Front diff - Dodge Cummins Diesel Forum
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post #1 of 13 (permalink) Old 12-07-2019, 05:46 PM Thread Starter
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Front diff

Ok so stickies at top for fluid specs/capacities tells me that my front diff takes 8.5 pints which equates to 4.25 quarts. Serviced and it only allowed about 3.5 quarts before hitting fill plug. What am i missing? 3.54 gear ratio, dont know if that makes a difference

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post #2 of 13 (permalink) Old 12-07-2019, 08:09 PM
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I've always used this guide and it's been accurate.
Dodge Ram Fluid capacity and specification Information
that said, every truck I've owned is the same D60 in front, D80 in rear

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post #3 of 13 (permalink) Old 12-07-2019, 08:17 PM Thread Starter
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Thays the exact spec sheet I use and it has been accurate to the drop till now. I'm a bit confused. Unless my math is wrong! 8.5 pts is 4.25 quarts right? I'm no Einstein lol. 🙄
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post #4 of 13 (permalink) Old 12-07-2019, 10:42 PM
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Have you confirmed it's a dana 60 and not a 44??

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post #5 of 13 (permalink) Old 12-07-2019, 11:04 PM Thread Starter
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Its raining cats and dogs here, I'll check in the a.m. and confirm
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post #6 of 13 (permalink) Old 12-09-2019, 04:52 PM
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Quote:
Originally Posted by Loud Pedal View Post
Have you confirmed it's a dana 60 and not a 44??
Are there Cummins equipped trucks that came with Dana 44's ???
I thought all the Diesels got Dana 60's in the front and either Dana 70's or Dana 80's in the rear.
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post #7 of 13 (permalink) Old 12-09-2019, 04:57 PM Thread Starter
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Right. I thought the Dana 44 was more a 1/2 ton application
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post #8 of 13 (permalink) Old 12-10-2019, 11:19 AM
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Right. I thought the Dana 44 was more a 1/2 ton application
8-Lug Dana 44's exist in the world as the axle has been around forever, generally find them on older gasser Chevrolet's (some even came with birfield type axle joints) . I just didn't know/ don't know if they were ever put under 2nd gen Dodge Cummins trucks.
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post #9 of 13 (permalink) Old 12-11-2019, 02:01 PM
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I was just tossing the idea out that someone previously might have swapped the front axle and not mentioned it.....

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post #10 of 13 (permalink) Old 12-11-2019, 02:53 PM Thread Starter
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It's a Dana 60. Marked on the Drivers side. Right by cover. It only took 3.5 quarts. Wierd, bit I'm not too worried. It's up to the fill plug I'll assume im good.
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post #11 of 13 (permalink) Old 12-11-2019, 04:07 PM
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"Serviced" = removed diff cover & wiped out the old oil or used a suction gun through the fill port?

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post #12 of 13 (permalink) Old 12-11-2019, 04:25 PM
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My 99 owners manual simply says within 1/4 in =/- the bottom of fill hole. Mine also took 3.5 quarts. 4.5 must be a misprint.

99 2500, Quad cab, 4x4 47RE, BD pressure lock on it, small BD 90/140 chip on the VP 44 connection plug, 17" 3rd gen wheels. 3.55 diffs. Ruenell front bumper and warn winch, Rancho adj shocks. 663k miles.
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