Question about 1984 Ford Ranger

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What gear lube should i use in the rear differential on a 1984 ranger?

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  • Contributor
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A good 89/90 wieght gear lubricant is available at most auto parts stores in 1 quart bottles. You might also need to purchase a 2 foot piece if of 5/16" fuel or vacuum hose to aid in getting the oil into the differential.

Posted on Sep 26, 2009

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  • Ford Master
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Approximate refill capacity. Axles should be filled to 1/4-9/16 inch below the filler hole.
b Plus 4 ounces Friction Modifier, C8AZ-19B546-A (EST-M2C118-A) or equivalent for Traction-Lok® Limited-Slip Applications

I believe it's just gear oil, 90W

Posted on Sep 26, 2009

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  • Master
  • 636 Answers

90w gear oil

Posted on Sep 26, 2009

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Posted on Jan 02, 2017

emissionwiz
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SOURCE: 2003 rear differential

I am a Ford tech and the diff doesn't need to be serviced (new lube) unless it is torn down or it has a leak, however it is my opinion that under heavy usage such as towing it should be serviced at around 60,000.

Posted on Sep 22, 2008

emissionwiz
  • 75077 Answers

SOURCE: leak at rear diff (pinion seal?) 03 4X4 ford ranger

the part is called the pinion flange seal, pull the drive shaft, remove the large nut on the flange the drive shaft connects to and remove the flange, then pry out the old seal and lube the lip of the new seal with motor oil and press it into the opening. The 7.5 hour estimate is way wrong, about 1.5 hours labor and $4 for the part.

Posted on Apr 23, 2009

  • 34 Answers

SOURCE: what differential fluid goes into rear diff on

85w140

Posted on Feb 08, 2010

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1 Answer

How do you remove rear axle from 1995 ford ranger 2 wheel drive need to replace oil seal


Raise the vehicle and properly support it. Remove the wheel and drum. Remove the rear diff cover, have a drain pan underneath to catch the gear oil. Place the trans in nuetral, chalk the front wheels to keep vehicle from moving if you forget to put it back into park befor you lower the vehicle. Rotat the differential until you see the bolt that holds the diff pin in place. Remove the bolt, 5/16 or 8 mm I believe. You can then remove the diff pin, do not rotate the diff with the diff pin removed! Push the axle in, you can then remove the C-clip that holds the axle to the side gear, it will usuall drop or just fall out. Pull the axle out of the rear diff and replace the seal. Put everything back together. Use black or grey RTV to reseal the diff cover making sure o clean up both surfaces as best you can. Put trans in park. Lower the vehicle. Remove the fill plug from the side of the differential and fill with gear lube until lube comes out the hole. Reinstall the plug and your good to go. Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!

Mar 15, 2012 | 1995 Ford Ranger Supercab

2 Answers

How do I change my rear end fluid or check it? And what kind of differential fluid would i use for a limited slip rear end?


To check the fluid there wil be a plug on the side of the Reese diff housing. Use w 3/8" ratchet to remove the plug. The fluid should be level with the button of the hole. To change the fluid first remove the fill/check plug as described above. You always want to make sure that plug comes out first so you know you can fill the diff after your done. Then place a drip pan under the read diff and remove all the bolts that hold the diff cover top the diff housing, roughly 10-12 bolts. Then carefully pry the pan away from the housing. Let the gear lube drain while you cean the gasket meterial from both the cover and the differential housing. You can either get a new gasket or you can use a good RTV type gasket maker. I prefer the higher end GREY products myself. Lay a pencil size bead around the differential. Reinstall the cover tightening the bolts to just barely snug. The RTV should just start to push out from behind the cover. Let it sit for about a half an hour and then do the final tightening. I am almost 100% positive that the rear diff talks regular 80/90 weight gear lube. Your local parts store will be able to conffirm the correct lube and the quantity, approximately 2-4 quarts depending on what size ring gear you have.

Jun 26, 2011 | 1998 GMC Sierra

1 Answer

How to remove a rear end axle and change a rear wheel seal?


Remove the rear diff cover (use a pan under there ...it's full of gear lube).Rotate the diff till you can see the pin that holds the spider gears in place. At one end of the pin, you will find either a roll pin or small bolt that retains it. Either drive the pin out or un bolt it (depends on what you have), then remove the pin. (careful when rotating carrier after it's out or, the spider gears will fall out. After it's out, DO NOT rotate the carrier or the same thing can happen. Dont turn the driveshaft or axle). Push the axle in and the "c" retainer on the axle will fall out. If not, help it a bit so it does. You can then remove the axle and access the seal.
After the seal is out, check to make sure there isn't any metal debris behind it. That indicates that not only the seal is bad but the bearing as well. Keep the new seal square with the axle tube so it goes in straight. Put some lube on the seal so it doesn't self destruct before lube reaches it. Remainder of the job is the reverse of removal. Don't forget to re-fill the diff before using it.

May 04, 2011 | 1991 Jeep Wrangler

1 Answer

I have a 98 ford f150 4wd rear diff is howling bad under load and coast no noise at no load had bad rear axles and brgs even though i didnt think this would fix it i replaced them as i expected, no...


the bad bearings and axles probably caused damage or wear to the gears / pinion when under load the bearings keep the axles straight and keeps downward pressure from loads off the gears and gear bearings --look at gear mesh will probably be off very slightly and not from backlash shims but from ring gear bearings or pinion bearing damaged

Apr 26, 2017 | Ford F-150 Cars & Trucks

1 Answer

My 1984 Ford rangers Emergency brake will not go down. It feels as if it is stuck in place and I need to fix it for it to pass inspection


Your emergency brake wires are rusted and need to be replaced. While you have the rear wheels off it won't hurt to clean and lube the mechanical brake parts.

Sep 02, 2010 | 1984 Ford Ranger

1 Answer

Rear differential leaking


Gear lube is SAE 75W-90 GL-5 gear lubricant. If you have a limited slip diff, add 4 oz of limited slip additive.
Torque cover to 15-20 ft-lbs.

May 21, 2009 | 2001 Dodge Durango

3 Answers

Rear end


clunking or grinding noises, wont accelerate to full potential,

May 07, 2009 | 2001 Ford Ranger Regular Cab

1 Answer

Leak at rear diff (pinion seal?) 03 4X4 ford ranger


the part is called the pinion flange seal, pull the drive shaft, remove the large nut on the flange the drive shaft connects to and remove the flange, then pry out the old seal and lube the lip of the new seal with motor oil and press it into the opening. The 7.5 hour estimate is way wrong, about 1.5 hours labor and $4 for the part.

Apr 23, 2009 | 2002 Ford Ranger Regular Cab

1 Answer

Need to replace rear end in 1994 jeep grand cherokee v8 5.2


Pretty much a bolt out-bolt in deal...Most critical part is actually making sure that you obtain a diff with the exact gear ratio as the one you are replacing. Count teeth on ring gear and pinion gear, divide ring gear # by pinion gear # and you will get a number (like 3.23, expressed as three twenty three to one) Diffs come with a tag on diff cover but many times tag gets lost if unit is serviced.
Use flair nut wrenches on all hydraulic fittings, Plenty of wd40 on all hardware and support the body and diff while working so it does not fall on you while doing the job. Regardless t if it came with lube in it, change lube and make sure it's properly filled.
Sometimes you will need to push and pull a bit to get bolt holes to align when installing. It's easier to do if you do not tighten anything fully till every bolt has been installed.
good luck, any specific questions? just ask...

Apr 13, 2009 | 1994 Jeep Grand Cherokee

1 Answer

2003 rear differential


I am a Ford tech and the diff doesn't need to be serviced (new lube) unless it is torn down or it has a leak, however it is my opinion that under heavy usage such as towing it should be serviced at around 60,000.

Sep 22, 2008 | 2002 Ford Ranger Regular Cab

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