I'd say run it with the 4.88's and see how it is. If you don't like 'em maybe throw up a trade your gears for some 5.38's.
That's the plan for now. My buddy had a 3rd Gen runner with tons, 538s and 42" tires and he scooted up grades pretty good. I'm hoping my little single cab which is way lighter will be alright on the 488s
I haven't got much done on the motor swap other than collect parts and make some motor
Mounts. I got the w59 bell housing, flywheel and new clutch.
Pic of the mount I made. Just a bushed dom sleeve fromRuff stuff welded to the stock motor mount bracket. Then I will use link tabs to bolt it to the frame.