“Clacking” noise at low speeds and Bad Vibration at 80km/h that goes away at 108km/h.

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Zayshley

Junior Member
Joined
Sep 21, 2021
Posts
18
Reaction score
28
Location
Alberta, Canada
First Name
Gage
Truck Year
1976
Truck Model
K1500
Engine Size
6.6L 400sbc
Been having this issue for a while and I’m not quite sure what it is. Originally thought it was a bad rotor since it’d slow up at a certain point when rotating through the caliper but after replacing it, and the wheel bearings up front, the noise and vibration is still there. Not sure if it could be a bad u-joint or something. Don’t have a video or anything of it happening, but wanted to see if anyone had any ideas or suggestions.
- The vibration changes as the wheel rotates, it’ll be bad then smoothen out then be bad etc.
- Tires are balanced.
Here’s a random photo of my truck just because:
You must be registered for see images attach
 
Last edited:

ali_c20

Full Access Member
Joined
Sep 20, 2016
Posts
1,026
Reaction score
1,388
Location
Austria
First Name
Alexander
Truck Year
1974, 1979
Truck Model
C20, K5
Engine Size
350, 350
The u-joints are the only parts you didn't change so they could be cause of the vibrations.
 

Snoots

Full Access Member
Joined
Jan 23, 2013
Posts
8,190
Reaction score
16,049
Location
Georgia
First Name
Roger
Truck Year
1973
Truck Model
Jimmy Sierra
Engine Size
350
My moneys' on U-Joints.
 

fast 99

Full Access Member
Joined
Dec 31, 2021
Posts
1,629
Reaction score
2,207
Location
Spokane, Washington
First Name
Brian
Truck Year
81,85
Truck Model
K20
Engine Size
350
Yes, driveline vibrations will typically cycle in and out. Usually at double the speed of the first occurrence.
 

Latest posts

Forum statistics

Threads
42,136
Posts
909,933
Members
33,636
Latest member
ehef
Top