3.0 swap to a 3.4 in 88 pickup
 

Trying to find out how hard an what I need for the 3.4 swap is on my 88 pickup. It's got the 3.0 in it an I also didn't know if my transmission will work on the 3.4

There's an entire forum devoted to this. I'd start there. https://www.yotatech.com/forums/f160/