I have an automatic 97 Laredo and sometimes when I hit the gas, the rear of the truck shudders for a few seconds. I have no idea what it is, anyone have an idea?

Thank You

 

Do you mean really "HIT" the gas or just give it gas in general??

any mods?

 

no, just when i am driving normally. This is my daily driver. If i do hit the gas however it always does it. and no there are no mods.

 

I hate to say this, but have your tranny checked out. My 97 had the same trouble at anything but a soft peddle start and I found out my forward clutch was shot! It would act fine once it was rolling, but was a ***** on takeoff. It almost felt like the tires were chattering on the pavement, so I thought it was the diff or something.

You know why men think of cars as women? One little mistake and they'll never let you forget it!!

 

Hmm, i don't THINK its the trans...

sounds more like the drivetrain, spec. your driveshaft, bad U joints, bearings, gears, it could be anything.

post a video or be a little more specific, it'll help us out alot!

 

ding ding ding!

No reason to jump right to tranny, check the driveshaft. It don't take much to cause something like this. My buddy was convinced his trans was out because once he would hit around 25 there was a loud banging/rapping sound that would get worse as he acceletared and pound in the floor.

had fishing line on the driveshaft LOL

 

Is the rear diff. a posi trac? Most posi's reguire a friction modifier additive thats available from dealer or Napa stores and its required every so often to help the clutchs release, gives the same symtoms you describe. Chevokeeman.