Skip to main content ↑ ↓
Topic: Transmission down shifting noise (Read 714 times) previous topic - next topic
0 Members and 1 Guest are viewing this topic.

Transmission down shifting noise

Yahoo Message Number: 16558
Hello,
This is my first post after a unsuccessful search of the forum. I have a 06 kodiak super c with an 8.1 engine and an Allison transmission. My problem is a clunk noise when the tranny downshifts at highway speeds going up hill. I've changed the tranny fluid and filter but with only 40000 miles I can't see it needing transmission work. Any thoughts would be appreciated.
Thanks
Paul

Re: Transmission down shifting noise

Reply #1 –
Yahoo Message Number: 16559
Did you check the U joints on the drive line?

Sent from my Verizon 4G LTE Droid

Re: Transmission down shifting noise

Reply #3 –
Yahoo Message Number: 16561
When you check the ujoints, check any carrier bearings and any slack in the differential input.