Its going to take some time for them to get used to each other,
My Malamute is a big dumb goof ball, he loves everyone and everything. He is very tolerant of the ChiJack.
The ChiJack on the other hand isnt tolerant of the Malamute. snarls, growls ,snaps ,being a total jerk, while the goofy beast seems to be saying," come play with me I like you".
If the Beast comes over to us and the little one is sitting there the little one goes all mean and grouchy, he has to be put on the floor immediately so he will know he isnt allowed to act out like that, once on the floor he is pretty much ok but there are times where he has been snappy.
When we first got the Chijack, I seriously didnt think it was going to work out, after 2 weeks of the little one being a brute to the large dog it started sorting itself out.
Now they can play for a little bit together before the little one gets mean again. but its slowly easing into a nice 2 dog household.
The Chijack has been here now about a month and it is settling down a lot.