Which front diff fluid?

[onecrazyfoo4u]

Which front differential fluid does everyone use? This is for my 05 1500. The manual says 80w-90 fluid, does any brand/type work fine?

[007matman]

Which front differential fluid does everyone use? This is for my 05 1500. The manual says 80w-90 fluid, does any brand/type work fine?

Roual Purple MaxGear.

 

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[DareDog]

Which front differential fluid does everyone use? This is for my 05 1500. The manual says 80w-90 fluid, does any brand/type work fine?

 

use 75w-90 Amsoil Severe gear here.

[newdude]

75w90 same as the rear. GM had cold weather performance issues with 80w90 so they changed the service recommendation to 75w90 synthetic.

[onecrazyfoo4u]

Oh okay thanks, I'll go with 75w-90 synthetic up front then. The manual doesn't give a capacity, anybody know how much? I imagine 2 qts should be enough...

[Z45]

About 1.5 qts.....

[DareDog]

About 1.5 qts.....

 

what much for rear diff?

[Gone Again]

Go to Amsoil website. Put in your vehicle info and product choices are listed along with capacities.

[Robert Paul]

I have a 2001 silverado 5.3l I have black front diff seal and vent cap. I have heard that black seal isn't compatible with synthetic oil would it be ok to use a synthetic blend 80w90 I found vavoline durablend a synthetic blend 80w90 sounds like it would be perfect to use since it's just a blend what do you all think? Thanks for the help in advance.