1999 Chevy Suburban shaking

[anonymous35]

I have a 1999 Chevy Suburban 4WD. I had the transmission replaced about a month ago. Every since I got the truck back the truck shakes or vibrates at a certain speed. Usually it shakes between 50-60 mph. If I have to take off slower in the traffic it starts to shake between 40-50. But today since I did a lot of stopping and starting, it would begin to shake as I took off, but then would pull out at about 20 miles per hour. And it would still shake at 40-50 if I did not get the speed picked up fast enough. Now when there is no traffic on the road and I can drive normally, I can go from 0 -60 with no problems at all. But since the traffic is usually so bad, I almost always feel it between 40-50 and 50-60. It will then act like it got a burst and take off just fine and run normal. What could be the cause for all of this?

 

[VanGo]

Did they forget to reattach the transmission mount? look for missing bolt(s)

 

[zora]

do you have a check engine light on?

 

[anonymous35]

No, but my Anti lock brake light has been coming on. Then it will shut off if I shut the truck off. And when I restart the truck it stays off.

 

[anonymous35]

Did they forget to reattach the transmission mount? look for missing bolt(s)

I have no idea what or where that is. (I am a girl) =)

 

[zora]

Is there a reason why you just don't take it back and ask the shop to check?