So far i have a pass drop chevy king pin 60.
Im planning to swap this in the front and use a d300 t case to run the pass drop axle.
I know ill need to rebuild it all and clock the case. I plan to get a 4:1 and twin stick it.

What else am i gonna have to do other than all the fab work required to get the axle to swap.

Steering? whats the most backspace i can run for rims?
Driveshafts?
Floors?
Exhaust?

Anyone who can give me the right boost would help alot

Thanks