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Old 04-02-2012, 07:32 PM   #1
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Driveline service

How often should the front and rear shafts be serviced. My JKU with 43,000mi was in for some service at the stealers and apparently the fluid is really black and needs changing as they aren't lubing my diffs properly says the advisor and it's 430$? I just picked it up and might call and see what another shop would charge? Is this common or could they be messing with me? If so how can I tell.. Thanks

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Old 04-02-2012, 07:52 PM   #2
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Quote:
Originally Posted by JkJared
How often should the front and rear shafts be serviced. My JKU with 43,000mi was in for some service at the stealers and apparently the fluid is really black and needs changing as they aren't lubing my diffs properly says the advisor and it's 430$? I just picked it up and might call and see what another shop would charge? Is this common or could they be messing with me? If so how can I tell.. Thanks
Dude........ Do it yourself.

If you can change your oil. You can do the Diffs..... Even easier if you have 44's

There is a write up somewhere.... Somebody has it I'm sure

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Old 04-02-2012, 07:54 PM   #3
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Old 04-02-2012, 07:54 PM   #4
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Are they just talking a drain and fill, or a full cap knockoff? Either way, $430 is madness.
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Old 04-02-2012, 08:02 PM   #5
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It doesn't get any easier...there is a drain plug on bottom and a fill plug on top. Don't even have to pop off the covers!
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Old 04-02-2012, 08:06 PM   #6
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$430? Sure they didn't mean rubles, or something?
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Old 04-02-2012, 08:08 PM   #7
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Give me $400, I'll do em for ya

Deal ??
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Old 04-02-2012, 08:18 PM   #8
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Old 04-02-2012, 08:24 PM   #9
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Darn you.... I'm out $400 now :P
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Old 04-02-2012, 08:25 PM   #10
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Quote:
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Darn you.... I'm out $400 now :P
I'd do it for $300.

I think there's write ups for all fluids on project JK too.
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Old 04-02-2012, 08:28 PM   #11
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No I just had the diffs serviced at a different dealership the front axle seal was leaking so they replaced the front diff for free and they recommended I do the rear as well for 150 so I did like 3k ago. Then today I went to a different dealer since its closer and they have never seen my rig. But they told me driveline service and that it was expensive because it was synthetic. And on the invoice for my oil change and rotation says recommended driveline service and emissions service. Sounds like they are just trying to get some money hey?
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Old 04-02-2012, 08:30 PM   #12
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Quote:
Originally Posted by JkJared
No I just had the diffs serviced at a different dealership the front axle seal was leaking so they replaced the front diff for free and they recommended I do the rear as well for 150 so I did like 3k ago. Then today I went to a different dealer since its closer and they have never seen my rig. But they told me driveline service and that it was expensive because it was synthetic. And on the invoice for my oil change and rotation says recommended driveline service and emissions service. Sounds like they are just trying to get some money hey?
Yep
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Old 04-02-2012, 08:39 PM   #13
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Yeah I'm glad I got the hell outta there. Never going there again haha but I'm curious about what an emissions service is for 180$?
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Old 04-02-2012, 08:40 PM   #14
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I also want to add that in the video it shows the removal of the diff covers to change the fluid. This isn't necessary if this is your first diff fluid change. You can simply:

1. pull the drain plug
2. drain the fluid
3. clean the plug with a towel and some brake cleaner
4. fill with 75W90 Synthetic Gear Oil until it begins coming out the plug hole (about 1 1/2 quarts front, 2 1/2 quarts rear)
5. put the plug back in and your done.

You can pop the diff covers and clean the factory sealant off them and replace with new RTV every other diff change.
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Old 04-02-2012, 08:43 PM   #15
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Quote:
Originally Posted by kjeeper10 View Post
Dude........ Do it yourself.

If you can change your oil. You can do the Diffs..... Even easier if you have 44's

There is a write up somewhere.... Somebody has it I'm sure
A Jeep D30 is just as easy. Project-JK.com - Jeep JK Wrangler Resource » Jeep JK Wrangler Maintenance Differential Fluid Change Write-Up
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Old 04-02-2012, 08:46 PM   #16
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Quote:
Originally Posted by JkJared View Post
How often should the front and rear shafts be serviced. My JKU with 43,000mi was in for some service at the stealers and apparently the fluid is really black and needs changing as they aren't lubing my diffs properly says the advisor and it's 430$? I just picked it up and might call and see what another shop would charge? Is this common or could they be messing with me? If so how can I tell.. Thanks

If you wheel or tow it would be a good idea to change the fluid, otherwise you're fine. FWIW, brand new 75W-90 gear oil is very black. Your service advisor is full of crap.
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Old 04-02-2012, 08:48 PM   #17
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Quote:
Originally Posted by ESP View Post
I also want to add that in the video it shows the removal of the diff covers to change the fluid. This isn't necessary if this is your first diff fluid change. You can simply:

1. pull the drain plug
2. drain the fluid
3. clean the plug with a towel and some brake cleaner
4. fill with 4x quarts of 75W90 Synthetic Gear Oil until it begins coming out the plug hole
5. put the plug back in and your done.

You can pop the diff covers and clean the factory sealant off them and replace with new RTV every other diff change.

Whoa there cochise! 4 quarts is enough for both front and back.
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Old 04-02-2012, 08:50 PM   #18
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Quote:
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No I just had the diffs serviced at a different dealership the front axle seal was leaking so they replaced the front diff for free and they recommended I do the rear as well for 150 so I did like 3k ago. Then today I went to a different dealer since its closer and they have never seen my rig. But they told me driveline service and that it was expensive because it was synthetic. And on the invoice for my oil change and rotation says recommended driveline service and emissions service. Sounds like they are just trying to get some money hey?
Synthetic is expensive. I usually use Royal Purple, but couldn't get 4 quarts so I went with Mobil1 this time, which was $1 cheaper at $18.99.
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Old 04-02-2012, 08:53 PM   #19
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Whoa there cochise! 4 quarts is enough for both front and back.
Beat ya with the edit before the post.
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Old 04-02-2012, 08:53 PM   #20
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WOW Dag, maybe Royal Purple comes that way, but


Quote:
Originally Posted by daggo66 View Post
If you wheel or tow it would be a good idea to change the fluid, otherwise you're fine. FWIW, brand new 75W-90 gear oil is very black. Your service advisor is full of crap.
My Valvoline 75w-140 syn/w additive is honey colered--

Maybe they're all a little different-and it costs $14 bucks a QT !

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Old 04-02-2012, 08:58 PM   #21
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Beat ya with the edit before the post.
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Old 04-02-2012, 09:01 PM   #22
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WOW Dag, maybe Royal Purple comes that way, but




My Valvoline 75w-140 syn/w additive is honey colered--

Maybe they're all a little different-and it costs $14 bucks a QT !

JIMBO

Notice that I said gear oil meaning dino. Maybe not black, but pretty darn close. BTW, RP gear oil actuall has a purple tint. It was still purple as it drained, but in the pan it still looked black.
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Old 04-02-2012, 09:32 PM   #23
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The TJ d30/35 did not have drain plugs. I had to pull the covers.
Or suck it out like those idiots at JL
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Old 04-02-2012, 09:39 PM   #24
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The TJ d30/35 did not have drain plugs. I had to pull the covers.
Or suck it out like those idiots at JL

That certainly explains things. Ingesting that stuff causes brain damage.
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Old 04-02-2012, 09:48 PM   #25
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YUP, it'll also give you subconscious desires to go--

-------------------SLIPPIN & SLIDIN-----------------

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Old 04-02-2012, 09:52 PM   #26
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The TJ d30/35 did not have drain plugs. I had to pull the covers.
Or suck it out like those idiots at JL
shhh they'll hear you
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Old 04-02-2012, 09:53 PM   #27
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Quote:
Originally Posted by ESP

ssssssssh they'll hear you
Hey, thats my condo unit


Wait till you see the pool
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Old 04-02-2012, 10:14 PM   #28
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rear and front diff fluid chg

hi, i took in a previous jeep i had 2001 tj with 75k miles, took it in
for a oil change and when up on the lift they show me some small fluid
leak front and rear, they told me change fluid for 75$ for one or 100$ for
both front and rear, it did also include the 75/90w fluid, i was quite pleased with the work and the price, make some phone calls and shop
or you can do it your self for about 50$$ should take about 1 hour if
all goes well ...good luck have fun take a look at the previous vids.
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Old 04-02-2012, 10:31 PM   #29
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shhh they'll hear you

Hope that's not in tornado country.
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Old 04-02-2012, 10:40 PM   #30
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Yeah I honestly don't think it's necessary at all. I was just confused as to what a driveline service is I thought maybe the drive shaft or something needed greasing or a new boot i wasn't sure at all. But not since it's diff fluid changes I'm definitely fine. I'm still unclear however what an emissions service is?? And yeah my JKU has the D44 with LSD do it has Mopar synthetic I believe 75W 140.

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