Nick1994
$100 site donor 2024
I've had this noise for some time with my Jeep, but it was always after a drive on the freeway and getting off, slowing down to a low speed. It's a scraping, kind of growling noise. I didn't think much of it, and have since replaced the wheel bearings, rotated the tires, and put new brakes on it. Backing plates aren't rubbing. I'm thinking it's the carrier/pinion bearings in the front Dana 30 axle. Starting last week I went to drive it and the sound now appears at low speeds, even when driving from a stop. It's loudest from 5-25 mph, from then on I can't really hear it, it is a Jeep after all, not the quietest machine. It also makes the sound when cold, like right when pulling out of the garage. It got louder last week as I drove it a couple times. Front gear oil is Mobil 1 75w90 with maybe 8k miles on it.
Last week after driving 30 miles home from work, I crawled underneath and felt that the front differential was quite hot, as in I couldn't leave my hand on it. The front wheels were cool to the touch. I then went and felt the rear differential, it was pretty warm too, but I could leave my hand on it.
I've called some differential shops and an off-road shop and got some prices for replacing the 2 carrier bearings and 2 pinion bearings, as well as the seals. Pricing I'll list below.
$600 at AZ Differential Specialists (They rebuilt my brother's Jeep's front axle)
$800 at AZ Driveshaft (They rebalanced my driveshafts and replaced the U-Joints last year)
$630 at 4Wheel Parts
$550-$575 at Arizona Differential
$1,200-$1,300 at Jeep dealership
Any other types of shops you guys would recommend? Other off-road shops? Other types of automotive repair shops? I want a shop to do it since the backlash might change, I don't want to have to replace the gears.
Thanks. Video of noise below, I taped an old iPad to the hood and drove down the street at 15 mph, engine is off and transmission in neutral. That isn't tire noise or wind noise. Must be bearing noise.
Last week after driving 30 miles home from work, I crawled underneath and felt that the front differential was quite hot, as in I couldn't leave my hand on it. The front wheels were cool to the touch. I then went and felt the rear differential, it was pretty warm too, but I could leave my hand on it.
I've called some differential shops and an off-road shop and got some prices for replacing the 2 carrier bearings and 2 pinion bearings, as well as the seals. Pricing I'll list below.
$600 at AZ Differential Specialists (They rebuilt my brother's Jeep's front axle)
$800 at AZ Driveshaft (They rebalanced my driveshafts and replaced the U-Joints last year)
$630 at 4Wheel Parts
$550-$575 at Arizona Differential
$1,200-$1,300 at Jeep dealership
Any other types of shops you guys would recommend? Other off-road shops? Other types of automotive repair shops? I want a shop to do it since the backlash might change, I don't want to have to replace the gears.
Thanks. Video of noise below, I taped an old iPad to the hood and drove down the street at 15 mph, engine is off and transmission in neutral. That isn't tire noise or wind noise. Must be bearing noise.
