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Guest Message by DevFuse

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Removing rear differential bolts

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5 replies to this topic

#1 Rooster2


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Posted 21 March 2009 - 01:40 PM

Well this was weekend #2, in my effort to remove the rear diff bolts to replace the diff oil. Today, I went to Harbor Freight, bought their half inch electric impact wrench. With repeated effort, I could not loosen the bolts either trying to loosen or tighten. So, tried someone's earlier suggestion of using a jack to lift the breaker bar handle. Nope, that didn't work. All I was doing was jacking the car up from from the suspension, and the bolt was not turning.

I had used some Liquid Wrench spray last weekend, but didn't use it today. It is difficult to get the spray to penetrate the bolt threads, when the bolt head is turned upwards 90 degrees from the ground. The spray just wants to drip off the bolt and onto the ground.

Well, anyway, I have a buddy that will be back from vacation soon. He has an air impact wrench. Maybe that will loosen the bolts.

Any useful idea most welcomed! Thanks!

#2 crash321


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Posted 21 March 2009 - 02:04 PM

apply a little heat around the bolt to get it to loosen, usually does the trick.

#3 Rooster2


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Posted 21 March 2009 - 04:30 PM

a good idea, Thanks!

#4 Twitch de la Brat

Twitch de la Brat

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Posted 21 March 2009 - 09:21 PM

It sounds like you need a BFH.
Or a ten foot pipe to put on the end of your wrench.
I personally like PB Blaster.
It eats through rust pretty fast.
The heat idea is good, just make sure the area is clean before
applying the torch. ;)


#5 1997reduxe


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Posted 22 March 2009 - 08:37 AM

I had problems with my old bolts on my 97 a while back.
There was this machine shop in town that for like 20 bucks
or so would break all the bolts for for example the brakes
or the struts.
I first went to them when I broke a bolt off of brake caliper,
and they got it out and then broke bolts etc. Even they broke
another one in process, but they had the tools to fix it.

#6 Quidam


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Posted 22 March 2009 - 01:12 PM

"Any useful idea most welcomed!"

Man, if it's that tough...you could just remove and replace the cover with another one. Depends on whether another is readily available, cheap, free.


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