so i am having and issue...when i put my jeep in to drive, automatic trans, it make a very hard jerk, just when it is under initial load, either in reverse or drive.. i just changed trans fluid and filter, it was doing it before i did the change, all fluid levers are fine, checked diff, and transfer...and it shifts fine going down the road..but its like a really hard jerk when you put it into gear the first time...any thoughts???

 

Mine did similar and it was a broken u-joint in rear shaft

 

Yup, sounds like a u-joint.

 

Get your grubbies, grab a flashlight, and crawl under your Jeep to have a look-see.

 

thanks for advice =] went under and look at the u joints, they were not broken, i put grease on them, and shifted a few times, it isnt completely gone, but its a lot better than what is was. thanks