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What type of Diff Fluid do I need for a 8.25 Rear
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Author:  ruffrich26 [ Thu Oct 25, 2012 10:57 pm ]
Post subject:  What type of Diff Fluid do I need for a 8.25 Rear
I have a 2000 xj sport and I have a rear Diff seepage I was gonna fix it and get a new diff cover but I'm not 100% postive on what type of fluid I need does anyone know? Thank you

Cheers Rich :JEEPIN:
Author:  rasyman78 [ Fri Oct 26, 2012 12:21 pm ]
Post subject:  Re: What type of Diff Fluid do I need for a 8.25 Rear
SAE 75W-90 API-GL5 grade gear oil or 75w-140 for towing or offroad use
Author:  tommudd [ Fri Oct 26, 2012 12:41 pm ]
Post subject:  Re: What type of Diff Fluid do I need for a 8.25 Rear
and not the synthetic either straight Dino
Author:  ruffrich26 [ Fri Oct 26, 2012 4:04 pm ]
Post subject:  Re: What type of Diff Fluid do I need for a 8.25 Rear
Thanks!! :pepper:

rasyman78 wrote:
SAE 75W-90 API-GL5 grade gear oil or 75w-140 for towing or offroad use
Author:  ruffrich26 [ Fri Oct 26, 2012 4:05 pm ]
Post subject:  Re: What type of Diff Fluid do I need for a 8.25 Rear
someone also suggested a Lube locker?? Do I need that what is it even?

tommudd wrote:
and not the synthetic either straight Dino
Author:  STINGN [ Fri Oct 26, 2012 5:19 pm ]
Post subject:  Re: What type of Diff Fluid do I need for a 8.25 Rear
ruffrich26 wrote:
someone also suggested a Lube locker?? Do I need that what is it even?

tommudd wrote:
and not the synthetic either straight Dino

thats for when u take the diff off and drain it to re seal the cover
Author:  ryanee182 [ Fri Oct 26, 2012 7:05 pm ]
Post subject:  Re: What type of Diff Fluid do I need for a 8.25 Rear
tommudd wrote:
and not the synthetic either straight Dino


75w-90 and 75w-140 mentioned above are SYNTHETIC weights

You want 85w-90 or 85w-140 for DINO weights, as recommended by Tommudd and many others.
Author:  KJ Willy [ Sun Oct 28, 2012 8:33 am ]
Post subject:  Re: What type of Diff Fluid do I need for a 8.25 Rear
ruffrich26 wrote:
someone also suggested a Lube locker?? Do I need that what is it even?

tommudd wrote:
and not the synthetic either straight Dino


Different people will have different opinions on the lube locker, but if you have a drain plug on the difs then I would honestly just do RTV to make the gasket/seal at the dif cover. If no drain plug then the decision is up to you on how often you will change your dif fluid and how much of a headache you want each time of cleaning the old RTV off.

http://www.lubelocker.com/products/products/2-dana
Author:  ruffrich26 [ Sun Oct 28, 2012 1:10 pm ]
Post subject:  Re: What type of Diff Fluid do I need for a 8.25 Rear
I do have a drain plug and I wouldn't expect to be changing it too often and so my choices are a 75w-140 SYNTHETIC which is for towing and offroad use OR a 85w-140 which is straight DINO and then there's a lube locker or performing an RTV whats an RTV? Thanks for the help guys clearly I'm a noobie when it comes to this lol

KJ Willy wrote:
ruffrich26 wrote:
someone also suggested a Lube locker?? Do I need that what is it even?

tommudd wrote:
and not the synthetic either straight Dino


Different people will have different opinions on the lube locker, but if you have a drain plug on the difs then I would honestly just do RTV to make the gasket/seal at the dif cover. If no drain plug then the decision is up to you on how often you will change your dif fluid and how much of a headache you want each time of cleaning the old RTV off.

http://www.lubelocker.com/products/products/2-dana
Author:  tommudd [ Sun Oct 28, 2012 3:51 pm ]
Post subject:  Re: What type of Diff Fluid do I need for a 8.25 Rear
RTV is a sealer
and again no on the synthetic
One of the guys over here ( BugginKJ) has been running Amsoil synthetic ever since he got the KJ, we changed it out recently to Dino. The low hum he had ever since he bought it went away and hasn't came back

I don't use the lubelocker or RTV
ones a mess, others too expensive
back when we did my gears we glued a stock gasket onto the Crane cover.
Now I just pull the cover off, let it drain out, clean everything and back on it goes.
No leaks, old dragracers trick :wink:
of course won't work too well with stock cover due to how cheap and thin they are
Author:  ruffrich26 [ Sun Oct 28, 2012 10:24 pm ]
Post subject:  Re: What type of Diff Fluid do I need for a 8.25 Rear
I found a Lubelocker at napa for 4 bucks so Im considering that and the RTV though its messy and thanks Tommud :BANANA:
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