Truck doesn’t change gears smoothly

[Zocaid]

Have a 2006 CM870 I don’t know if this is an engine question or a transmission question but on my truck (06 Volvo) when I change gears sometimes it grabs when I go into the next gear. Even though I’m up shifting the truck kind of pulls back like I have downshifted. Even on my best shifts the truck still makes a little movement like it’s just not smooth. You can really feel it Low side and it’s not as bad but can still notice on the high. I have about 15k on a Cm870 long block, 56k on a eaton fuller 10 sp and just got a new turbo and air control box this week. I had these same issues with the previous motor and transmission as well. Any ideas would be appreciated. I’m running out.