Yes you need to weld them. I say do what ever you think is best for the set up. I have dumped too much cash out the window when it comes to buggys. I build it then it needs upgrading to handle the new power or beating it is getting from the trails... I say do it the strongest way needed for the future, if you upgrade to something with power like a 220hp 6 cyl. or go subi or turbo. It saves cash for the future...
The institute of SeaBee Turbo Buggy.