jeepcoma Posted January 7, 2009 Posted January 7, 2009 I bought some axles from Twisty here on the board and they've got some weeping outer seals I'd like to replace before installing them. Any recommendations for brands? I've found sets from National Oil Seal and Timken among other generic brands. I know there are differences between front left and right for CAD axles, but it's for a D30 with upgraded 1-piece axles, so are the outer left and right seals interchangeable? The rear is a D44, I'm pretty sure the outer seals are interchangeable but is there a preferred brand or piece?
BLHTAZ Posted January 7, 2009 Posted January 7, 2009 This is a write up on the shaft conversion, but it has the part numbers for the seals you need in it. It will also show you how to go about changing them as it is not a real simple job to do because you have to take the differential out if the housing and change them from inside. Click Here for the write up.
jeepcoma Posted January 7, 2009 Author Posted January 7, 2009 Thanks for the link! The solid axle conversion had already been done, and the leak is only on the driver's side outer seal, so it should be far less troublesome. I was considering just doing them all while I had the chance but time crunch will probably mean I only get to fix the ones that are leaking.
aemsee Posted January 7, 2009 Posted January 7, 2009 There is technically no factory outer seal for the D30. If there is a leaking outer seal, then there is also a leaking inner seal.
BLHTAZ Posted January 7, 2009 Posted January 7, 2009 As Joe said...there is no "outer" seal on a D30. If you have a seal leaking, no matter which side, you will have to remove the carrier from the diff housing to change it as all seals are on the inside :cheers:
jeepcoma Posted January 7, 2009 Author Posted January 7, 2009 Ok thanks. I'm looking at Advance Autopart's site, they list three two part numbers for the front: Part No. 710068 National Oil Seal Front Axle; Left Disconnect or Non-Disconnect; Right Non-Disconnect; Spicer 30-AF 7.125" R.G.; Part No. 710202 National Oil Seal Front Axle; Right; Spicer 30-AF 7.125" R.G.; Disconnect Obviously I need the 710068 for the front left (which is the only one leaking, so maybe I'll just fix that now), but would I still use the Disconnect seal for the right or Non-Disconnect (or would it not matter?) They also list 3 SKF oil seals: Part No. 11899 SKF Oil Seal Axle Shaft Seal: Front; Four Wheel Drive (4x4); Without Disconnect Axle; 2 Required Per Vehicle Part No. 15843 SKF Oil Seal Axle Shaft Seal: Front; Right Hand; 2.131 Inch O.D.; Four Wheel Drive (4x4); Disconnect Axle; 2 Required Per Vehicle Part No. 16083 SKF Oil Seal Axle Shaft Seal: Front; Right Hand; 2.286 Inch O.D.; Four Wheel Drive (4x4); Disconnect Axle; 2 Required Per Vehicle Are these worth twice the price over the national oil seal version? How would I know which I need? Note: advance is just down the street from where I work and can walk there during lunch, which is the only reason I'm checking parts there (they don't have any in stock anyway). I'm also close to Autozone, Napa, and e-distributors; I just need the seals by Monday to get going on this. Thanks guys
BLHTAZ Posted January 7, 2009 Posted January 7, 2009 Yea...the left (driver) side is the easy one to change...even though you still have to take out the diff.. The right side is a bit more challenging. Looks like you have it handled now :thumbsup:
maddzz1 Posted January 7, 2009 Posted January 7, 2009 Here are some great writeups with lots of pics. http://gojeep.willyshotrod.com/HowtoD30AxlesSeals.htm This one you have to click the axle seal link. http://www.madxj.com/
jeepcoma Posted January 8, 2009 Author Posted January 8, 2009 Ok, so I think I've got this figured out. For the front, I need seals for that fit the non-disconnect version (because they are 297 axle shafts in a regular disconnect housing), which are interchangeable left and right. That would be part number 710068 or equivalent. For the rear though there's more confusion (for me anyway). Are there four seals for this, two inner (to hold the gear oil in the pumpkin and out of the tubes) and two outer (to keep dirt out of the tubes)? Autozone lists three: Timken / Wheel Seal - Rear 9912S $11.99 Application: Dana/Spicer 44 axle Note: Outer Timken / Wheel Seal - Rear 481837 $4.99 Application: Dana/Spicer 44 axle Note: Inner Timken / Wheel Seal - Rear 2689S $17.99 Application: Dana/Spicer 44 axle I think the inner and outer makes sense, but what's this 2689S part for? These are the only details listed, there was no other information I could find.
aemsee Posted January 8, 2009 Posted January 8, 2009 I don't think you are going to find any inner seal by the carrier. You need to get gear oil to the bearings to lubricate them. I'm going to poke around the autozone site and see what they are talking about.
BLHTAZ Posted January 8, 2009 Posted January 8, 2009 The rear axle will have seals only at the outer ends. Like Joe said...the fluid lubricates the wheel bearings back there so it must be allowed to travel out to the ends of the tubes.
aemsee Posted January 8, 2009 Posted January 8, 2009 Well I had zero luck with their web site. I think what might be happening is that what they are calling the inner "seal" is actually the retaining ring that gets pressed on to the axle for some non c-clip applications. Chrysler actually made the same mistake with WJ listings at one point in time. They called the retaining ring a snap ring.
jeepcoma Posted January 8, 2009 Author Posted January 8, 2009 Yah I'm a little confused too... I plan on stopping there on my way home from work today, I'm trying to make sure I order the right parts. :???:
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