If it is not a hugh problem but an annoyance then might I suggest that you use 2wd low or 4wd low as this reduces the stress on the clutch and you can fully engage the clutch while maintaining control at a lower speed.

what shudders.
1: body (yours ,her's or its)
2: engine,
3: steering
4: shifter level, pedals, doors flap /and shudder,as driven.
5: or wife due to driven too fast or (excited? LOL)

tires out of balance or a bad wheel bearing

could be a shifted belt in one of the tires. could also be a cv axle that is binding. have it looked at by a pro. good luck

doesnt seem like bearings to me ,could be the ABS though ,i would need to drive it really to have any idea.Ask a local mechanic for a second opinion

If it only occurs while turning then check into the rear axle limited slip grabbing to much. If its AWD and it only occurs while turning then the circumfrence of your tires are to different or the viscous coupling i nthe transfer case is locked up.

lower control arm, rubber bushings worn, common problem, can be intermittent

check wheel bearings as well.

A Dodge Dakota with 4-wheel steer? Do you happen to mean 4-wheel drive?

If so, you should not operate the vehicle in 4-wheel drive when you are traveling on a hard, high-traction surface. When in 4x4, the transfer case connects the front and rear axles, and does not allow for differentiation of wheel speeds necessary when turning. This is compensated for when driving over low-traction terrain because the tires slip easier.

Basically, the jerking, bucking and locking of the truck is due to the binding. This will eventually lead to damage in the driveline. If the roadway isn't covered in snow, there is no need for the 4 wheel drive to be engaged.

The P0308 could be showing up because of the torque converter shudder. Go to your local trans shop, or parts store and get a bottle of Smart Blend. It is the best additive for TCC shudder. Do Not put anything else in your trans. This stuff works, and it is the only additive recomended by GM, and Dodge.. It is not but about $10, if your converter in not to far gone this will help. If it is all you are out is $10. Good Luck.