Differantial oil

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

You are already receiving sage advice from the knowledgeable folks on this Forum.

 

[Doubeleive]

boy that weatherstripping pfpe lube is expensive, a little itty bitty 1oz bottle is over $50
I figured mine is 10 years old and I have never lubed the weather stripping as recommended, but I do clean them with 409
shopped around and this looks like the best price $36 for a 2oz so I got some, should last a while apparently a tiny bit goes along way
https://www.ebay.com/itm/1753755914...lRdkzI68D1W4ikn78iJYCMjmmep2|tkp:BFBMxO2749Fh

 

[BlaineBug]

boy that weatherstripping pfpe lube is expensive, a little itty bitty 1oz bottle is over $50
I figured mine is 10 years old and I have never lubed the weather stripping as recommended, but I do clean them with 409
shopped around and this looks like the best price $36 for a 2oz so I got some, should last a while apparently a tiny bit goes along way
https://www.ebay.com/itm/175375591491?hash=item28d5332843:g:j-MAAOSwqLVi87FQ&amdata=enc:AQAHAAAA4Na1H/v36GS8azafkM0c5NSIr/lv/g8yqqe1dxSK4xWwkcs3E3jAKnEq6nDDFrIfs3NpjKs76Dvlszz+yqRmj4ZTqu12IQiB7VnLDGscvHyb955GC/8O175php13JUTzu/ldOpygDqoucgHZ343+QQqqneqZ2dfHuT+p41LW0lfYCK4drZ8J4sbysJuKKVQFiOXGiScAYmAlJ0Fd2wB014J0BZ6PkbzU52YMAO9KLAsyQGddvhDsN+UphT0sAidm4nccZtlD6JzxAHXplRdkzI68D1W4ikn78iJYCMjmmep2|tkp:BFBMxO2749Fh

Silicone spray should also work good, no?

 

[BlaineBug]

My 2019 Yukon's owners manual calls for 75W-90 in the front and 75W-85 in the rear. Can you use either of these weights in both the front and the rear? Probably!

 

[acres90]

Hiw much do they hold?

 

[Doubeleive]

Silicone spray should also work good, no?

probably but the stuff they say to use is pfpe type because I guess it soaks into the rubber and it's not affected by heat or cold, the stuff I linked is used by volkswagon, land rover, gm. I don't know not an expert by any means but $40 didn't hurt too bad for something I need to do anyway. I already replaced the inner door seals and those were not cheap so I guess it couldn't hurt to lube them all and maybe have them last a little longer

 

[BlaineBug]

Hiw much do they hold?

Transfer case: 1.6 quarts

Differentials are about 2 quarts each, not listed in the manual. Fill until full and seeping from fill plug opening just like the transfer case.

 

[acres90]

Just got done with the front...held right at 2 qts

 

[acres90]

Transfer case: 1.6 quarts

Differentials are about 2 quarts each, not listed in the manual. Fill until full and seeping from fill plug opening just like the transfer case.

Is gasket on the rear reusable?

 

[gooffeyguy]

Yup, my 2012 owners manual shows 75w90 synthetic for both