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How to Change Rear Differential Fluid

Changing diff lube yourself is easy
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Re: How to Change Rear Differential Fluid

Postby johnelectric68 » Mar 18 2017, 5:22am

Hi everyone, I have a 2007 Silverado LT 1500 crew cab 5.3 eng new body style, I know that I have a rear differential and a front transfer case, Is there also a front differential or is the front transfer case the front differential????? Thanks
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Re: How to Change Rear Differential Fluid

Postby esox07 » Mar 18 2017, 12:39pm

If you have a 4wd truck, then, in addition to the rear differential, you also have a front differential and transfer case. The transfer case grabs the power off the transmission and transfers it up to the front differential which gives power to the front wheels.
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Re: How to Change Rear Differential Fluid

Postby EKinMN [OP] » Mar 18 2017, 1:05pm

Yup, what he said. :-)
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Re: How to Change Rear Differential Fluid

Postby johnelectric68 » Mar 18 2017, 8:00pm

So, when I change the fluid, there is 3 things to change, transfer case, front differential, rear differential,??
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Re: How to Change Rear Differential Fluid

Postby EKinMN [OP] » Mar 18 2017, 8:12pm

Yes. Differential uses transmission fluid. There is a separate write up for that too. The front and rear differential uses gear oil. I prefer a full synthetic 75w90.

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Re: How to Change Rear Differential Fluid

Postby 19trax95 » Mar 18 2017, 8:12pm

That's correct. But they don't all necessarily have the same change interval.
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Re: How to Change Rear Differential Fluid

Postby EKinMN [OP] » Mar 18 2017, 8:13pm

Sorry. I meant the transfer case uses tranny fluid.

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Re: How to Change Rear Differential Fluid

Postby johnelectric68 » Mar 18 2017, 8:40pm

Thanks, dealer want $548 plus tax just to change all three
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Re: How to Change Rear Differential Fluid

Postby esox07 » Mar 18 2017, 8:58pm

You can do them all for under $100 and one afternoon. I would consider doing the transmission as well. I do all "FOUR" of them at about 40,000 mile intervals.

THere are HOW TO write ups for all of those services in the "HOW TO" section.
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Re: How to Change Rear Differential Fluid

Postby johnelectric68 » Mar 19 2017, 5:12am

Thanks, do the lube locker rear diff. Gaskets go on dry???
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