4l60e clunks when shifting

[Dust92]

Hey everyone, I've got a 94 gmc with the 4l60e and it clunks when shifting from 1st to 2nd. It isn't smooth at all. Does anyone know what is causing this? Thanks for the answers in advance.

 

[1997chevydriver]

It clunks? I would imagine if a Trans is clunking something is about to give out...........

Sent from somewhere in MN

 

[great white]

Check transmission and engine mounts before going into it further....

 

[SilveradoGuy85]

Mine did that but only did it after being on the interstate for maybe at least 5-10 miles or just steadily going for maybe 20 minutes without stopping. I was able to stop it by pulling over and get to a stop sign/light and turn it off for a few seconds, then when I cranked it back up it shifted perfect. I went to the local transmission shop I forgot what they said exactly but they said it would have to be rebuilt to fix it. Well now it's out so I need it rebuilt for sure. So does yours do it all the time or after the transmission heated up some? If it's all the time then it's probably a mount like "great white" said. If it's after it heats up some then it's something in the transmission and will eventually need to be rebuilt.

 

[Dust92]

Do y'all think it may be because it has the tow package?
Btw SilveradoGuy85, you anywhere near Ahoskie, NC?

 

[great white]

Nope.

 

[94Sierra4x4]

Definitely not because of the tow package.
Does it clunk when coming to a stop or taking off? or just on the 1-2 shift?

 

[sewlow]

Try checking the universals, too!

 

[SilveradoGuy85]

Do y'all think it may be because it has the tow package?
Btw SilveradoGuy85, you anywhere near Ahoskie, NC?

Ya, roughly an hour West of there. I'm right on I-95 and 10 miles from the VA line.

 

[Dust92]

It's when taking off quick, 1st to 2nd.
Oh, near Emporia, VA I imagine?