Skip the auto shop - Our mechanics make house calls

Q: Dana35 rear differential pinion bearing is shot and not sure if it can be pulled through the hole for the drive shaft

asked by on

Took a side impact after which a wobble sound started coming from my rear end. I replaced Right side axle shaft and drum backing plate, shoes, springs and drums, but noise still there. Mechanic said it's the pinion bearing. There has always been a boom from the rear end when I put the car in reverse which corroborates this? So is it likely to be the outer pinion bearing by the driveshaft or the inner one behind the spider gears? Can pinion bearing by driveline be pulled through the axle hole? or would it be necessary to take apart differential and gears either way (inner pinion bearing or outer), because if so I think I'll have to change rear end. Thanks.
My car has an automatic transmission.

You have two pinion shaft bearings. The one that can be replaced by removing the driveshaft and flange on the rear end. You remove the seal and the bearing can be removed. The bearing race cannot be replaced this way if it is damaged. You have to disassemble the rear end and remove pinion shaft to knock out the race, and then you might as well replace the inner pinion bearing and race. The carrier would need to be removed for access and then you have access to the carrier bearings. The two outer axle bearings and seals should then be replaced, or you could replace the complete rear end. If you would like to have this looked at, an expert technician from YourMechanic can come from your location to give your car a comprehensive inspection and advise you on the correct repair.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Dana35 rear differential pinion bearing is shot and not sure if it can be pulled through the hole for the drive shaft

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car misfires

Hi there. Though misfires can be caused by a number of reasons, a misfire that is present only when the vehicle is first started only has a few common causes. Most of the time this is caused by oil or...

Q: Constant humming when above 35 mph

With less than 50,000 miles on your 2013 Jeep Patriot, a constant humming above 35 miles per hour is a concern. My first guess would be wheel bearings (like you checked), or perhaps a disc brake pad that was stuck....

Q: knocking before wanting to start

It sounds to me like the timing belt is broken. If so, the engine is cranking over until the piston strikes the valves in the cylinder head and causes the engine to bind up until the starter gear skips across...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.