Ok, first time I am doing this myself. No more overpriced general maintenance from the dealer. I am about to order all the items needed to change out the front and rear differential fluids but my main concern now is which RTV to use. I see some have used the 1 minute gasket maker and others just say apply RTV. I was going to use the Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker. I also checked the Permatex web site and they have a new Permatex Gear Oil RTV Sealant but the Technical Data Sheet says the product dries tack free in two hours and fully cures in 24 hours.

Which one do some of you use and can I fill the differentials back up after 2 hours or do I have to wait longer?

 

I personally would just use the standard black RTV myself.
I would wait whatever it says on the package. At least 2hrs.

 

I used the red stuff . I noted the date and the miles when I did mine but not the sealant type. Heat isn't a major deal. It gets toasty, but not blazing. I filled the diff about an hour after I put the PML cover on (maybe 90 minutes after applying the "stuff").

 

An alternative method would be to use gaskets, most auto stores have the rear dif gasket in stock, but I had to order the front one from RockAuto. Neither one has leaked as of yet.

 

Permatex Right Stuff 1 minute gasket maker. Just apply and torque tight, NO WAITING. It works great, and saves lots of time, but pricey. Pressurized can cost about $18.00, But it is fast to work with. Seriously, just tighten and refill the diff after about 1-2 minute wait.

 

Thanks for the responses. Went with the Ultra Black, waitng for two hours was not an issue as is poured down rain here for about that long once I put the front Diff cover back on.

Here are some pictures I took. It was hard to see the C-Clips in the back on due to the way the diff was positioned but from the pictures it appears that are both still in place. Front was a bit difficult just due to the limited space. Everything appears to be fine as this is the first Front & Rear diff change on the vehicle at 47,799.

Next weekend I will be doing the Transfer Case drain and refill. And then a home CAI over the next few weeks.