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Unread 04-12-2013, 04:40 PM   #1
SubAtomicGenius
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Show off your JK nut sack - aftermarket and upgraded diff covers

Just got a Poison Spyder D44JK and D30 JK diff cover. In the process of prepping and installing.

Lets see pics and ideas of JK aftermarket diff covers and other diff cover mods! Posting pics as soon as they're done tomorrow!

Cheers!

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Unread 04-12-2013, 04:44 PM   #2
Filthy-Beast
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did you paint the Spyder a different color?
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Unread 04-12-2013, 08:41 PM   #3
Wavedatya
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I thought about painting mine and was thinking of getting a stencil with "jeep" and painting on the dif cover . Cheesy? Yes lol.
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Unread 04-12-2013, 09:06 PM   #4
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Quote:
Originally Posted by Filthy-Beast View Post
did you paint the Spyder a different color?
That'd look pretty bad ***.
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Unread 04-13-2013, 09:21 PM   #5
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Not the best angle, but here is my rear G2 diff cover:
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Unread 04-14-2013, 06:43 AM   #6
SubAtomicGenius
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Filling up the diffs, just realized how important it is to make sure that you add extra fluid with aftermarket diff covers on. They take a considerable more amount of oil than stock.
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Unread 04-14-2013, 07:52 AM   #7
Silverton34
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They don't really take any more than stock. Don't make the mistake of filling them to the bottom of the fill hole. If you want to put a little extra in to ensure the rotated upward pinion bearing is lubed limit the extra amount to four ounces.
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Unread 04-14-2013, 07:55 AM   #8
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You definitely want to fill them to the stock level without over-filling that is for sure. However, the riddler-style covers definitely use more volume of oil than just a couple of ounces, even to stock fluid level. Coupled with the fact that the diff cover angle changes with variable lift heights as well.

BTW, no the covers are painted plain red with no 'fancy' spider... lol.
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Unread 04-14-2013, 08:02 AM   #9
Silverton34
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I can't see how the riddler covers change the lube volume, aren't they the same size?
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Unread 04-14-2013, 08:11 AM   #10
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Unless you're in competition, you don't need any more fluid than the D44/D30 design--

Even knowing that, I increase the volume by filling each diff, using the driveway angle--adds a couple OZs, no biggee

Use a top SYN, the amount is satisfactory anywho !

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Unread 04-14-2013, 09:19 AM   #11
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Quote:
Originally Posted by Silverton34 View Post
I can't see how the riddler covers change the lube volume, aren't they the same size?

Nope, stock cover sticks out about an inch-or-so past the flange with a stamped section for clearance for the ring gear. However, the Riddler cover bevels out from the flange along the entire perimeter, making a bowl shape - so I'd say the cover itself could hold a liter of gear oil if you sat it on the floor and filled it up! My concern is that if you put the standard 2.26L gear oil in the D44JK, the fluid level wouldn't be high as stock levels because of the extra volume that the cover takes up, so I'd say that you'd have to add a few more ounces. The biggest concern is as long as the fluid level is getting out to the axle bearings on the rear, I suppose.


- Edit - doing some research and the manufacturers say that stock fluid levels should be OK. I'll have to investigate further!
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Unread 04-14-2013, 09:30 AM   #12
Silverton34
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So how many extra ounces did you use?
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Unread 04-14-2013, 10:08 AM   #13
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Anyone have the Teraflex cover?
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Unread 04-14-2013, 10:09 AM   #14
SubAtomicGenius
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About 4-6 extra ounces brought me to axle tube level, bringing the total to 2.4 liters or 2.6 quarts (stock requires 2.375 quarts). I'm sure that the stock amount wasn't enough I don't think, especially where the axle is rotated due to the lift. I won't have any problems with being over-filled - I could probably add a wee bit more. My concern would be that the rear axle bearings got some oil. Another consideration is that I now have an ARB locker in the rear, which also takes up more volume than the open carrier I had prior to the re-gear I'd imagine. So many variables have changed, but it is certainly interesting.

Also note that before I got the aftermarket covers, I could not put stock levels of fluid in my diff due to the lift-induced axle rotation (caster) and the fill port being below the fluid level. I had to park on an incline or jack it up to get the stock fluid levels in. While poking around and scratching my head, I got to use my probe-camera for the first time since my middle child clogged the toilet with a tooth-brush. Pretty handy.
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Unread 04-14-2013, 12:48 PM   #15
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