WIP Bruckell Nine D-series frame swap

Im putting a modified d series frame under the bruckell nine so i can run modded suspensions, but im having issues with the shocks and leaf mounts.
two leaf mounts are okay but the back two are freaking out and i dont know how to fix it. i have to jbeam it manually and idk hardly what im doing the frame is fine but i cant get the mounts right if anyone has insight into it i would really appreciate help on this, will post files if needed

 

Possible missing beams

 

there is a paid mod that makes b9 a prerunner and a free one on kofi or patreon that makes it a crawler

 

Already exists on the repo uses hopper axles body swap to dseries frame much easier with jbeam work

 

i dont want those mods already seen them i wanna use deseries axles so i can build crawlers