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6 votes
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Car with broken left driveshaft won't stay in park

While the other answer is basically correct, it really doesn't tell you why it does this. These two things are related because of the differential. The differential is made to allow either side to ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
6 votes
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How to adjust pinion bearing preload

First, what you were planning to do isn't correct. The problem is, to correctly get the preload set, you have to measure the torque at the pinion. Also, you should NOT reuse the same crush collar if ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
5 votes
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Disintegrated differential bearing: can it be blamed for pinion clanking over the ring gear?

In a word: Absolutely. The bearing you are pointing out is the carrier bearing for the differential, which keeps lateral movement (forward/aft) of the ring gear to a minimum (if not non-existent). If ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
3 votes
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How can I tell when my rear differential fails and what are the consquences?

When the rear diff fails, one of two things can occur which will let you know it's gone south: Noise: - When driving, you'll be hearing a lot of noise from the rear, especially when going around a ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
3 votes

Car with broken left driveshaft won't stay in park

Yes it is related, both drive shafts (cv shafts) must be connected and in working order for park to work, use the e brake like you have been. Replace the cv shaft and all will be working again.
Moab's user avatar
  • 8,000
3 votes

1989 S10 Blazer Rear end differential

You need to discover what your current rear differential is, then you can proceed forward with what you might be able to do for the Blazer. If I'm seeing things right, your rear end should be of the ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
2 votes
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Differential gear in tesla model S

No. The differential gear business is not in danger because of electric cars. All electric cars from reputable manufacturers use differentials, mainly for two reasons: Using a differential allows to ...
juhist's user avatar
  • 15.3k
2 votes

Cause of weird wheel failure on homemade utility trailer

I have seen that before but NEVER to that extreme! I am amazed that the wheel did not fall off as it doesn't appear that anything, other than just the edges of the nuts, is holding this wheel on. My ...
jwh20's user avatar
  • 12.1k
1 vote

Changing rear differential fluid - Is there need to top-off the fluid?

I fill my diffs until the oil starts leaking out of the fill hole. The manual for my car says that 'full' is 5mm (or so) below the fill hole, which is impossible to accurately do. So filling until ...
ched's user avatar
  • 11
1 vote

Chains hanging from rear axle of trucks

Theoretically, they discharge static electricity, so you don't get a shock when opening the doors, etc. Whether they really work, I'm not so sure. Vehicles where static electricity is a real issue (...
alephzero's user avatar
  • 2,974
1 vote

What causes rear axle shaft breakages in heavily loaded trucks on uphill shifts?

Stress causes the failures. Stress may also cause fatigue cracks prior to fracture. Use a stronger material and/or a larger diameter axel. Also any notches / diameter changes are critical as they are ...
blacksmith37's user avatar
  • 3,733
1 vote

Drive system play in a RWD vehicle

What you are describing as "play" is called "backlash" and is a characteristic of most gear drive systems. In the case of a differential, there is a specific procedure for ...
jwh20's user avatar
  • 12.1k
1 vote

How would a car move if it has two different tire sizes

How would the car move if it is driven? It will move in the direction decided by the position of the front wheels. 2. Does the differential neutralise the tire size difference? The ...
Solar Mike's user avatar
  • 34.7k
1 vote
Accepted

How to tell if a 4WD vehicle features LSD and/or ADD?

Jack up the front end and spin one tire by hand. If the other tire spins in the same direction, you have an LSD. Examine the area next to the front differential. If you have a square housing and ...
SteveRacer's user avatar
  • 12.4k
1 vote

Safe to drive a car that have back diff leak?

I've had diffs that leaked until I got around to sorting the gasket... But if the pinion seal is pouring the oil out then it needs to be done as soon as.. So, should be fine until the 17th but get ...
Solar Mike's user avatar
  • 34.7k
1 vote
Accepted

Can a bad rear differential hurt an automatic transmission?

As Moab states in the comments, a bad rear differential cannot hurt an automatic transmission. The only thing attaching them is a driveshaft. Other than that, they are completely independent ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
1 vote

Rear wheel alignment on rear-wheel-drive vehicle

Rear wheels can be put out of alignment by hitting kerbs etc. Fitting hub bearings, either semi, 3/4, or fully floating types does not affect the alignment, but collapsed bearings will - however ...
Solar Mike's user avatar
  • 34.7k
1 vote
Accepted

Can wrong size tire on both sides damage the differential

No you should be ok with different sizes on the rear compared to the front. Having each side the same is better for your diff. Especially for normal driving where you have traction on both wheels as ...
Sir Swears-a-lot's user avatar
1 vote

Mitsubishi Pajero (suv) 1992 v6 3000 Differential Oil Leak

There are 3 different „hoses“ enter diff case in Pajero. 1. air for diff lock, 2. diff breather hose. These 2 goes into the car body. 3. wiring which goes around the diff and then to the left arm and ...
JimJohh's user avatar
  • 91
1 vote

Do I need to replace rear differential if it's leaking?

You've gotten some good advice already, such as monitor the leak in order to determine how often to check the fluid level in your rear end and get the leak fixed a.s.a.p. If it's coming from one of ...
B.C.'s user avatar
  • 11

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