94 850 drive axle nut question

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.
1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
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skippythepuppy
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Location: northern california

94 850 drive axle nut question

Postby skippythepuppy » Thu Jun 03, 2010 8:10 pm

hi everyone and thanks for checking my post.

I'm going to replace my left front drive axle and I'm checking out the nut which my haynes manual says is a 20mm nut on pre 95s and 22mm on later models. I don't have a socket to fit this thing so i went to our po-dunk hardware store and of course they have no metric sockets. It appears that it is about 1 7/16" they don't have this size. So what size is it? To me the 20mm that the Haynes manual refers to is actually the diameter of the axle shaft and the service side of the nut measures about 35mm. I'll need to order one online so can anyone confirm 35mm as the correct size of socket that I need to order and if anyone has suggestions of where to order that.

I love living in a rural area, but it sucks not to have an auto parts store in town

thanks for the help

whoa
Posts: 461
Joined: Wed Jul 30, 2008 5:00 pm
Year and Model: 850 Turbo Wagon 1996
Location: san francisco

Re: 94 850 drive axle nut question

Postby whoa » Thu Jun 03, 2010 8:28 pm

I had thought that it's 36mm for all years of the 850, but I see people saying 34mm and 32mm for some earlier axles.
1996 850 Turbo Wagon

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charlyW
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Location: Norwich, UK

Re: 94 850 drive axle nut question

Postby charlyW » Thu Jun 03, 2010 9:40 pm

for my 93 850 N/a I used a 34mm socket never use an imperial socket on a metric bolt/nut
855 T-5 RHD Blue: MBC, Custom Map based on Rica, K&N Filter, 18T Turbocharger, White/Green injectors [depends on my mood], Blue Silicone vacuum hoses

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JimBee
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Re: 94 850 drive axle nut question

Postby JimBee » Thu Jun 03, 2010 10:18 pm

Last summer I changed my drivers side axle on my '93 850. I think the socket was a 36mm. I borrowed one from Auto Zone. They required a deposit but returned it when I brought the socket back.

BTW: Auto Zone stocked a pretty good assortment of large sockets for loans.


patrioty3k
Posts: 134
Joined: Tue Dec 23, 2008 12:27 pm
Year and Model: 1995 850 Turbo Wagon
Location: Southwick Ma.

Re: 94 850 drive axle nut question

Postby patrioty3k » Fri Jun 04, 2010 12:08 am

:D Remembering correctly that nut is torqued at 300 ft. lbs.,believe me,i broke a 1/2" braker bar with a cheater pipe :oops: Need impact/ air wrench!
1995 850 Turbo S/Wagon,Alpine head w/Sirius Sat. Radio--"OCTANE" power!
200K $400 Sleeper...nuff said!

850tech
Posts: 123
Joined: Fri May 07, 2010 11:58 pm
Year and Model: 1995 850 Turbo 5spd
Location: Canada

Re: 94 850 drive axle nut question

Postby 850tech » Fri Jun 04, 2010 12:51 am

The torque spec is 120 Nm (89 ft. lbs) + 60°
Do not over torque, and DO NOT use and impact gun as this is the leading cause of premature bearing failure. In fact most bearings come with a little warning in the box about impact gun usage due to so many bearing failures and warrenty claims.
You can use a gun to bring the nut close but always tighten to spec.

Sorry forgot socket size. Mine are 36mm but that said some aftermarket come with 32mm or 34mm, I've seen 32mm and 36mm on the same car from one side to the other, so unfortunatly I can't say with certainty what size yours may be.

skippythepuppy
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Joined: Sat Sep 20, 2008 7:00 pm
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Location: northern california

Re: 94 850 drive axle nut question

Postby skippythepuppy » Fri Jun 04, 2010 7:10 am

Thanks for all your replies,

I had hoped it would be a little more straight forward of an answer 36mm, 34mm, 32mm. we will see. I may end up driving into the big city and verifying it in person before buying or Borrowing, thanksfor the tip on autozone lending tools. I'll post my conclusions. Thanks for all your input

wheelsup
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Location: Raleigh, NC

Re: 94 850 drive axle nut question

Postby wheelsup » Fri Jun 04, 2010 2:53 pm

Advance Auto also has a wheel bearing kit that has 4 sockets in it. Impact grade, I think 30, 32, 34, and 36 mm. It has the one you need. $50 and you get it back when you return it, there is one 3 miles up the road from me that I've gotten that from like 4x in the past year. I just need to buy a set haha.

I used an impact to remove the nuts, they are on there pretty good. My Lowes/Kobalt impact spun them off. It wouldn't budge the crank nut though.
1995 850 GLT Wagon w/ 185,000 miles

patrioty3k
Posts: 134
Joined: Tue Dec 23, 2008 12:27 pm
Year and Model: 1995 850 Turbo Wagon
Location: Southwick Ma.

Re: 94 850 drive axle nut question

Postby patrioty3k » Fri Jun 04, 2010 9:24 pm

:oops: Sorry to skippythepuppy,850tech,I was wrong about the torque @ 300 ft. lbs., actually should be 89 ft. lbs. in that ballpark,what I was actually trying to say was, that on my son's '96 850 glt ,the nut was on so tight,I had go to local garage to 'break it loose' with an impact wrench..both our '96 GLT{past} and my present '95 Turbo uses the 36mm socket....hope this helps! :mrgreen: TRY the 36mm.....
1995 850 Turbo S/Wagon,Alpine head w/Sirius Sat. Radio--"OCTANE" power!
200K $400 Sleeper...nuff said!


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