Is this the hemi tick or normal?

[Wild one]

Thanks for reassurance! I think that I can order it to the oreillys right down the road from me.

What gear oil do you recommend for the differentials?

Your truck is a 2500 and i'm not overly familiar with what they like in the diff's,but i'm sure some of the guys running a 2500 will pop in with their reconmendations.My 6.4 experience is with the SRT version of the engine,but it's oil requirements are the same as the truck 6.4.
@HEMIMANN Brian you want to take over on reconmendations for his diffs.

 

[astro223]

Your truck is a 2500 and i'm not overly familiar with what they like in the diff's,but i'm sure some of the guys running a 2500 will pop in with their reconmendations.My 6.4 experience is with the SRT version of the engine,but it's oil requirements are the same as the truck 6.4.
@HEMIMANN Brian you want to take over on reconmendations for his diffs.

Thanks! I did sone searching and I’m pretty sure I’m going to use a amsoil severe gear: https://www.amsoil.com/p/amsoil-severe-gear-75w-85-100-synthetic-gear-lube-svl/?code=SVLPK-EA

 

[White six four]

The first time I used redline fluids in the front and rear. The 2nd time I used redline in the front since I had some leftover from the first time and I used mobil delvac for the rear. All 75-90. This is for my 16. I'm not sure if they changed anything in the rears since yours is newer but the mobil delvac is a great oil and cost effective. $55.99 a gallon at summit racing. For the rear you'll end up with a smidge leftover.

I don't think the differentials are as picky as the hemi as to what fluids a guy uses.

 

[BigPoet]

I don't hear anything concerning.
This is a clip of mine with confirmed lifter failure cyl#3:
Hemi lifter tap
That's the kind of noise to worry about. The rest is just injectors and typical noisy hemi.

Thanks for sharing this. Very helpful.