# Tires, bearings or? **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** chevrolet, suburban\ **Created:** [March 1, 2011, 3:16pm UTC](https://community.cartalk.com/t/tires-bearings-or/62047 "2011-03-01T15:16:43Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Joe8727](https://avatars.discourse-cdn.com/v4/letter/j/9d8465/32.png) [@Joe8727](https://community.cartalk.com/u/Joe8727)\ **Post date:** [March 1, 2011, 3:16pm UTC](https://community.cartalk.com/t/tires-bearings-or/62047/1 "2011-03-01T15:16:43Z")
I have a 2002 suburban . I have a humming noise coming from the rear . It starts at 45mph and then goes away at 47mph. I hear it again between 60-65 mph then goes away . This is a fauint sound . When pulling a trailer the sound is much more noticable and more constant from 55-64 mph . When I let off the gas the sound is still there and fades as the truck slows. Am I dealing with a bad tire ( I plan to rotate them to see if that is the cause ) or a wheel or axle bearing ? To note I replaced the front wheel hub/bearings just about a year ago . ---
**Author:** ![willey](https://avatars.discourse-cdn.com/v4/letter/w/a9adbd/32.png) [@willey](https://community.cartalk.com/u/willey)\ **Post date:** [March 1, 2011, 3:23pm UTC](https://community.cartalk.com/t/tires-bearings-or/62047/2 "2011-03-01T15:23:29Z")
I doubt it’s a tire, it sounds like a bearing making noise or the ring/pinion in the differential making noise. Have you checked the fluid level in the rear end? ---
**Author:** ![CapriRacer](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/capriracer/32/22_2.png) [@CapriRacer](https://community.cartalk.com/u/CapriRacer)\ **Post date:** [March 1, 2011, 5:27pm UTC](https://community.cartalk.com/t/tires-bearings-or/62047/3 "2011-03-01T17:27:17Z")
This sounds like bearings to me, too! But if you have the time - swap the tires front to rear. If the noise doesn’t follow the tires, it’s not them!