This is a slightly modded replacement bulkhead for the KidzTech Yamaha Sr Viper 1:6 scale snowmobile.
I have made the A-arms mounting points beefier (mine broke there).
Print it standing up, with supports everywhere or experiment what works for you.
Best to print in PETG, Polycarbonate or some other strong material.
I used eSun PLA+ and it works good also.
Sketchup source included for mods.