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2
votes
0answers
25 views

Clunk sounds in rear when A/C engaged - 2006 Subaru Impreza

First off, I don't have much experience with cars. I've googled the issue and have come up empty. I've got a 2006 Subaru Impreza Wagon with 170,000 miles. In the last month, a clunk has been ...
2
votes
0answers
40 views

Drive shaft Is loose?

My rear drive shaft (?) disattached on the road, making a really nasty sound. I managed to put it back in place. It is really loose, you can pull it out with hands. See before and after pics below. ...
2
votes
2answers
30 views

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

Where I come from the ISUZU FSR 33H is the preferred truck for transporting heavy construction materials. The truck is capable of hauling loads in the order of 6 to 7 tonnes. However I cannot help but ...
5
votes
2answers
632 views

Car with broken left driveshaft won't stay in park

Today my rear left driveshaft gave up (lots of grinding noise while in Drive or Reverse, coming from the left side of the differential, and the car won't move). One strange thing I noticed is that ...
2
votes
1answer
33 views

Can a bad rear differential hurt an automatic transmission?

I have a bad rear differential (one of the driveshaft seals is shot, and almost all the oil is gone), and I was wondering if this can affect my automatic ZF-6HP26 transmission.
1
vote
0answers
35 views

4WD Rear differential removed totally and have it a 2WD?

I have a 1997 Kia Sportage 4wd and it is having EXACTLY the problem that this pickup truck is having: (The sound the truck makes) https://www.youtube.com/watch?v=VJUSEH0opi8&index=3&list=...
1
vote
1answer
297 views

Rear wheel alignment on rear-wheel-drive vehicle

I recently got rear wheel bearings replaced on my 2005 Toyota Hilux (KUN26 frame) and now wondering if the wheels need alignment in order to prevent excessive tire wear. On the one hand, the rear ...
2
votes
1answer
520 views

Differential gear in tesla model S

Model S is a 2WD .... If this is rear wheel drive, what happens to the differential gear between the set of wheels at the rear? Are these differential gears replaced entirely by electronics? If so, is ...
2
votes
0answers
171 views

10 bolt to 14 bolt semi-float 6 lug swap - C1500

This seems like a long shot, but here goes.. I have read a ton of information on various blogs about the 10 bolt to 14 bolt conversion. The problem is that there is a ton of conflicting information--...
1
vote
1answer
87 views

new stage 1 clutch slipping after upgrading mag size?

~I installed a stage 1 clutch kit on my 07 Mustang v6. As long as the mags are 17's there is no issue, but as soon as I went to 18" with sticky pirelli's... the brand new clutch slips and over revs ...
1
vote
1answer
955 views

Can wrong size tire on both sides damage the differential

I mounted some tires to use as a burners to do some sliding so I don't burn my dailyes the car is a 93 Miata which is a RWD. The tires I mounted on the back are both from a civic but the tire size is ...
1
vote
0answers
95 views

Rear width of 1997 C/K 1500 (WMS to WMS)

The question is simple. I'd like to know what the width of the Chevy C/K 1500 rear is from wheel mounting surface to wheel mounting surface. Also, is it the same rear that is in the 1997 4WD S10 ...
3
votes
1answer
233 views

1989 S10 Blazer Rear end differential

I have a 1989 S10 Blazer with an open differential. Due to the lack of traction on ice i want to replace the open differential with a limited slop differential. I was wondering if someone could tell ...
7
votes
2answers
1k views

Changing fluids (power steering and rear differential): when and why

A few months ago I've bought a 2009 Honda CR-V and took it to the official dealer for a check. They told me that some fluids (power steering, brake and rear differential) are "dis-color" and need to ...
1
vote
0answers
68 views

Mitsubishi Pajero (suv) 1992 v6 3000 Differential Oil Leak

A few months ago I noticed that the rear differential was wet, with rigid oily soil.I used my screw driver to remove the stiff oily soil. the down part to the front of the car was wet. After removing ...
3
votes
1answer
884 views

Difference between Limited-Slip Rear Axle

What's the difference between 3.15, 3.31, 3.55, 3.73 TORSEN limited-slip rear axles? Been trying to build a nifty 2016 Mustang GT Premium Fastback on Ford's website, and can't quite understand the ...
2
votes
1answer
403 views

If I don't change pinion seal right away how much damage can be caused?

I have an '86 Jeep Comanche with a leaking pinion seal, I don't remember how long it has been leaking. I thought it was the rear differential gasket and changed that but it still leaks. Hope I can go ...
2
votes
1answer
81 views

1991 ford explorer 4x4 metal screeching

I just bought this vehicle, and it never did this when I test drove it. While I was driving it made this metal screeching noise, and second or two later the noise went away and the rear of the vehicle ...
5
votes
1answer
742 views

What is making this noise coming from the rear end of my car?

2004 Mercury Grand Marquis It starts to make a noise the faster that I go the more high-pitched the noise gets when you slow down the noise gets more low-pitched. It's coming from the rear of the ...
21
votes
2answers
2k views

How exactly does a differential work?

I understand that the differential (or "diff") is the thing that allows the drive shaft to transfer its rotational velocity to the front or rear axle in order to move the car. As far as I know, the ...
4
votes
3answers
11k views

Rear end Differential - rebuild or replace with used?

I have a 01 Ford F 150 with 320K miles. I love this truck and don't plan on ever selling it. I thought the bearings were going out in the back right side so I took it to mechanic. Two different ...
0
votes
1answer
335 views

hard shifting and snapping noise

I have a 2007 dodge ram 1500 hemi. When I accelerate hard I hear a slapping noise when it shifts, it also clunks when shifting if I let off the gas during a shift
1
vote
1answer
604 views

Small drip from the rear end of Ford F-250

I have a 2005 Ford p/u F-250 Superduty. I parked on a decline and I noticed the next day there was a very slow drip from where the drive shaft enters the rear end. Is this just a seal that needs to ...
5
votes
1answer
2k views

How to hack an on-demand rear diff locker on FJ Cruiser bypassing the ECU?

The Electronic Control Unit on my FJ Cruiser is not relaying the signal properly to the rear differential lock actuator when I switch it on. I want to bypass the ECU altogether and make the switch ...
2
votes
3answers
2k views

How to tell if an 08 CTS has a limited-slip differential?

I'm looking at purchasing a 2008 CTS RWD. From what I could gather from various forums, it sounds like a limited-slip was only included if you purchased the "summer performance tires" package. I ...
0
votes
2answers
359 views

Would it be worth it to rebuild my Detroit Locker?

I'm considering either buying a Wavetrac LSD (very expensive, so that's discouraging) or rebuilding my current Detroit Locker. The Locker seems to run fine except there's a lot of play in it. Would ...
1
vote
1answer
149 views

1996 Caprice Classic rear end rub a little and jumps barely while backing up

I noticed that, when my ’96 Caprice is backing up on smooth concrete, it kind of grinds and jumped just barely. Is it my gears in rear end? Any other issues could cause this?
1
vote
1answer
923 views

How do I check the fluid level in the rear end (differential) on a 1996 Caprice?

What is the procedure to check the fluid level in the rear differential? The RPO code for this particular rear end is G80.
9
votes
4answers
146k views

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

When we got an oil change, he said it's "leaking, but not out of fluid or low". Do we need to do any replacement/maintenance on it, or just wait until it gets worse? How would I check something like ...
1
vote
1answer
1k views

Replacing a LSD, what needs to be considered between 1, 1.5, 2 way?

I need to replace the LSD on a 1995 (NA series) MX-5. The original diff was a viscous LSD, and over time has deteriorated as I hear they do. It is now essentially an open diff, if I lift one wheel off ...
2
votes
2answers
3k views

Can i remove the rear diff in my land rover freelander?

recently the rear diff in my 1998 land rover freelander has gone (makes a horrible clicking sound around corners). The car has been a constant pain and i was wondering what is actually the cause of ...
1
vote
1answer
773 views

Differential Fluid Plug Right Above Catalytic Converter? - '99 Avalon XLS

Recently I was doing some routine maintenance on my 1999 Toyota Avalon XLS and when I was checking the 95k mileage procedures one of the items which caught my eye was replacing the differential fluid. ...
2
votes
4answers
20k views

Difference between “Hypoid” and “Limslip” oils

Recently I changed the oil in my vehicle's rear differential. The manual recommended the use of a "Hypoid" oil, but the guy at the auto parts store suggested a "Limslip" oil instead. I went along ...
17
votes
2answers
5k views

how to optimize fuel consumption by changing the rear differential ratio?

Is it possible to improve the fuel consumption (decrease it) in my van by changing the rear differential ratio? I would like to optimize it for low-speed driving about 40 km/h (25 mph). Is it true ...
2
votes
1answer
734 views

How to fix rear differential leak on 1974 Ford F250

I have a 1974 Ford F250 RWD that I use very rarely. I take it around the block once a month to make sure it still works. A while ago I noticed that the rear differential was leaking from (what ...