Subframe connectors for a driver/cruiser, necessary to weld to floor?

273 said

Depends how there designed, like I said if designed right they can be just as strong. Doesn't mean that there are ones available that are designed right.

The factory K frame seems to work fine with only 4 bolts lot of stress/force goes through it, steering, braking, engine etc..

Click to expand...

For them to be "designed right" would make them expensive and enough of a pain to install (read: drilling lots of holes and installing lots of bolts) that it wouldn't be worth it vs welding them in.

The k-frame doesn't experience the same kind of loading as the unibody between the front and rear subframes. That portion of the car was engineered from the beginning to utilize bolted joints so it's not a good example to use for "well they made it work there so it must be able to work elsewhere."