chins not getting along :(

[i <3 DC]

I got Diesel when he was 10 weeks old. That was about 18 months ago and I felt he may want a friend so I contacted my breeder Barb and got Cole a few days ago. He is 10 weeks and Diesel is about a year and a half old at this point (both males). Diesel is extremely active, doesnt like to be held, constantly on the move. Cole seems to be very calm, laid back, like to sleep, cuddly etc. Diesel keeps what i would call attacking Cole. I cant tell if its just getting to know eachother or not but to me Cole looks overpowered and distressed. I have tried a few times to have them together and the same thing keeps happening. At this point they are in seperate cages that i bump up against eachother to give them a safe opportunity to get used to eachother.
anyone have any advise?

 

[Kansas City Chinchillas]

Males will hump each other to show dominance.

 

[Mt. Zion Chins]

pm'd you - call me tomorrow