Rear End Differential Fill Plug
Thread Starter
Instructor
Joined: Jun 2005
Posts: 100
Likes: 0
From: Morton Grove Il
Rear End Differential Fill Plug
About a week ago I had the left rear wheel bearing go out. I have rebuilt both trailing arms. The bad wheel bearing almost fell out, Had the spindels checked. Both OK. I rebuilt both trailing arms with the help of GTR1999. Gary was a big help. His instructions helped me walk through the backlash setup. I replaced all 4 universals, and all of the bushings.
Now to my problem. I want to replace all of the rear end fluid. I cannot get the fill plug to move. The square plug is going to round off If I continue to try to move it. I have let it soak in PB Blaster and will continue to try on the round portion of the filler plug. Does anyone have any bright Ideas?? This forum and it's members have helped me out in the past. You are a great bunch. Is the rear end Aluminium???
If so it has probably siezed. Always use anti-sieze. Thanks
Now to my problem. I want to replace all of the rear end fluid. I cannot get the fill plug to move. The square plug is going to round off If I continue to try to move it. I have let it soak in PB Blaster and will continue to try on the round portion of the filler plug. Does anyone have any bright Ideas?? This forum and it's members have helped me out in the past. You are a great bunch. Is the rear end Aluminium???
If so it has probably siezed. Always use anti-sieze. Thanks
Le Mans Master
Joined: Jan 2000
Posts: 8,918
Likes: 27
From: New Hill NC
You know, it would be nice if you folks would say what year car you are asking about. If it is the `73 thats in your profile, then, no, its not aluminum. Are you using a correct square 8 point socket to get the plug out?
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
4 point socket--Buy one! Or if your car is drivable go to a quick lube and ask them to loosen it for you.Its a taper thread so I doubt if PB will do anything its pretty well lubed on the inside.
Last edited by ...Roger...; Jun 19, 2007 at 02:08 PM. Reason: spelling
Cruising
Joined: May 2006
Posts: 11
Likes: 0
Tack Weld A Nut On The Drain Plug
The Heat Will Help Break It Loose
Don't Get Carried Away - Just Tack It In Place
The Drain Plug Is Steel , After It's Out
Buy A New Drain Plug - I Have Done This
Many Times, It Works!!!
The Heat Will Help Break It Loose
Don't Get Carried Away - Just Tack It In Place
The Drain Plug Is Steel , After It's Out
Buy A New Drain Plug - I Have Done This
Many Times, It Works!!!
Burning Brakes
Joined: Oct 2002
Posts: 971
Likes: 0
From: Rockwood TN
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Thread Starter
Instructor
Joined: Jun 2005
Posts: 100
Likes: 0
From: Morton Grove Il
Thanks
Yes it is a 73. Sorry about not stating that earlier. I did remove both parts of the spare tire holder. I will buy the socket today and if that does not work I will tack a nut on and try that. Thanks for all of the good advise. This forum is great.
Instructor
Joined: Feb 2006
Posts: 119
Likes: 0
From: Atlanta GA
One way that should work but will require soe extra time.....
Drop the spare tire holder, remove the spare, remove the spare tire holder from the car (two bolts) and then you have great and clear access to the diff fill bolt....you can place a rachet on the bolt and use a two or three foot pipe wrench over the rachet to gain the leverage to reove the stubborn bolt. I did this and it worked well.
Just be catious when placing the bolt back in as it's easy to crossthread and tighten the bold down before you re-install the spare tire cover. However, I'll be honest....its a PITA to remove the diff fluid with a siffon. Take your car to a decent shop and they have vacum pumps to get all the fluid out and may even do the job for $25 if you call around. Be sure to use posi-slip gear addative when you replace the fluid. YOu can buy some off the shelf at the auto-store or go with GM brand.
Drop the spare tire holder, remove the spare, remove the spare tire holder from the car (two bolts) and then you have great and clear access to the diff fill bolt....you can place a rachet on the bolt and use a two or three foot pipe wrench over the rachet to gain the leverage to reove the stubborn bolt. I did this and it worked well.
Just be catious when placing the bolt back in as it's easy to crossthread and tighten the bold down before you re-install the spare tire cover. However, I'll be honest....its a PITA to remove the diff fluid with a siffon. Take your car to a decent shop and they have vacum pumps to get all the fluid out and may even do the job for $25 if you call around. Be sure to use posi-slip gear addative when you replace the fluid. YOu can buy some off the shelf at the auto-store or go with GM brand.
Burning Brakes
Joined: Feb 2006
Posts: 1,024
Likes: 1
From: AL
use one of these,
http://www.amazon.com/Lumax-Suction-...2360962&sr=1-1
you can find them at a local parts store for even less sometimes . . .
http://www.amazon.com/Lumax-Suction-...2360962&sr=1-1
you can find them at a local parts store for even less sometimes . . .
Pro
Joined: Dec 2006
Posts: 665
Likes: 0
From: wilmington nc
If you get the pump that goes on a gallon jug, you can add a piece of tube to the part that goes in the jug and use it to pump out the old oil then put it back on the gallon jug to pump in new oil works much, much, much better than a siphon pump i have both trust me the one that goes on the gallon jug makes it a piece of cake!!!!!!!!!
Pro
Joined: Apr 2006
Posts: 647
Likes: 22
From: Norwalk CT and Boynton Beach FL
If you get the pump that goes on a gallon jug, you can add a piece of tube to the part that goes in the jug and use it to pump out the old oil then put it back on the gallon jug to pump in new oil works much, much, much better than a siphon pump i have both trust me the one that goes on the gallon jug makes it a piece of cake!!!!!!!!!
Pro
Joined: Dec 2006
Posts: 665
Likes: 0
From: wilmington nc
Local auto parts store has these pumps, the gallon jug does not come with the pump, a old windshield washer fluid jug works good, just replace the short hose that goes inside the gallon jug with a longer piece of hose to remove old oil.
Pro
Joined: Jul 2005
Posts: 592
Likes: 0
From: ElP TX
use one of these,
http://www.amazon.com/Lumax-Suction-...2360962&sr=1-1
you can find them at a local parts store for even less sometimes . . .
http://www.amazon.com/Lumax-Suction-...2360962&sr=1-1
you can find them at a local parts store for even less sometimes . . .
